R/C Forum 討論室

Hello fellow R/C Soarers! Welcome to leave messages in this forum. Please post only r/c related information. Other information with commercial interest will be removed. Recently we also set up an interest group for Hong Kong R/C soarers to share their views and information related to RC soaring. You are cordially invited to join.
 

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Name: Willy
Topic: 72Mhz
Date: 31 May 2003
Time: 11:49:47

Message

It is well known that parts of 72Mhz are allocated for radio communication by taxis (and trucks?). Can their radios be tuned to the 6 proposed RC frequencies (plus the existing RC frequencies 72.080 and 72.960Mhz) on 72Mhz and cause interference to us?

I suspect many cases of interference on 72Mhz were caused by the modellers inadvertently using the taxi band, and got interference from the taxi radio. Can the opposite, i.e., taxis using the RC bands on 72Mhz, occur?

Name: Stanley Chan
Topic: Tai Wai Lower Shing Mun Resevoir site
Date: 31 May 2003
Time: 11:20:10

Message

No need to be scared of - that's our destiny. Sometimes we also see the smoke from the Diamond hill 火葬場 while flying in Fei Ngo Shan south-facing slope; this is good thermal generator!

Anyway, I occasionally go to this reservoir with my family for fishing. I have seen eagles hovering along the slopes nearby; definitely there are lift if the wind direction is right. I don't like helicopter sound there because it is quite disturbing, but being a r/c pilot I would not complain. There are many people flying electric gliders there, most of them are new to flying and really don't know how to set up and fly properly. I once saw some modellers flying with reverse direction in elevator control - push the stick up for going up and down for going down! I think this group of modellers never really communicates with other glider pilots, they just developed their own style of flying.

Name: CM Cheng
Topic: Tai Wai Site
Date: 31 May 2003
Time: 10:35:43

Message

" . . . smoke from the nearby 火葬場 . . ."?! So scaring!

Name: Ken
Topic: Tai Wai Site
Date: 31 May 2003
Time: 10:20:06

Message

I fly my electric gliders there all the time when it is East wind, especially when I do not have enough time to go to Clear Water Bay. It is a good place to practice landing. I only go there after 4:00pm because I don't like the smoke from the nearby 火葬場. In Holiday or Sunday, a lot of people have their leisure time there, so I will only play my large motor plane in week day evening. But in Sunday afternoon, a lot of people play the small china planes there. Some guys I saw them playing at that place, and after few weeks when they have more controlling skills, I saw them in Clear water Bay with their big Gliders.

Name: Y C Lui
Topic: Tai Wai
Date: 31 May 2003
Time: 09:15:30

Message

Well... the site is actually suitable for flying engine-powered helicopters but doing so will be a big nuisance to people enjoying the place so it's better to be considerate and fly something more silent.

Name: Y C Lui
Topic: Tai Wai
Date: 31 May 2003
Time: 08:54:59

Message

Yes, a nice place indeed , a grassy dam on one side for park flyers / small gliders, a reservoir at the other side where people enjoy fishing and lovers like going there because it’s a quiet and refreshing place. Helicopters ? no way ! those powered by batteries may be OK though.

When the weather is good in weekdays, I often drop by the site on my way home and spend about half an hour there flying my hand-launch gliders and flapping wing bird .

Thanks to Ken for introducing the place to us.

Happy soaring,

Y C Lui

Name: Gary
Topic: Tai Wai
Date: 31 May 2003
Time: 07:54:44

Message

Today i went to Tai Wai site to have a test flight. It is very easy to access as it is just turn left (towards Tai Wai) in a junction in the Tai Po Road and you can drive to where you will fly the plane so it is very convenience. The flying site in fact is the dam. The slope is very nice (with short grass) as it is in fact the structure of the dam.

However, there are a lot of building and hills in front of the slope for around 200m. The lower layer of the slope is without wind. You can only flyable in the upperside of the slope. As there a lots of hills in front of it and the slop is not very steep. The winds is not so lift and have some tublerence. I think it is not a good flying site for glider, but it may be a good flying site for electric plane as it got a very nice runway for in the dam and with some winds for the lift.

Also, i find there are a numbers of helicopter pilots here for hovering. I think it may be a good site for heli also.

Name: K.Y.Mak
Topic: 申請合法 RC 頻道
Date: 30 May 2003
Time: 23:39:09

Message

KK,

其實我都支持申請合法頻道,所以我都入了申請表。 只係對72mhz冇信心。 但係對能否申請到其它 band 的前景又-虃秶[!

Stanley 講到的被檢控而-n罰款或入獄,我相信罰款的可能性高D。 而且一直沒有行使的法制條文,在法庭也許可以打官司!(十分危險)

但講真句,玩 sailplane 只是-荌略撉犒C戲! 如果可以合法地玩、當然係最好啦。 實在不必因為玩、而冒這麼大的-滅I。 特別是公務-、可能長糧都冇。

合法頻道發出後,我會第一時間入貨,轉用合法頻道。 但也必然有很多其他机友會同樣地改用這 6條頻道, 可能-n實行更安全的頻道管理方式。例如、發頻道牌仔。

我上次在清水灣放隻 New Sting 時,有位机友沒有叫band便開控,把我隻 Sting lock 了入 safemode. 幸好當時隻机在高空作水?-蒂獢A才安全過了一險! 我經過這件事後,很怕撞 band!

Name: Stanley Chan
Topic: 開放頻道的好處
Date: 30 May 2003
Time: 13:58:47

Message

各位機師

到目前我-怚u有27MHz的6條頻道是不需領牌下可合法使用,我相信各位如用其他頻道都是非法的。請攘我來分釋一鴷蚑迣o72MHz的6條頻導的好處與壞處。

維持現況的壞處: 1. 如果OFTA提出檢控,你可能被罰款或入獄,對你來說你可並不為意,但你可否知到我-?葬v中有很多是律師、紀律部隊成-、公務-,如果他-抭Q控,後果可嚴-哄B工都無得做-鵅I 2. 我-怍珔R的-蒂瑹O險,一定是在合法的情況才有得賠償。 3. 在非法使用遙控器材下,我-怓ぁi能搞大型的比賽,國際比賽更加無得傾!

維持現況的好處: 沒有!你或以為現在什麼頻道都無王管任你-腹A其實不是OFTA不想執法,只是支源不足無能為力。試想就算開放6條頻道後,他-怓O不是特然有足夠人手執法呢?Sorry我不是鼓勵你繼續無王管。

開放頻道的壞處: 暫時需-n領牌,牌費是每年80元。

開放頻道的好處: 1. 可放心在合法情況下-萱M搞比賽,又有意外保險保障。 2. 這6條頻道是特別撥給遙控-蜀鬙峈滿A一定guarantee無其他干擾(自已友除外)。可能現時你或使用過72MHz,發覺干擾嚴-哄A請攘我代為解釋-鴞]。你在72MHz用的頻道可能並不是在這6條新頻道內,由於有部份72MHz的頻道巳撥給貨車和的士使用,你可能是用著他-怐瑰W道而巳。KK所說72MHz是144MHz的一半,會被jam到-萼_的理據絕對-囍言腄C接收機一般都會有-笅andpass filter,頻率高一-羲澈H號未入superhetrodyne前巳被filter走。況且接收機內有一兩級中頻,72和144之差頻一定過-屭鴗仁禳C還有,無線電波在經過Nonlinear Channel時,頻率只有-蕉W,不會除半的。 3. 在增取了這6條頻道後,如果還不足夠,我-怮K有理據向OFTA增取開放整-笅and,例如29MHz、40MHz等,到時可能還不需-n領牌。

請各位機師三思支持這過行動吧!我-怓ぁi能停留在20年不變這樣落後的局-掠琚I

Stanley

Name: Y C Lui
Topic: 申請合法 RC 頻道
Date: 30 May 2003
Time: 12:22:23

Message

補緊隻 Shooting Star﹐D 膠未乾﹐見阿 Mak 都加入討論﹐就搭搭咀。

KK 對申請合法頻率呢-茼瘞呇乎有D誤解。現就小弟所知講講小弟既睇法。只係小小意見﹐千祈-囍n扯火。

1.OFTA 依家-瓛z﹐我地-纗捩\﹐係咪就可以咁樣一直落去﹖

OFTA依家-瓛z只係因為無發生過模型遙控器干擾其它合法無線電通訊系統﹐無人投訴﹐OFTA-禶|主動去理。但一有人投訴﹐OFTA既 RMU隊 ( Radio Monitoring Unit ), 就會即刻出動﹐搵到干擾源頭就會拉人-搦妐央C依家既情況繼續落去﹐好可能有一日會出事﹐到時大家就只有一齊-╳I 27MHz band 入-?條頻率或者索性-曭情C小弟認為呢-?曮Y長久-p。

2.有合法頻率後﹐係-曮Y就會比依家少左頻率用﹖

小弟對 OFTA都叫做有D了解﹐認為-禶|。依家27MHz band已經有6條合法頻率﹐OFTA 無因為咁既-鴞]-壯琣a或禁止其它頻率既遙控器在港販賣。我地依家用既頻率-禶|因為多D合法頻率而變成”特別非法“。OFTA 既特性同一般政府部門一樣﹐就係盡量少做野。我好難想像佢地會因為我地“撩” 過佢﹐佢就會刻意做D野“將” 我地。佢-豸ㄕp搵D理由-?矞B外頻率我地好過。

3.到底申請合法頻率有也實際好處﹖

爭取保險賠償 – 依家我地買既保險可以話無也實際保障﹐發生意外後﹐保險公司會用盡方法搵理由-蠸萷。我地用既非法頻率就係一-茼n方便既理由。

向政府或其他機構-犮帠鶡a舉辦活動 - 如果場主知道我地用既頻率係非法﹐你話佢仲會-禶|-伈?琝琣a﹖

清除外來干擾 - 阿 Mak話 72MHz好多干擾﹐依家我地無野可以做﹐只有避開污糟既既頻率。但如果72MHz變成合法頻率後﹐我地就有大條道理去叫OFTA做野﹐清除干擾。

為未來批核更多遙控模型頻率奠定模式 – OFTA 開放頻率有好多考慮﹐點樣去?衡各方需-n-曮Y咁容易﹐方法-n慢慢摸索。依家OFTA提議既劃定-蒂瘞洃霈蚴Y方法之一﹐?D做野﹐就?D有方法﹐就可能?D有多D合法頻率﹐咁就大家 happy 啦﹗

4. 點解申請29 MHz ?

Stanley 已經解釋過﹐我地依家基本上無也選擇﹐好多頻段已被其他系統佔用﹐29MHz 再-禶R就-畬I駐港解放-x﹐到時就也都無。

打到呢道﹐D epoxy 已經乾﹐-n繼續補機﹐今晚又-曭噹X點有得訓啦﹗

Name: ken
Topic: Tai Wai Site
Date: 30 May 2003
Time: 11:58:58

Message

Thanks for YC's map of the Tai Wai Site, but I think the resolution is not high enough, it is difficult for people to see. If you guy want to go there, you can follow the following route: 沿大埔道.....(沙田往九龍方向), 一離開大圍上斜有一-茈k轉路口, 路牌去寶福山,一路直去, 去到盡有一大斜坡,可以放直昇機, 電-蜀? (only good for East and North-East wing). As the wind is not coming from down hill, it is not a good place for slope Glider unless the wind is strong.

Name: KK
Topic: Re: K.Y.Mak
Date: 30 May 2003
Time: 11:50:54

Message

Mak -蘅膨o對,點都會Jam 機?啦,依家好好地,百花齊放,味由得它囉,味玩寸-?party 啦,"new" 起 OFTA 就大件事啦............:-(

Mak -臙X時去學放直升機呀?你隻小小機先放在一邊,買隻油機學,好快學會啦,你都有控啦,機冇幾貴啦.....呵呵

U know who am i la~ hor hor

Name: KK
Topic: Re: K.Y.Mak
Date: 30 May 2003
Time: 11:49:03

Message

Mak -蘅膨o對,點都會Jam 機?啦,依家好好地,百花齊放,味由得它囉,味玩寸-?party 啦,"new" 起 OFTA 就大件事啦............:-(

Mak -臙X時去學放直升機呀?你隻小小機先放在一邊,買隻油機學,好快學會啦,你都有控啦,機冇幾貴啦.....呵呵

U know who am i la~ hor hor

Name: KK
Topic: Re: K.Y.Mak
Date: 30 May 2003
Time: 11:47:07

Message

Mak -蘅膨o對,點都會Jam 機?啦,依家好好地,百花齊放,味由得它囉,味玩寸-?party 啦,"new" 起 OFTA 就大件事啦............:-(

Mak -臙X時去學放直升機呀?你隻小小機先放在一邊,買隻油機學,好快學會啦,你都有控啦,機冇幾貴啦.....呵呵

U know who am i la~ hor hor

Name: K.Y.Mak
Topic: 申請合法 RC 頻道
Date: 30 May 2003
Time: 09:55:38

Message

想想o下、KK 講得都有D道理! 現在沒有--掣之下,都經常撞 Band。 日後如果只有 6-?72 band,一定-灠鬙峞C 就算比足全部 72mhz 都會有極多机會撞。

而且我發現,在-蜆Z山用 72mhz 經常 Jam 机, 在大清好D,但係-落?^雄灣,都係-躞-定! 我已經開始轉返去 35 mhz了。

反正我-怚u在-孕~玩,有冇机會申請到多D頻道呢! 我睇都冇物机會! -囓蚑迠}放頻道又-囍X法!點算好!!!

Name: Y C Lui
Topic: Tai Wai and Taiwan sites
Date: 30 May 2003
Time: 03:16:50

Message

Tai Wai : http://www.geocities.com/yclui_hk/tai_wai_site.html

Taiwan : http://home.pchome.com.tw/team/slope_family/index_map.html

Name: KK
Topic: TO: Stanley Chan about 合法band 問題
Date: 30 May 2003
Time: 01:56:19

Message

在留言板看到貴會正向OFTA 建議29 mhz 成合法 band,但這樣做會有更大問題...1. 當29mhz 合法後,即是話其它的都不合法,咁樣OFTA 就有大條道理話你使用不合法band,但現在大家都使用"不合法"的band,OFTA 又冇理會,那麼我?為咩-n把這問題帶上去OFTA,到時就有痛腳給人捉住,?時真係捉虫啦...2. 29mhz band 在滑翔機上使用沒大問題,但在-蜀驉A直升機上使用便大有問題,Jam 到九彩,-瓥q到時用72mhz band 的6-茼X法ch.嗎?你不-n忙記HK 有144 mhz band 正在使用,144 一半是72 所以在-輕鋮洏?72mhz band 十分危險,我見過有不少機友因這問題 jam 機而失事......所以gov.不理就由得他,我-怳?n去"new"起OFTA 呀,這是一大蠢事呀!!!!

Name: KK
Topic: TO: Stanley Chan about 合法band 問題
Date: 30 May 2003
Time: 01:55:36

Message

在留言板看到貴會正向OFTA 建議29 mhz 成合法 band,但這樣做會有更大問題...1. 當29mhz 合法後,即是話其它的都不合法,咁樣OFTA 就有大條道理話你使用不合法band,但現在大家都使用"不合法"的band,OFTA 又冇理會,那麼我?為咩-n把這問題帶上去OFTA,到時就有痛腳給人捉住,?時真係捉虫啦...2. 29mhz band 在滑翔機上使用沒大問題,但在-蜀驉A直升機上使用便大有問題,Jam 到九彩,-瓥q到時用72mhz band 的6-茼X法ch.嗎?你不-n忙記HK 有144 mhz band 正在使用,144 一半是72 所以在-輕鋮洏?72mhz band 十分危險,我見過有不少機友因這問題 jam 機而失事......所以gov.不理就由得他,我-怳?n去"new"起OFTA 呀,這是一大蠢事呀!!!!

Name: fatman
Topic: Taiwan Flying site
Date: 29 May 2003
Time: 20:05:33

Message

Hi Ken,

How can I get to Taiwan flying site? thx

Name: Stanley Chan
Topic: Designated flying areas
Date: 29 May 2003
Time: 12:52:31

Message

After getting more input from fellow modellers, I have updated the designated flying areas to be submitted to OFTA for the permit of using 6 licensed channels in 72MHz band. Please see the page,

http://www.rcsail.com/flying_areas.pdf

Please let me have more information as soon as possible. I will submit the information to OFTA by the end of this week.

Stanley

Name: Patrick Lam
Topic: Flying site at Tai Wai
Date: 29 May 2003
Time: 12:44:53

Message

Ken, Please specify the flying site at Tai Wai. Thanks

Name: Ken
Topic: Designated flying areas
Date: 29 May 2003
Time: 11:45:09

Message

Stanley, Can you add the Tai Wai site into the map, it is a good place for playing small electric park flyer and small glider at East-North wind. Many new comers are playing there in Holiday.

Name: Y C Lui
Topic: Designated flying areas
Date: 28 May 2003
Time: 21:48:00

Message

Hi Stanley,

The powered model aircraft club has a permanent site at 元朗大樹下西路. May be it should be included into the map if they wish to. There is a big area marked in the Tai Lam Country Park ( right over the word “Tuen Mun” on the map ), wondering what that site is for.

Y C Lui

Name: Stanley Chan
Topic: Designated flying areas
Date: 28 May 2003
Time: 13:26:36

Message

Dear All,

I have drawn up some flying areas to be submitted to OFTA for the permit of using 6 released channels in 72MHz band. Please see the page,

http://www.rcsail.com/flying_areas.pdf

The areas are mainly for glider flying, so the helicopter and powered aircraft guys please input more if you can.

Please let me have the information as soon as possible. I will submit the information to OFTA by the end of this week.

Stanley

Name: Stanley Chan
Topic: rc frequencies
Date: 28 May 2003
Time: 12:52:02

Message

To Paul:

Yes, with 6 channels, only 6 aircraft can fly simultaneously. That's why we need to put more pressure to OFTA to allocate more r/c channels.

By the way, OFTA will review the 6-channels allocation in six months time, so if there are more applications, then they might release more channels. So dear fellow r/c modellers, please go to apply the license if you can (HK$80 annual fee only). Well, you do not need to be a club member but if you are HKRCSS member, HKRCSS will handle the application for you and will pay the first year fee for you.

Happy legal soaring

Stanley

Name: Paul Tai
Topic: R/C Frequencies
Date: 27 May 2003
Time: 09:10:49

Message

Yes, effort must be put to secure more frequencies.

I am just green to R/C slope soaring and not a technical period. Is the tentative 6 channels at 72MHz only good for 6 concurrent users? Or only max 6 channels transmittors can operate?

Name: Nick
Topic: Goop
Date: 27 May 2003
Time: 03:12:23

Message

I live in the US and came across GOOP when I started building foamies. What they mean is the type of glue that comes in a tube that looks like toothpaste. In the hardware stores here, they really have the word GOOP on the package and can be easily idendified. It is about as viscous as 30 min. epoxy, and it should state that it's multipurpose contact adhesive and sealant. Another identifiable feature is that some GOOPs contain silicone. However I heard that non-silicone GOOP works better for foamies. I have only used the non-silicone ones myself so I can't compare.

Name: Y C Lui
Topic: Marine Goop
Date: 27 May 2003
Time: 02:41:36

Message

"Goop" seems to be a term invented by the Americans and although I have came across it many times, I am still not too sure what it exactly is. From on the applications of goop mentioned by US modelers, it appears to be some kind of rubbery glue like contact cement which is more commonly known as 萬能膠 here. You can get it from any stationery stores, hardware stores and super markets.

Name: fatman
Topic: Marine Goop
Date: 27 May 2003
Time: 02:26:00

Message

Hi there, I would like to know whether I can buy the subject adhesive glue at HK. If not, are there any similar glue that I can replace for the Goop.

Thx..

Name: Stanley Chan
Topic: Update information on r/c frequencies
Date: 26 May 2003
Time: 13:44:31

Message

Just back from a dinner meeting with guys from the helicopter club and the model shop distributors. We were discussing the strategy in pressing OFTA to release more r/c bands.

Firstly, OFTA now has agreed to provide 6 channels in 72MHz band for r/c club members operating in designated areas. As we are restricted in areas away from the city, they'll waive the type-acceptance approval requirement. So we need to supply them the information on our gaming areas. Once approved, OFTA will issue a six-month permit for the r/c clubs - yes, you must be a club member in order to be included in this permit. Will you consider joining HKRCSS?

Secondly, as I've said OFTA has rejected the possibility of releasing 40MHz, 35MHz, 36MHz, 41MHz and part of 72MHz bands for radio control modelling. The only band left is 29MHz, which is used in New Zealand, Singapore and Australia. However, I was told that this band might be allocated to PLA garrison soon if nobody interested in it. Therefore, we urgently held a meeting this evening with all parties concern to try to formulate a united view and action to press OFTA to release this band to r/c modelling instead of giving it to PLA. We will correct all the signatures from other r/c clubs, model shops, and manufacturers and then write a letter to OFTA stating our demand. I think this is the best we can have for the time being.

But for a longer time frame, we still want OFTA to release other bands such as 40MHz and 35MHz. I got some information from Futaba in Japan that they are lobbying the Chinese government to release r/c bands in 29MHz, 40MHz and 72MHz, and hopefully they will succeed in securing 8 channels in each of these bands soon! So if Chinese government has done this, I don't see how OFTA can resist the change.

So we should be more optimistic, right? Happy soaring

Stanley

Name: fatman
Topic: Designated areas for license-free r/c frequencies
Date: 26 May 2003
Time: 12:25:08

Message

>In February this year, OFTA exempted the licensing of radio >apparatus ( mainly 0.5 Watt walkie talkies ) operation on >409.74 – 410 MHz and I don’t believe the use of these >equipment is subject to any geographical restriction. In fact, the 409.74-410MHz has been opened for a long time at US, China and a lot of countries. OFTA is just following the worldwide standard...

However, I just wonder whether at US, China or other places, how their local "OFTA" handle for the RC frequencies.

Name: fatman
Topic: Designated areas for license-free r/c frequencies
Date: 26 May 2003
Time: 12:23:29

Message

>In February this year, OFTA exempted the licensing of radio >apparatus ( mainly 0.5 Watt walkie talkies ) operation on >409.74 – 410 MHz and I don’t believe the use of these >equipment is subject to any geographical restriction. In fact, the 409.74-410MHz has been opened for a long time at US, China and a lot of countries. OFTA is just following the worldwide standard...

However, I just wonder whether at US, China or other places, how their local "OFTA" handle for the RC frequencies.

Name: Y C Lui
Topic: Designated areas for license-free r/c frequencies
Date: 26 May 2003
Time: 04:33:28

Message

For members of the model soaring community. Our flying sites are relatively permanent and changes in the past were mostly due to natural causes such as thickening of vegetations. Furthermore, most of these sites are within country parks where flying un-powered model aircrafts is not illegal so it should be quite easy to put together a list of designated flying areas.

Helicopters and powered airplanes enthusiasts are not as lucky as most of them have been hopping around. Other than the site of their club at 元朗大樹下, the two major sites at 屯門望后石 are subject to re-development any time and the site at 南生圍 is probably illegal as the place is very close to the 米埔自然護理區 .

Sites for R/C cars are even more scattered and some of the sites provided by the Government is in the heart of the city where the use of the new R/C frequencies may cause interference to other radio communication facilities so it may be difficult to identify a fixed set of areas that is acceptable to OFTA.

To cater for the need and hence earn the support of non-soaring communities, will it be possible to designate a “forbidden zone” outside which R/C modelers can freely use the new frequency band ?

I just wonder why OFTA wants to restrict the use of the new R/C frequency band to certain geographical areas. In February this year, OFTA exempted the licensing of radio apparatus ( mainly 0.5 Watt walkie talkies ) operation on 409.74 – 410 MHz and I don’t believe the use of these equipment is subject to any geographical restriction.

Happy and legal soaring,

Y C Lui

Name: Y C Lui
Topic: Designated areas for license-free r/c frequencies
Date: 26 May 2003
Time: 04:30:45

Message

For members of the model soaring community. Our flying sites are relatively permanent and changes in the past were mostly due to natural causes such as thickening of vegetations. Furthermore, most of these sites are within country parks where flying un-powered model aircrafts is not illegal so it should be quite easy to put together a list of designated flying areas.

Helicopters and powered airplanes enthusiasts are not as lucky as most of them have been hopping around. Other than the site of their club at 元朗大樹下, the two major sites at 屯門望后石 are subject to re-development any time and the site at 南生圍 is probably illegal as the place is very close to the 米埔自然護理區 .

Sites for R/C cars are even more scattered and some of the sites provided by the Government is in the heart of the city where the use of the new R/C frequencies may cause interference to other radio communication facilities so it may be difficult to identify a fixed set of areas that is acceptable to OFTA.

To cater for the need and hence earn the support of non-soaring communities, will it be possible to designate a “forbidden zone” outside which R/C modelers can freely use the new frequency band ?

I just wonder why OFTA wants to restrict the use of the new R/C frequency band to certain geographical areas. In February this year, OFTA exempted the licensing of radio apparatus ( mainly 0.5 Watt walkie talkies ) operation on 409.74 – 410 MHz and I don’t believe the use of these equipment is subject to any geographical restriction.

Happy and legal soaring,

Y C Lui

Name: Stanley Chan
Topic: Designated areas for license-free r/c frequencies
Date: 25 May 2003
Time: 12:13:05

Message

Hi all,

We have been pressing OFTA for releasing license-free r/c bands for sometimes. Although the process is long and always frustrating, we do have some progresses recently.

First of all, OFTA has rejected the possibility of releasing 40MHz, 35MHz, 36MHz, 41MHz and part of 72MHz bands for radio control modelling because other applications are already using them. They also said that even though there are available r/c channels, a license must be applied for using the channel because the current legislature restricts this and sure they would rather like to do nothing for changing the law.

Anyway, after a long bargain, and then few months ago, they promised to release 6 licensed channels in 72MHz band but they also require us to take our transmitters to their office for type-acceptance test. The cost of the test is too expensive (over HK$10,000 for each model) and we think we are users and we shouldn't have the responsibility to do so. We then wrote to Futaba in Japan and asked them to initiate the type-acceptance test. After few exchanges with Futaba, they started to understand the situation in HK and seem willing to submit their transmitters for the acceptance test provided that OFTA will release a whole r/c band of 50+ channels. Then we contacted OFTA again trying to break the deadlock.

Until very recently, they came back to us, saying that 29MHz band may be available for r/c aircraft, and they also found a way to avoid the licensing requirement. They said that they could issue a yearly permit for the r/c clubs provided that we are operating our aircraft in designated areas approved in the permit. Well, that's good we finally have a license-free band! They are now asking us to supply the information about our flying areas. Obviously, they have mentioned that flying in the city areas is prohibited. So we want to gather all your opinions about the designated flying areas.

We will arrange a meeting with other r/c clubs and some local model shops in HK to discuss this matter and hope to have a united view and action in pressing OFTA for releasing r/c bands.

Happy soaring

Stanley

Name: Willy
Topic: 更正
Date: 25 May 2003
Time: 07:39:01

Message

「臣」﹐非「巨」。

Name: Willy
Topic: -臛s臣角、砵顛砟山
Date: 25 May 2003
Time: 07:37:55

Message

-銴~下大雨前我上過去,沿-臛s臣角道旁之石級上山頂之涼亭,跟著再上涼亭對上之山坡,發覺 flat top -偶谷鴗妖顗齯F好多,但好彩又無樹,咁此東\東北位又番生啦。

Name: Willy
Topic: -臛s巨角、砵顛砟山
Date: 25 May 2003
Time: 07:36:45

Message

-銴~下大雨前我上過去,沿-臛s巨角道旁之石級上山頂之涼亭,跟著再上涼亭對上之山坡,發覺 flat top -偶谷鴗妖顗齯F好多,但好彩又無樹,咁此東\東北位又番生啦。

Name: Willy
Topic: -臛s巨角、砵顛砟山
Date: 25 May 2003
Time: 07:34:55

Message

-銴~下大雨前我上過去,沿-臛s巨角道旁之石級上山頂之涼亭,跟著再上涼亭對上之山坡,發覺 flat top -偶谷鴗妖顗齯F好多,但好彩又無樹,咁此東\東北位又番生啦。

Name: Y C  Lui
Topic: 回 SoKeung - JR DS811 servo
Date: 23 May 2003
Time: 12:11:48

Message

多謝回覆﹐Ebay http://www.stores.ebay.com/jghobbies 果-茪H-曭齒酗]窿路﹐可以搵到禁?既 JR 貨﹐犀利﹗

Name: SoKeung
Topic: JR811
Date: 23 May 2003
Time: 11:22:22

Message

-閬n上月買了3隻,每隻$320,正價約$400。

Name: Y C Lui
Topic: JR DS811 servos
Date: 22 May 2003
Time: 23:27:34

Message

Hi guys,

I have got four DS811 digital servos that came with my new JR 9X radio. As these servos are too big even for my 3-meter Pike or Sting, they are of little use to me so I am planning to sell them. The retail price of the servo is about US$48 in US and I have tried to sell them at US$38 to guys in US via RCSE but this is still considered to be too expensive as they can get from Ebay at US$35 ! Does anyone know the price of the servo in Hongkong ?

Futaba servos are so good and cheap here that I don’t believe any locals will be interested in these servos but in case you are, pls drop me a line at yclui@netvigator.com .

If everything fails, these servos will be among table prizes in the next AGM of the club.

Name: Y C Lui
Topic: Electronic gadget
Date: 22 May 2003
Time: 13:02:59

Message

Interfacing the PIC to the LCD display should be quite easy. A drive/decoder like this http://pdfserv.maxim-ic.com/arpdf/ICM7211-ICM7212.pdf will do. Should be able to get it easily from 華輝 or 永盛 at 鴨寮街。If not, Farnell https://www.farnell.com/hk/ will almost surely have it.

Name: Y C Lui
Topic: Electronic Gadget
Date: 22 May 2003
Time: 12:31:17

Message

Umm.... just one thing. What other devices are currently operating on 433MHz ? interference, particularly at Fei Ngo Shan, can be a problem.

Name: Stanley Chan
Topic: Electronic Gadget
Date: 22 May 2003
Time: 12:03:04

Message

Interesting! A wireless link for base A and base B! It seems that we only need the Rx and Tx modules working at 433MHz. We do not need the relays and the key, so we can buy the kit and take out the RX and TX modules for our purpose. We need two Tx modules and one Rx module. We definitely need to use a microcontroller to handle the remote signals and control the LCD digit display, and run a software clock to keep all the timings. I can borrow a PIC programmer for programming PIC controllers. Are there any information on interfacing a PIC chip to a 4-digit LCD panel? Once we have all the stuff, we can start working on the circuitry.

Name: ENG
Topic: Electronic Gadget for F3F and MoM races
Date: 22 May 2003
Time: 09:49:23

Message

Please see if this can serve the remote signaling function. http://www.crowcroft.net/kitsrus/k180.pdf

Name: Y C Lui
Topic: Electronic Gadget for F3F and MoM races
Date: 22 May 2003
Time: 09:39:47

Message

Yes, I will be willing to help. Despite my EE background, I do not have much hands-on experience with electronic projects of this kind so I will only be able to play an assisting role.

To maximize the flexibility of the implementation, I would suggest the garget to be built around a micro-controller.

Wireless connection should not be too difficult. Just use our old radios which are left collecting dust on the shelf ! It’s a good way to bring them back to life .

Name: ENG
Topic: Electronic Gadget for F3F and MoM races
Date: 22 May 2003
Time: 09:09:33

Message

I don't understand your specification. However, it is easy to make the digital stop watch. It is easly to set up the the radio link. You can use one of your multiple channel Radio Transmitters and Receivers to do the job, or you can build a FM transmitter. Please search http://www.kitsrus.com for electronic gears that may meet your need. It is difficult to directly feed the data to a PDA.

Name: Stanley Chan
Topic: Electronic Gadget for F3F and MoM races
Date: 22 May 2003
Time: 07:20:21

Message

Anyone would like to help to design and make some electronic gadget for both the F3F and MoM races? My idea on the specification is:

A box with battery-powered circuitry. A 4 digit LCD display for the stopwatch. Two pairs of cable outlets to connect to the button switches for both Base A and Base B (5 buttons for each Base should be sufficient for MoM). The cables should be at least 60 meters long radiated from the centre to Base A and Base B. A beeper outlet to connect to 5 beepers, each beeper is driven by the corresponding buttons in both Base A and Base B. The master box should have a Start and Reset buttons for the both F3F and MoM races. In case of F3F, it also calculates 60s the prepare-to-launch time and 30s the height-gain time. A cable connection to a PDA to record the scores would also be desirable.

It may be better to have wireless connections from base A and base B to the centre because in some flying sites running the cable is difficult. However, it may be technically too difficult.

Is there any other idea?

Name: Danny
Topic: FF7 setting - onboard mixer
Date: 22 May 2003
Time: 00:23:16

Message

A vtail mixer will do the job for attaching 2 flaps servo to one channel while they move both up or down. $130 at Tak Cheong.

Or, the new WingMaster 3 in 1 (mixer, beeper, voltage monitor) from WindRider.com can make it, too.

http://www.windrider.com.hk/products/product.cfm?id=3

Name: Y C Lui
Topic: FF7 setting
Date: 21 May 2003
Time: 23:20:59

Message

The control functions of the FF7 seems to be not as flexible and logical as I had imagined.

Just to add a minor point to Stanley’s suggestion. If the left and right flap servos are connected with a Y-harness, the movement of one of the servos will have to be reversed in order to make both flaps move in the same direction. Otherwise, you will end up in having a pair of inboard ailerons instead of flaps ! It can be done by reversing the leads going to the servo motor and either end of the potentiometer . An external servo reversing device can also be used but it will add weight and require extra room, not to mention whether you can get the device from local hobby shops.

Name: Nick
Topic: JR 9X
Date: 21 May 2003
Time: 19:21:42

Message

Good to know that it's for sale in HK. However, it usually takes a while for it to arrive in US. Can anyone do a review, of course the glider functions particularly, and maybe post some pics of it??

Name: Stanley Chan
Topic: FF7 setting
Date: 21 May 2003
Time: 12:33:46

Message

Hi Gary,

I tried to set a crow using my old FF7. What I found out is that the airbrake function is ok for use as crow, however, you can not use flaperon function (ch1 & ch6) as ch6 is already used as flap. So you need to use aileron differential, DIFF (ch1 & ch7) instead, once you enable DIFF, flaperon will be automatically disable. This Diff is exactly the same as flaperon except it is working with ch7. There is one more problem with ch5, which is used as flap. Although you can use PMX1 to mix ch5 with ch6, ch5 is hardwired to the Gear switch for which the mixing can not easily achieve the function of both flaps (ch5 & ch6) moving up and down. In this case I would recommend you to forget about ch5 and use a on board mixer or hardwire a flag servo to ch6 servo. The airbrake function allow you to mix with the elevator as well. So my suggestion to your FF7 setting for Shooting Star is:

ch1 -> right aileron

ch2 -> right elevator

ch4 -> left elevator

ch6 -> left flap (hardware a servo to ch6 servo for right flap)

ch7 -> left aileron

Programming

Airbrake enable, set the elevator mixing if needed. Once switched on throttle stick will be used to pull the crow down

Diff enable (flaperon will be automaticalled disable)

V-tail enable

Good luck and happy soaring

Name: KK
Topic: JR 9x 有貨啦
Date: 21 May 2003
Time: 10:10:55

Message

今日上卓藝見到旗老板有得賣啦,現貨呀~~ servo 有兩種: 8301 及 811 價錢?當然靚價啦! 想知?自己問旗老板啦......呵呵

Name: Danny
Topic: To Gary - FF7 crow
Date: 21 May 2003
Time: 08:19:13

Message

Hi Gary,

I only own a t6xa, but for the ff7, I guess your ch5, like mine, is 2 way switch only, i.e. either -100% or +100%. There is no center position at all. You will have to install the flap servo horns in the way that when ch3/ch5 is at on position (e.g. -100%), the flap will be at neutral. Then centering is done by adjusting ch3/ch5's atv. Also, you should be using ch3(master) pmix ch5(slave) if you want to use throttle stick to activate the flap, but not vice versa.

There is also a problem. You use ch3(or ch5 as in your post) to pmix to ch2 for elevator compensation. But this, when flap deploys, will only move one of the vtails. You can solve this by using only one servo for vtail, ie. only elevator, but no rudder.

As in your first paragraph, not quite sure. But I guess with this setting, you should be able to move flaps and elevator with throttle stick, and air-brake switch to move both ailerons up. Just that there is no aileron/flap coupling as in my previous post.

Name: Gary
Topic: Radar Gun
Date: 21 May 2003
Time: 05:25:12

Message

As it is quite interesting to know the DS speed for the plane, I find that in US they will use a Radar Gun to measure the speed of the plane. ( Just like the police use the radar gun to sue u for speeding)

I have find out a normal use Radar Gun which can serve for this purpose. I find they use this radar gun to measure the speed of a Formie. However, It is quite expensive just for measuring speed because it cost around $1200 HKD. Here is the webpage http://www.opticsplanet.net/busspeedrads.html

Can I take the initiative to buy one radar gun together and share to use among us. I have no idea of how to share among us. It may be keep by a fellow pilots who will be a frequent flyer.

If any fellow pilots interest at the speed of the plane and want to join, please leave a note.

Name: Don Woodward
Topic: How are molded EPP and other model wings made using moldes.
Date: 21 May 2003
Time: 04:53:31

Message

Hi All

My name is Don and im trying to find out infomation on how molded EPP and other model wings made using moldes. I am trying to get a handel on the properties and process of this king of wing manufacturing. If any person can help me I would be very greatfull. U4iadog@hotmail.com

Name: Stanley Chan
Topic: Crow setting for FF7
Date: 21 May 2003
Time: 04:22:06

Message

Gary,

I am not sure why, when the flaperon is deployed, the airbrake is not working. First of all, if you are not extending the flaps to function as part of aileron or camber change, you do not need flaperon function. Second, if you are only concerned with the crow, the airbrake function will work - the throttle stick will automatically be used to pull down the crow, no need for mixing with Ch3. In this case all you need is to use a PMX1 to mix Ch6 (left flap) with Ch5 (right flap). The flaperon function should also work, I guess, because flaperon is the mixing of Ch1 (aileron) with Ch6 (flap), so it won't interfere with the crow function.

If you still have problem, bring your FF7 and Shooting Star to the flying site in the weekend see whether we can help.

Name: 玻璃仔
Topic: 各位師父好^_^
Date: 21 May 2003
Time: 00:41:23

Message

拍跳意思係吾係一齊-葵蟟鄐魌汜鼣o樣呢.^_^

Name: Y C Lui
Topic: Foamies
Date: 20 May 2003
Time: 22:09:26

Message

Me163 有一-茼n大既缺點﹐就係轉彎時 elevator -琣h小小隻機就會好似落左-躥咁﹐即刻無晒能量﹐出彎後隻機-n-奐s加速﹐想-?凳迣ㄣX難。但係如果手指就得好﹐隻機既速度就-蠵龤C到現時為止﹐我隻 Me163 同幾-荇v兄既 JW 比過﹐差-囍h快﹐但係就比阿雄隻自製 Beetle 鋸低左。Beetle 係有 D 料到。

點解有D -蜀鬻痋M有D -蜀鷚C﹐小弟真係好想了解了解。上網睇D Aerodynamics 既文章又深到暈﹐都-曭彊\講也。如果有經驗豐富既前輩指教指教就好啦﹗

話時話﹐也野係“拍跳” ﹖唸左好-@都唸-屭魽C

Name: Joe Ho
Topic: Re:Gulp vs Bluto
Date: 20 May 2003
Time: 13:33:00

Message

拍跳! GOOD idea 真係你-鷾祐琚B我都會搵你,我見過你隻 Bluto 速度好高,有機會-n比試鵅C

隻機 DS 好掂 ..... 只不過係-茪H未掂,因為當日都有試過 DS,但 WING TIP 未做好屪鰜Y始終都係差 d d,而家改良鬙[上 WING TIP 後,應該冇咁易受亂流影響,22 號會去試機。 Me 163 我都曾經擁有,佢比起 JW 54" 慢好多好多,Gulp DS 又比 JW 54" 快好多,我諗除鷛s JW 60" 、 Bluto 或 Moth 60" 又或者係 Gulp SR 先有得 fight .........

Name: Gary
Topic: Programming for FF7
Date: 20 May 2003
Time: 13:13:14

Message

Thanks all for the advice for programming my FF7. After studying all your comments, It seems quite an impossible task for FF7. The main problem is alieron and air-brake. If i deploy Flaperon Mixing, it will use the channel 6. So air-brake will not be function to the flapperon. However, do you think i can configure like this:

channel 1. left alieron channel 2. elevator channel 3. left flap channel 4. elevator channel 5. right flap channel 6 right alieron

V-Tail Mixing - for elevator and rudder Flapperon Mixing - for alieron PMX1 Mixing - channel 5 (master) mix with 3 (slave) to do the flap and use the throttle Hold to do the air-brake functions PMX2 Mixing - channel 5 (master) mix with 2 (slave) to compensate the the flap with the elevator.

Will it be a acceptable configurations?

If it not work, maybe it is time to buy a new Transmitter.

Really thanks for all your input.

Name: Stanley Chan
Topic: Gulp vs Bluto
Date: 20 May 2003
Time: 12:41:18

Message

搵日咩痚冰luto和Joe隻Gulp拍跳,睇睇邊隻快齱C我應為搞-粈oM賽一定可以較量一番,各位機友快齯J定幾隻快速Foamies囉!

Name: Y C Lui
Topic: Gulp DS
Date: 20 May 2003
Time: 11:22:34

Message

隻機DS 掂-魙i﹖有無 mold 機咁肯去? 星期六果日 D -椰n勁﹐我隻 EPP Me163 都好快﹐但囉佢黎DS就麻嘛﹐手指-n就得好好﹐如果-曮Y就會好易返-曭薴s前-?

Name: Joe Ho
Topic: My Gulp DS
Date: 20 May 2003
Time: 09:46:22

Message

5月16日當日在-蜆Z山西南位-漲虜?舅帤?CG、-楔O4級非常理想。 單單係機型鼣]-p已知它速度很快,而事實上,當日 Patrick Lam 兄隻 mini NYX 亦比隻 Gulp DS 追到氣咳,速度之高可想而知。 當然 SR 嬼l型同機?鼣]-p一定比 DS 快 ....... 其實我對 EPP 機嚙魚-曮Y咁大,我只係喜歡 DS 鼣]-p,於是-q魖滶式A假如佢係全纖維製作的話就更理想。

Name: Stanley Chan
Topic: Gulp DS
Date: 20 May 2003
Time: 06:48:39

Message

This Gulp is from Joe Ho, brother of Ah Wah who DS quite often with his MicroFloh recently. He just test flown the plane few days ago.

Who say I am not interested in foamies, I still have a ME163, a Bluto and a Bee. I think this covers the performance of a whole spectrum of EPP planes already. Should I need a Gulp? I doubt at the moment unless I have seen how its flies and it performs much better than the others. Besides, I also have my Beetle and it provides lots of fun with the same advantage of durability as EPPs.

Happy EPP soaring

Name: Y C Lui
Topic: Gulp DS
Date: 20 May 2003
Time: 05:50:41

Message

Hi Stanley,

Is that Gulp yours ? I thought you are getting bored with foamies ....

I think I will get a Gulp SR. It looks cool!

Y C Lui

Name: Stanley Chan
Topic: Gulp DS
Date: 20 May 2003
Time: 05:32:32

Message

Please see a picture of Gulp DS - first flown in HK.

http://www.rcsail.com/display51.jpg

There is also a good comment on comparision of Gulp, Bluto, Moth and JW http://groups.yahoo.com/group/soaring/message/110598

Cheers

Name: Patrick Lam
Topic: ordering Gulp DS
Date: 20 May 2003
Time: 03:36:53

Message

I am going to order a GulpDS or GulpSR. Anyone want to join? Please e-mail me pnlam@netvigator.com

Name: Patrick Lam
Topic: ordering Gulp DS
Date: 20 May 2003
Time: 03:35:10

Message

I am going to order a GulpDS or GulpSR. Anyone want to join? Please e-mail me pnlam@netvigator.com

Name: Patrick Lam
Topic: ordering Gulp DS
Date: 20 May 2003
Time: 03:34:36

Message

I am going to order a GulpDS or GulpSR. Anyone want to join? Please e-mail me pnlam@netvigator.com

Name: Motorman
Topic: MoM signalling
Date: 19 May 2003
Time: 23:27:26

Message

Hi all, I think the organiser may take some refernce in other rc fileds. Many buddy pilots who switched from rc car to rc glider may have the similar ideas as mine. The rc cars race with a computer lap counting system (Serpent/AMB). Nowadays each of the ten to twenty cars on the track has its own transponder/sensor and all the signals are recorded in the automatic system. Twenty years ago, we didn't have the transponders on the cars and all the laps were counted by, say 10 workers, by hand. Each of them had a button box. When the car passed the starting line, he pressed the button and the lap was counted and a "Bi" from the system So it seems that the "pressing button by hand" system is quite primintive as compared to the car racing system today. However, even a simple system can add more fun and we may advance to a once equipment is improved and number of participants increases.

For your interested, one of the rc car lap counting system is now using an infra red transponder (20 g )on the car to send signal to the system, while for the AMB system you need to lay a signal coil on the track. So it seems to me that the infrared transponder sytem may be way to explore for airplane. However, strong sun light on the slope and infra-red..........technical issues....have to be considered. For the info of infrared system, please go to http://www.team-orion.ch/products/pro_lcs.asp For the Serpent/AMB: http://www.mytsn.com/products/relpublic.asp?prid=1645

Just my 2 cents.

Name: Y C Lui
Topic: Signalling in Man-On-Man racing
Date: 19 May 2003
Time: 19:27:44

Message

I think Tsz Ming has got a good idea which should be explored further. A guy in UK has made an F3F timer ( http://www.customelectronics.co.uk/ click on "R/C Projects", then click on "F3F timer” ). I believe we can make similar garget for F3F and Man-on-Man racing. The circuitries should not be too complicated.

Name: Tsz Ming
Topic: One problem may happen......
Date: 19 May 2003
Time: 13:01:24

Message

Dear All

I just have one question, how can the pilot see the flag and plane at same time? I suggest to make a small mic or Bi Bi to give signal to pilot form base A, this Bi Bi should control by a long cable and attach to the pilot TX. Any idea?

Tsz Ming

Name: Stanley Chan
Topic: Man On Man Race
Date: 19 May 2003
Time: 11:58:30

Message

I think we should have sufficient man power to handle the race. We can have a maximun of three planes in air and three men on Base A and Base B, so including a CD, the total is only 10 personels. I think we can easily get at least 20 people participating the race. The problem is as Y.C. said, by using different colours of flags, pilots have to look at the flags while performing the turn. I think if we can get more people involved, we can get three helpers to stand nearby the pilots to tell them whether the flag for his plane is raised or not.

Name: Y C Lui
Topic: Man-on-Man racing
Date: 19 May 2003
Time: 09:13:11

Message

Sure ! Man-on-Man racing should be an exciting alternative to air combat which has became more or less a game of waiting for mid-airs to occur. I believe some changes to the arrangement may be helpful to inject more fun into the game. For instance, will it be a good idea to have one or two 電兔s up in the air so that pilots can have fixed targets to go after instead of switching targets all the time ?

I have had several communications with foreign pilots on how a MoM race should be conducted and the guys from ASRO, particularly Nathan Wood, have been very helpful and provided me with a lot of useful info. However, we still need to sort out a number of issues such as :

1)Signalling from base judges

In UK/US, they use flags. Each model is identified before the race start with a colored flag assigned to it. When the model passes the post the flag is raised. If it does not pass (cuts) then no flag is raised. The problem is, how can the pilots see the flags when they are focusing all their attention on their planes ?

2)Positioning of pilots

To minimize the number of men required to run the race, each pilot also acts as his own base A judge so they have to line themselves up perpendicular to the racing course at base A . Several questions arise from this setup :

- How to make sure that no pilot cheat ( well… when the level of adrenalin is running high, one just can’t help sometimes…. )

- How to prevent pilots from blocking each others’ views ? - How to make rooms for transmitter antennas when the space is tight ?

The info. I have received so far does not provide any satisfactory solutions to these potential problems so we will probably have to work it out by ourselves. Would like to hear some ideas .

Better start figuring out some ways to mount ballast to my EPP Me163….

Happy soaring,

Y C Lui

Name: CM Cheng
Topic: MoM
Date: 19 May 2003
Time: 09:10:57

Message

OK, I checked the rules. Coroplast is better classified as open class.

Name: CM Cheng
Topic: MoM
Date: 19 May 2003
Time: 08:30:11

Message

Me too!

Is coroplast allowed in foamie class?

Name: K.Y.Mak
Topic: MoM race
Date: 19 May 2003
Time: 08:13:47

Message

Hi Stanley,

Count me in. I would like to take part in both EPP and glass ship races.

Mak

Name: Stanley Chan
Topic: Man on Man Race
Date: 19 May 2003
Time: 07:07:37

Message

Hi fellow soarers,

Are there r/c pilots interested in having a Man on Man race in Hong Kong?

We have had F3F races and EPP combats before, they are good fun. But we haven't had a chance to organize a Man on Man race yet. Perhaps if we have more pilots interested in, HKRCSS can hold a MoM competition in the summer.

I guess the best slope for MoM in HK is the south-facing slope near Jat's incline in Fei Ngo Shan, so the best time for the race will be sometimes around August.

We can have a foamy class and a 60" open class, both of them are really good fun. Please see the MoM rules at

http://www.sloperacing.com/info/mom.htm

Anyone interested?

Name: Danny
Topic: Crow with old TX (e.g. T6XA)
Date: 18 May 2003
Time: 21:52:12

Message

One more setting:

Set Exponential of Ch4 to -100% so that the left stick won't have too much effect on the flap's roll authority. Of course if you pull the left stick to full left or right, the flaps still deploy full as aileron. But with Ch4 ATV set to say 50% and the above said Exp setting, it should be fine.

Name: Danny
Topic: Crow with old TX (e.g. T6XA)
Date: 18 May 2003
Time: 20:47:52

Message

Hi all,

I have a T6XA and always thinking (not yet experimented cos I dont have flap plane yet) of configurating in crow mode and flap/aileron coupling for a 4-wing-servo plane. But I have to had an extra onboard ele-mixer (which I have several under the bed).

A) Rx connection

1) Ch1 conn to right aileron servo. Ch6 conn to left.

2) Ch2 conn to elevator servo (I will use only 1 for elevator, without rudder)

3) Both flap servo conn to the mixer.

4) Ch3 conn to mixer vertical(elevator) input. Ch4 conn to mixer horizontal(aileron) input.

B) Programming / Mixing

1) 1, 6 -> flaperon, airbrake (both aileron up)

2) 1->4 mix 50% (for aileron/flap coupling)

3) 3 PMix1-> 2 (for flap / elevator compensation)

4) 3 PMix2-> 4 (for roll trimming when flap deployed)

C) Control

1) Ch3 moves flap-only down

2) Ch1 will move both aileron and coupled flap to roll

3) Pull down Ch3, and switch on Airbrake, and you will have crow.

If you don't have an ele-mixer, you may use Y-connector, but there will be no aileron/flap couple and you have to invert-install one of the flap servo.

Name: Stanley Chan
Topic: Crow (butterfly) setting for FF7
Date: 18 May 2003
Time: 13:51:25

Message

FF7 is a rather old transmitter so it does not have a crow braking system defined as in 8U or 9U systems.

For crow breaking you need 6 channels of control:

Ch1 right aileron Ch2 right elevator Ch4 left elevator Ch5 right flap Ch6 left flap Ch7 left aileron

If your FF7 has ACRO (aircraft mode), you may be able to use Air Brake Mixing (ABRK) for which Ch6 is used as flap and throttle stick is used as control to pull down the crow. Since in ABRK mode, only Ch6 is designated for flap, you can add a programmable mixing PMX1 to mix Ch6 with Ch5 so both flaps will be activated. You also need the Elevator->Flap (2->6) mixing to lower the elevator while the crow is deployed (it's necessary for Shooting Star, about 25% of down elevator is needed). One thing I am not sure how to do is the aileron to flap mixing, you might need this to extend the flaps functioning as ailerons - this will give you a better roll rate. The Flaperon function in FF7 can be used to have camber change, e.g, speed flap or lower both ailerons and flaps to achieve a better lift in case of light wind conditions.

Good soaring

Stanley

Name: Y C Lui
Topic: Reply to Gary : Programming the FF7 for Shooting Star
Date: 18 May 2003
Time: 06:17:20

Message

Hi Gary,

It appears to me that you are attempting a project that you may not be ready for . I am a JR user so I am unable to provide you with specific programming details for your Futaba FF7 but as the functionalities of the FF7 is quite similar to those of my JR Apex Computer, I believe you can take my idea as a reference and see if you can adapt and apply them to your FF7 .

Servo connection :

Elevator Ch of receiver -> servo controlling one one side of the V-tail Rudder Ch of receiver -> servo controlling the other side of the V-tail

Aileron Ch of receiver -> servo controlling the aileron on one wing half Flap Ch of receiver -> servo controlling the aileron on the other wing half

Spoiler (Airbrake) Ch of receiver -> servo controlling the flap on one wing half Gear Ch of receiver -> servo controlling the flap on the other wing half

Transmitter Programming :

1) V-tail mixing turned ON, the V-tail will move as expected when elevator / rudder controls are applied.

2) Flapperon mixing turned ON, the ailerons will move correctly ( ie. in opposite directions ) when aileron control is applied. You will be able to use the aileron differential ( i.e. the up-going aileron moves more and the down-going aileron moves less ) function as well. If you apply flap control ( may be a knob or lever on your transmitter ), both ailerons will move simultaneously and in the same direction.

3) Programmable mixing #1 turned ON . Master channel : spoiler ( airbrake), slave channel : gear. If the airbrake switch is flipped, both flaps of the wing should move simultaneously and in the same direction.

4) Enable and program the landing function ( = airbrake mixing in Futaba’s terms ? ) . Typically, this function allows you to set the positions of the flaps and elevators when the airbrake is deployed. If done correction, the followings will happen when you flip the airbrake switch :

a) Airbrake deployed. The flap connected to the airbrake channel will go down. b) Gear moves together with the airbrake due to prog mix #1. The flap connected to the gear channel will therefore go down also. c) Flaps ( those in the transmitter’s mind, they are physically the ailerons of the Shooting Star ) moves up. Both ailerons will deflect upward. d) Elevator goes down. Both control surfaces of the V-tail will deflect downward.

This is the “crow” or “butterfly” configuration that you will need when landing your Shooting Star in strong wind.

I am afraid that's all I can help. There are a lot of Futaba experts in our community and many of them will be willing to offer you advices but it may be difficult for them to do so in this forum so I would encourage you to go to the slope at weekends and ask the guys directly.

Happy Soaring,

Y C Lui

Name: Stanley Chan
Topic: Moldies for DS
Date: 17 May 2003
Time: 11:02:08

Message

Of course moldies are better than EPPs for DS. Molded plane like Shooting Star is very fast in DS. However, bigger planes like Sting and Pike are even much faster. They are also much more stable in the DS course and is actually easier to DS than smaller one does.

If you can tolerate a nerve breakdown as a result of extreme speeding, you are recommended to use a big ship for DS. The excitement will never be the same!

Name: Y C Lui
Topic: EPP or moldies for DS
Date: 17 May 2003
Time: 09:42:49

Message

Hi Danny,

Great ! If you already have got some ideas, why not try them out ? Finding out what works and what doesn’t through practice is the major source of satisfaction for many in this hobby.

Happy soaring,

Y C Lui

Name: Y C Lui
Topic: EPP covering materials
Date: 17 May 2003
Time: 09:26:40

Message

Hi Fatman,

If you are talking about weight by “performance”, adhesive tapes and Oracover are very similar if you take into account the fact that you need to have some overlapping between adjacent runs of tapes when applying them over EPP.

If you are referring to the stiffness of the airframe, especially the wing, Oracover may have some edge as it is not as elastic as adhesive tapes and it goes onto the wing in one piece instead of separate strips. However, my feeling is that the difference is not very significant as the strength of the airframe mainly comes from the fiber reinforced tapes that goes beneath the covering material.

Personally, I prefer Oracover to adhesive tapes as the latter tends to come off over time and it’s difficult to make sophisticated color patterns with them .

For more info. on covering foamies, I would suggest you to visit the website of DAW http://www.davesaircraftworks.com . Click on “foamie construction tips” and then “covering materials”.

You can get Oracover from 偉高 and adhesive tapes at any stationery stores.

Name: Danny
Topic: To YC: DS choice : EPP or molded
Date: 17 May 2003
Time: 09:19:58

Message

But I see the video from NCFM that the Moth 60 is going very fast and stable. There should be secret to make EPP DS fast. I guess:

1) Add a lot of ballast to make it's energy retention better 2) Add also weight on wing tips so that the rotational axle is more stable when crossing the boundary??

Still thinking if it's worthy to buy a EPP for DS... Much safer but may not be that interesting / thrilling...

Name: Y C Lui
Topic: DS choice : EPP or molded
Date: 17 May 2003
Time: 09:03:59

Message

Soo... it was you up there today again DSing in secret.

Well, same experience for me. I can't DS well with my EPP Me163 because it often refuses to go back to the front side of the slope. I can't DS well with my Shooting Star either but for totally different reason : my heart just can't stand the thrill! The ship is a beast. On the DS track, it seems to be speaking to me "come on you dumb thumbs, you call it DS? let me show you what DS is ! " and it just goes wheee… wheee… whee… until I pull the plug . Okay, not that many whees, just 2 today, you know, the wind was really strong…

Yes, I am convinced that moldies are much better DS machines than EPPs .

Name: Danny
Topic: DS choice: EPP or molded?
Date: 17 May 2003
Time: 08:23:58

Message

Since my humble microfloh was totalled, I just tried DSing with my old Jazz today... sigh...

I found the jazz was very unstable when across the boundary and at the bottom it showed difficulty in coming back up. Another pilot also tried DS with his JW. It was a little bit better but still not too good in speed retention, and seemed very easy to roll when pulled hard back up...

I might say that molded ship is much better choice for DS, even practicing. I first DS with my microfloh and succeeded with ease.

Maybe some other formie (e.g. bluto) is really much better?

Name: Tsz Ming
Topic: Foam Capronil 120 glider
Date: 17 May 2003
Time: 08:03:30

Message

Dear all fellow pilot

I just have 20 foam Capronil 120, all of you can email me if want to buy one. The price is HK$180 only, more information to modify this plane to RC on link: http://www.rcgroups.com/forums/showthread.php?s=&threadid=114039

Thank, Tsz Ming

Name: fatman
Topic: Suggestion for EPP covering material
Date: 16 May 2003
Time: 21:38:56

Message

Hi there,

I would like to ask what is the good way to do the EPP covering, I mean, in term of the soaring performance.

I heard some people will use the ORACOVER/Ultracoat for the covering, but, is it the same to use some adhesive(packing) tape?

By the way, where can I find these covering material, either ORACOVER/adhesive tape?

Millions thanks,

Name: Charles
Topic: EPP for DS
Date: 16 May 2003
Time: 08:59:24

Message

Is anyone making a bulk order for these machines? Count me in!

Name: KK
Topic: Re: Y C Lui
Date: 16 May 2003
Time: 04:49:32

Message

嘩,是10s 嗎?我都有一隻,但是是直昇機版,至今還很好,沒有事... 但已榮休了,因?前買了10x,等一下我也會買9x w/8301 用來玩"街蛋",D 8301 servo 當然放到直昇機去啦,用靚靚 servo 在-蜀魖S有太大必-n.....呵呵

Name: Y C Lui
Topic: Thanks to KK
Date: 16 May 2003
Time: 03:00:29

Message

咁就真係好消息啦﹗我先前提過既 PCM10 係依家 10X 既起碼前兩代﹐仲係 Z system﹐分解度只有 512﹐同依家 S system 既 1024 分解度無得揮. D款控已停產至少 10 年﹐所以有咁離譜既 bug 我都無投訴.

Name: KK
Topic: Re: Y C Lui
Date: 16 May 2003
Time: 02:43:03

Message

今期是真的,因有其他店已返了貨,你話隻pcm10 有病,請問是否現在的版本?現在賣的10x 是J120FS ,舊一點的是J110FS....你那-茯O否比這些還舊的model? 有點9x 的info. 可去 look look "https://www.cyberheli.com/PCM9X.asp"

Name: Tsz Ming
Topic: 7 feet EPP Queen Bee video uplaod
Date: 15 May 2003
Time: 20:50:35

Message

Dear All

If you want to see some videos of 7 feet Queen Bee, please go the link as follow: http://www.windrider.com.hk/image/image.cfm#2

Thank,

Tsz Ming

Name: CM Cheng
Topic: PCM10 bug
Date: 15 May 2003
Time: 12:46:16

Message

我見過 YC 隻批,震到放係水度一定會游。

Name: Gary
Topic: FF7 Configure help ....
Date: 15 May 2003
Time: 12:21:22

Message

I have a FF7 Tx and have a flag shooting star just brought. This is the first plane for me to have more than two servos installed. I am planning to installed two servos for aileron, two servos for flag and two servos for elevator and rudder.

How I can program it with my FF7? My main problem is for the aileron and flag? I have gone through the FF7 manual, i cannot find any chapter talking about aileron. For elevator and rudder, i think i can use the mixing for V-tail. Please kindly help. Thanks

Name: Y C Lui
Topic: JR 9X ....
Date: 15 May 2003
Time: 10:35:22

Message

-囍n信晒旗老闆呀﹗佢正先夠話我聽今年一月底有貨咯﹐咪一樣拖到依家。-囍n祈望太高呀﹗

不過我都希望呢次係真﹐事關老友先排換-琝甯J JR PCM10 -蜀鱆岫陶n件 bug, 當呢 mixing 開關制 ”啪“ 到某-茞捰X時﹐隻機所有 servos 就會好似貓王咁震。希望 9X -禶|有 D 咁誇張既軟件 bug 啦﹗

Name: KK
Topic: Re: 玻璃仔 about JR 9x
Date: 15 May 2003
Time: 09:35:53

Message

等到啦!!!卓藝旗老版話JR 9x下星期會有貨返,有跟8301 及 es593 servo 兩種... -V包出血啦

Name: Danny
Topic: RDS
Date: 15 May 2003
Time: 09:25:51

Message

Also an example on a composite plane which uses RDS

http://www.ncws.com/rcrock/rds.htm

Name: Danny
Topic: RDS
Date: 15 May 2003
Time: 09:24:27

Message

Also an example on a composite plane which uses RDS

Name: Danny
Topic: To YC - Hiding control horns
Date: 15 May 2003
Time: 09:01:54

Message

Hi YC,

The Gulp method is tricky, but still there are pushrod, server and aileron horns. Just happen that they are located near the centre line, so the fuselege could cover them. So this does not work with delta wings as they don't have fuselege.

The RDS is a different story, as it relies on the rotational movement of the servo, and the rotational motion is converted into aileron's up/down motion near the hinge line.

Still I don't know if this is new techniques or not. Just found it so interesting, and perhaps quite efficient...

Name: Y C Lui
Topic: EPP for DS
Date: 15 May 2003
Time: 08:45:30

Message

Hidding control horns inside the fuselage of formies ? Sure, it's nothing new but the oldest method of connecting servos to ailerons. Pictures are available at

http://www.slopeflyer.com/html/gulp_building.html

Just don't know how the servos can be taken out for service.

60" better for DS? I have no idea at all but the Gulp SR does draw my attention because of it's look. I have seen reports saying that it's faster than the JW but I am not sure whether it is the fastest among EPPs. Will be nice to know.

Cheers,

Y C Lui

Name: Danny
Topic: Rotary Drive System
Date: 15 May 2003
Time: 08:25:51

Message

See also the Rotary Drive System which eliminate any exposed aileron horns / linkages. Very good for lowering Cd and combating. Does anyone know if it's available in Hong Kong?

http://www.proptwisters.org/rds2/index.html

Name: Danny
Topic: EPP for DS
Date: 15 May 2003
Time: 07:33:58

Message

That's great. I know I'm not alone.

For the Gulp DS, I found from the production site and some newsgroup that the control horn can be completely hidden inside the wing / fuselege. I wonder if similar construct could be applied to other formies??

http://www.stevedrake.com/gulp_ds.htm

Also, the M60 and Gulp are 60". I think they would be more stable for DSing when rolling through the separation, wouldn't they?

Name: Y C Lui
Topic: EPP for DS
Date: 15 May 2003
Time: 07:16:46

Message

Hi Danny,

One more model for your consideration, the Electron - 54 http://www.tuffplanes.com/Products_List.html According to a recent post in RCSE, it is even faster than the Bluto.

I am practicing DS with my shabby Shooting Star which I found to be more "cooperative" than my EPP Me163. The Me163 is fast but it loses so much energy in turning that sometimes it got stuck on the downwind side of the slope . The same problem has been reported by Mak with his JW. Perhaps DS experts like Stanley can give more advices here.

Anyway, I am also interested in getting a fast EPP for man-on-man EPP pylon racing in case the club is going to organize such activities in the future. May be we can have a joint order if we have our eyes on the same manufacturer.

Happy soaring,

Y C Lui

Name: Danny
Topic: EPP for DS
Date: 15 May 2003
Time: 05:05:12

Message

想買隻EPP練DS, 比你會揀乜?

1) JW 2) Bluto 56" 3) M60 (Moth 60", 4 servos, recorded at 116mph) 4) Gulp DS (最靚仔)

Name: Y C Lui
Topic: hand catching a 3 meter glider
Date: 14 May 2003
Time: 21:56:51

Message

Check this out ....

http://www.f3b.no/bilder/video/pikelaunch.avi

Perhaps We can ask Master Leung to do it again with his Sting ... inverted ?

Name: Y C Lui
Topic: Tai Chi by Joe Wurts
Date: 14 May 2003
Time: 21:41:54

Message

Parker Mountain 睇落好似放大左但光晒頭既-蜆Z山 DS 位。JW 將隻機咁樣 land 落無草既硬地上-情M-曭彊\肉-囍蚳狀J呢﹖

Name: Danny
Topic: Tai Chi by Joe Wurts
Date: 14 May 2003
Time: 10:20:59

Message

Just found this DS movie

http://www.houseofthud.com/rc/dynamic_soaring.ram

What a high hand. Not necessary a circle, but any random shape / path. Is it Tai Chi (no format is better than having a format)? hahaha

Name: Willy
Topic: 石澳
Date: 14 May 2003
Time: 07:46:39

Message

我1997年年尾第一次去,咁多年來,-躟控齯s路有明顯收窄。可能多-偃囧苤B行山人士行,變相開路。

呢-茼魽A來來去去,都鬗p貓三四。上週日,我-落鴞豕漶B三時才有人來,「占士」(-?Multiplex Joker)及黃靈等。

Name: Y C  Lui
Topic: 石澳
Date: 14 May 2003
Time: 05:21:09

Message

如果搞有番禁上下規模既比賽就一定-n有特別交通安排。-?茼菑v喳車去就無可能架啦。約埋幾-?攭行山既 F3F 發燒友去劈番幾轉就或者可以。

話時話石澳呢-茪j場好似-曮Y好多人去-號L。有D玩左好-@既-舅苀ㄧ雈憧h過。比起十年前﹐上山條路窄左好多﹐依家兩邊D樹生晒出黎﹐幾乎搵-礸f條路禁滯。我隻 mold 機-??D 樹枝刮花晒。果日我-n打電話問阿忠兩次先至識路上去。碰到有-茠?臛熊M喳著 Stanley -蚨?隄J料嘗試一-茪H摸上去。好彩佢撞到我﹐如果-曮Y佢實得-茼璁r。下次去都係帶埋把鉸剪開路較?陣。

Name: Willy
Topic: 石澳
Date: 14 May 2003
Time: 02:43:55

Message

以前爆滿後仲夾硬泊,即使冇阻人,聽「肥仔文」、「長毛偉」佢]講,差人照樣抄。

但近呢幾年,每逢假日,齯H一樣鶣袪襠搌y,包括燒烤人士,滑翔機及-偃囧苤C我-屭?\]蠷-楓謎上有告票。

但-荌惆拿廱搚荂A你]比賽又咁多人、車,點泊呀?

Name: Y C Lui
Topic: 石澳泊車問題
Date: 14 May 2003
Time: 00:16:41

Message

石澳是小弟最喜愛的-蒂瘜鶡a﹐論升力及-毀滿M石澳比馬鞍山更優越﹐極有可能是下次再創本地 F3F 記錄的地方。唯該處泊車非常有--﹐小弟經常被-錏車泊在停車場內的合法泊車位外。如果不阻礙其它車輛進出﹐警察會否網開一-?﹖有沒有-舅芫縝b此收到“牛肉乾” ?

Name: Ah Pong
Topic: something wrong
Date: 13 May 2003
Time: 12:43:13

Message

Hey guys, Please see the follow up made by Danny, he called the girl at 1 O'clock in the morning and learned that she was OK!! (the girl has a boyfriend, and Danny has GF as well) Therefore, I guess the clock in this WEB page is inaccurated, or Danny has a naughtly mind.......

happy soaring, Edmond

Name: Willy
Topic: Cape Collinson
Date: 13 May 2003
Time: 09:29:06

Message

The slope Robert Yan referred to is to the south of the hilltop marked in a red cross by Stanley. The hilltop so marked by Stanley is near to the road but completely inaccessible. It's a dense bushland there, right up to that hilltop.

I flew in the one mentioned by Robert extensively in late 1999 when I couldn't spare the time to other places. Good lift, clear view, a pavilion for shelter and sitting but marginal landing area. Hazards like scattered rocks and thick vegetation further down the slope. Avoid southwesterly wind at all costs. Extreme turbulence.

I eventually walked further up to a slope west of the pavilion and overlooking it. Better landing area. Both Easterly and Northernly potential. But small trees were planted later. Don't know how it looks now as haven't been back since that time.

Name: Y C Lui
Topic: Reply to Fatman : thin laminating epoxy resin
Date: 13 May 2003
Time: 08:06:17

Message

I am yet to identify a good local supply of laminating epoxy resin but the followings are acceptable :

a) West System (http://www.westsystem.com/ ) #105 resin + #206 hardener. Very strong but the viscosity is a bit on the high side. Takes about 24 hours to cure. Available from Piercey Marine ( Tel. 27914106, email : pmltd@attglobal.net ) which is a yacht supplies shop inside the 西貢白沙灣游艇會 at the end of Che Keng Tuk Rd. If you are not the member of the yacht club, you have to call them before you go and the lady of the shop will ask the security guard to let you in. You can park your car right in front of the shop.

b) #1101 epoxy from 國生行( opposite to the Sam Shui Po police station at the Lai Chi Kok Rd ). Very easy to work with due to it’s low viscosity but it takes about 2 to 3 days to cure depending on the ambient temperature. As the documentation about this resin is unavailable, I have gone through a painful process to establish the correct mixing ratio which is resin : hardner = 3 : 1 by WEIGHT.

A few words of caution here : epoxy is not as forgiving as polyester to variations in resin-to-hardener ratio so it’s essential that the mixing ratio is accurate or the cured resin will either be very soft or brittle. For this purpose, you will need an electronic scale with 0.1 gram resolution .

Hope it helps,

Y C Lui

Name: Robert Yan
Topic: Cape Collinson
Date: 13 May 2003
Time: 06:23:45

Message

I have flown in Cape Collinson a few times. The slope is good for NE and E. There are not many slopes in HK/KWL/NT that are good for NE. The slope is in front of the most popular slope of Shek-O but easier to get to. We call this slope "6 and half" because when we measured the wind strength on a good flying day, the wind meter registered only 6.5 mph. The climb takes about 15 min from the place of parking below.

Name: Stanley Chan
Topic: Possible flying sites
Date: 13 May 2003
Time: 05:18:10

Message

Hi, I have looked at the map to find the flying site in Wo Hop Shek mentioned by Patrick. Here is the map

http://www.centamap.com/scripts/esriMap.dll?name=cent&cx=833210.623631187&cy=837360.381675155&zm=4&mx=833210.623631187&my=837360.381675155&ms=2&sx=&sy=&sl=&ss=0&ly=&vm=&lb=&lp=&mt=&ts=0&ca=0

It is suitable for ESE wind. Actually the slope is overlooking the valley spent between Wo Hop Shek and Cloudy hill. I noticed the slope once I visited Cloudy hill month ago but think that the narrow valley below could not possible generate good lift for this slope. So if it is flyable confirmed by Patrick, I wonder that there is another nearby slope at

http://www.centamap.com/scripts/esriMap.dll?name=cent&cx=831890.623631187&cy=836360.381675155&zm=5&mx=831890.623631187&my=836360.381675155&ms=2&sx=&sy=&sl=&ss=0&ly=&vm=&lb=&lp=&mt=&ts=0&ca=0

with a closer view here

http://www.centamap.com/scripts/esriMap.dll?name=cent&cx=831890.623631187&cy=836360.381675155&zm=4&mx=831890.623631187&my=836360.381675155&ms=2&sx=&sy=&sl=&ss=0&ly=&vm=&lb=&lp=&mt=&ts=0&ca=0

This slope should be better because the valley below is wider and the easterly wind seems to be concentrating due to the landscape around.

Also, I notice from the map another slope in Hong Kong island near Cape Collinson

http://www.centamap.com/scripts/esriMap.dll?name=cent&cx=844130.623631187&cy=813228.381675155&zm=5&mx=844130.623631187&my=813228.381675155&ms=2&sx=&sy=&sl=&ss=0&ly=&vm=&lb=&lp=&mt=&ts=0&ca=0

with a closer view at

http://www.centamap.com/scripts/esriMap.dll?name=cent&cx=844130.623631187&cy=813228.381675155&zm=4&mx=844130.623631187&my=813228.381675155&ms=2&sx=&sy=&sl=&ss=0&ly=&vm=&lb=&lp=&mt=&ts=0&ca=0

This slope is easy accessible and if it is flyable that will be perfect for lazy guys like us.

Are there any pilots who have visited these slope before? Any comment?

Stanley

Name: Willy
Topic: 霧鎖
Date: 13 May 2003
Time: 03:14:43

Message

幾年前「阿偉」騿m扎山道》示範過,佢控蹌鱆騅Z離在自己頭上或-惚e狂打圈,因為距離好近,所以即使大霧,點都睇到蹌驉C

Name: Stanley Chan
Topic: What to do if lose slight of the plane
Date: 13 May 2003
Time: 02:08:53

Message

Well, I guess it is a difficult question. Most pilots will be panic and just don't know what to do next. In my experience, I will see where the plane was last spotted, if there are no onlookers around, I will pull up the elevator and apply full aileron to the left or right so that the plane will spiral down. The reason is that the plane will have minimum speed on crashing that will reduce the risk of serious injure in case it hits anyone and also reduce the damage incurred on the plane.

I am not sure this is the best handling because there are so many environmental factors needed to consider.

Any other views from fellow pilots?

Name: Danny
Topic: Sat accident followup
Date: 13 May 2003
Time: 01:05:09

Message

Just called the girl. She is recovering nicely and can walk and jump :) Thanks god.

Name: Danny
Topic: Saturday accident
Date: 13 May 2003
Time: 00:58:41

Message

Hi all,

First of all, I would like to say thanks to all of you, especially ah Pong for his generous offering of help.

On Sat, I flied as usual on Fei Ngo Shan east face. After Stanley and others finished practicing F3F, I moved furtherer towards the small hill top and flied for sometimes. Suddenly, the mist came up and I lost-sight the plane. After around 6~7 seconds, I heard the plane's crashing sound. I ran down and noticed a girl was hit by the plane on her foot (yes foot, not leg, what a luck).

I and my friend sent her to the hospital. After checking and x-rayed, the doctor said she was ok. She just agreed that was an accident and accepted my apology. Anyway, I compensated her in someways, and wished her recover soon.

It was really an unhappy experience. I didn't do any dangerous thing, just level circling, but still hurt someone. I should have gone for an emergency-landing...

Actually, what should be done when we lost sight of the plane? Shout to alert others? Should I touch the controls without knowing the plane's location and orientation? Hope anyone give some advice so that we could avoid any bad accident from happening...

Name: Fatman
Topic: thin laminating epoxy resin
Date: 13 May 2003
Time: 00:11:08

Message

Hi there,

Can anyone tell me where I can buy the subject epoxy at HK? I would like to use it to glue for the carbon cloth and fibre glass cloth. If not, can anyone suggest what I can replace for it?

Thanks,

Name: Tsz Ming
Topic: What happen on Saturday this time?
Date: 12 May 2003
Time: 15:02:56

Message

What happen on Saturday this time? who is the pilot?

Name: Y C Lui
Topic: accidents involving model gliders
Date: 12 May 2003
Time: 09:56:12

Message

I have heard about that accident too. Hope the girl is OK…..

About two years ago, I ran my Yellow Arrow into an onlooker's face at the Clear Water Bay and I was just dame fortunate that the guy just had the skin near the mouth scratched. I took him to the 將-x澳 hospital where he was discharged after simple treatment and no stitching was required . I drove him home, apologized again and returned home with a heavy heart.

Always put safety ahead of anything else. We can easily recover from the grief of crashing a model but it will just take one single accident to ground us forever.

Safe and happy soaring,

Y C Lui

Name: Ah Pong
Topic: to Danny
Date: 12 May 2003
Time: 09:08:19

Message

What was the result on Saturday? Was the girl OK after medical treatment? Wish you and the girl fine.

Regards, Edmond.

Name: Ah Pong
Topic: to Danny
Date: 12 May 2003
Time: 09:06:52

Message

What was the result on Saturday? Was the girl OK after medical treatment? Wish you and the girl fine.

Regards, Edmond.

Name: Stanley Tam
Topic: 黃靈
Date: 11 May 2003
Time: 23:21:13

Message

Willy,

多謝回應.雖然本人?處外國(美國)但非常關心-輕銂熒け噢鰿※?你的手電是否9433xxxx ? 我call你再談.

Name: Stanley Chan
Topic: 和合石放機
Date: 11 May 2003
Time: 10:06:11

Message

Patrick,

是不是在靈龕奄隔離那-?惘V粉?多草的斜坡,嘩如果稍一不慎,撞親先人墓地就不吉利是。有機會都想去試試這-荓蚸Y。

Name: Y C Lui
Topic: 誓死-囓庣q腦
Date: 11 May 2003
Time: 08:07:35

Message

滑翔機友真特別﹐-?茬ㄕn有性格。-n搞-虓|就晒禁多種性格真係-灡e易。不過我都同意”監“人地用電腦-曮Y幾好﹐滑翔機會D活動-羉滮蚗W密﹐用郵寄通知應該-禶|好麻煩。

Name: Willy
Topic: 黃靈
Date: 11 May 2003
Time: 07:03:08

Message

Stanley Tam,

我呢兩日都-腹m石澳》,鬗s上見到黃靈,同佢提起你魒鼽懭A珅\收-屭?虓|麍※妘q知,我提議佢上網睇,及開-荑ebmail,但佢話佢冇用電腦,佢亦誓死-禶|為了接收-虓|的活動訊息而去用電腦。佢堅持-虓|-n郵寄籪禤-硱\。

Name: Patrick Lam
Topic: 和合石放機
Date: 11 May 2003
Time: 05:21:46

Message

吾知有冇人去過粉?和合石放機?今日我到和記其中一-荌邪藽銂漱p山坡,升力不錯,草又長。

Name: 玻璃仔
Topic: 多謝你-岵_^
Date: 10 May 2003
Time: 14:02:12

Message

吾該師父梁,KK-籉P大家,我收到啦,雖則我今日無請教大家師父問問題,但我有留心你-怚恞銊朴P子多D,我知道我應該怎樣選擇買我第一支發射器啦,多謝大家,小弟有鬙媦訄,吾該曬,Thank ^_^

Name: 師父梁
Topic: 玻璃仔
Date: 10 May 2003
Time: 13:14:22

Message

看見你的積極'熱忱'進取及不恥下問,不得不幫你一把o你-n買遙控器的話不用多想多揀選啦o-漸?n問自己是不是一-茪T分鐘熱度的人,如果不是的話,而且又有能力就買一-荌炊@點MODEL的遙控器o而且-n買一-茼h人用的品牌,因為大家可以互用配件及設定都多0的人識o而且因市場大價錢就自然?同多啦,就算-n賣番出來都容易0的啦o講到這裡玻璃仔你收到沒有o 拜拜!!

Name: KK
Topic: Re:玻璃仔
Date: 10 May 2003
Time: 13:10:59

Message

-n用同牌子的控才有師父功能,9x 的價錢由HK$3xxx起,-n睇跟那隻servo

Name: 玻璃仔
Topic: 吾該你-怮?和指點小弟呀^_^
Date: 10 May 2003
Time: 10:38:28

Message

Danny,Willy-穭竣擏琱S去大清水睇放-蜀?真係好精彩,不同機種都有,還應識到陳伯,雖然我今次冇幫襯佢,但佢好nice.今次我無主動請教D機師,因今日都好多學生問,吾想阻住佢地,不過好多機師都好nice,途人問炡ㄛ陞L解答,下次再去希望應識到你-怜?^_^還想問一問,如果月尾JR-PCM9X有貨的話,大約係咩價錢呢?同想問師父線這條東西,如果我請教-茼鴟v父係JR發射器,而我係Futaba發射器,請問這樣得吾得呢?還是-n找-茼P牌子發射器黈v父來用條師父線呢?定話師父線係無分牌子,衹-n-茧o射器有師父線這-茈\能就可以用到這條師父線教新手發遙控-蜀?麻煩大家回覆,吾該,Thank.^_^

Name: Willy
Topic: 陳伯
Date: 09 May 2003
Time: 23:03:05

Message

佢電話9626 3809。

Name: Danny
Topic: To - 玻璃仔
Date: 09 May 2003
Time: 21:46:59

Message

不論六或日都會有好多機師在那裡.

不過, 我現在只得纖維機, 是不適合初學者的. 請問其他師傅有沒有EPP機可-? 我有 spare 發射和師傅線. 或許, 我-怚i搞-茠儩ヰ怜V練日?

Name: 玻璃仔
Topic: Hi Willy-?
Date: 09 May 2003
Time: 14:22:11

Message

我點樣找到陳伯呢?清水灣行車路邊,還是清水灣山頂?他通常什洫伅”,你說假日係?今天星期六還是明天星期日呢?請回覆,吾該.^_^

Name: Willy
Topic: 初學機
Date: 09 May 2003
Time: 10:42:59

Message

問「陳伯」買隻Angel或「海鷗」,連控(巳裝好),好似送俚一堂教授。

假日「清水灣」場,吹東-楚A陳伯必到。

Name: 玻璃仔
Topic: Hi Danny-?明天你-怚h大清.大約什麼時間呢?
Date: 09 May 2003
Time: 10:13:25

Message

到時怎樣找到你-?你通常會起大清什泵鼽m,請回覆.^_^吾該.

Name: Y C Lui
Topic: reply to Ricky Lee - models for beginners
Date: 09 May 2003
Time: 08:38:01

Message

It's a rather difficult question to answer. I have once recommended EPP flying wings to a beginner because they are relatively easy to fly, durable and inexpensive but his response was "No... they look like flying underwear !".

So instead of recommending any specific model, I would just encourage you to go to the slope, talk to the guys, see how different models fly and make up your own mind.

The wind will be strong easterly in the coming Saturday and Sunday so the sky over the Clear Water Bay and Fei Ngo Shan will be crowded with gliders. Just don't be shy and ask. There are a lot of nice guys in our community and some of them may even let you try out their models !

Good Luck,

Y C Lui

Name: ricky lee
Topic: what kind of airplane do you recommend for a elementary person?
Date: 09 May 2003
Time: 08:12:00

Message

Appreciated if anyone could recommend something good for a new comer for this sport. Brand new or 2nd hand, ok for me.

thks

Name: Stanley
Topic: Prodij V tail
Date: 09 May 2003
Time: 00:09:43

Message

Hi Nick,

If I remember correctly, Prodij tail boom was made to have a bit positive incidence so it is better to made a balsa v-shape cradle for the v-tail to sit then you can tune the incidence angle by sanding later after test flown it. One practical advise - since the v-tail is made of soft balsa wood and its shape will change as time goes by, I would recommend you to strengthen it with a thinned layer of Epoxy or CA. Happy soaring!

Name: Willy
Topic: 馬鞍山
Date: 08 May 2003
Time: 23:28:20

Message

Force 4 to 5 Easterly wind forecasted for this Sat and Sunday, anyone going to this site?

Name: Danny
Topic: To - 玻璃仔
Date: 08 May 2003
Time: 23:19:02

Message

Hi 玻璃仔,

其實, 最好體驗這活動的方法, 就是到實地觀察. 我第一次都是在-葬Z山遇到Stanley,師傅梁同亞邦. 他-抯鬗艀a-犮X一架Eraser給我試玩, 更拉了師傅線指導我. 他-怐獐鬗葖? 令我衷心感激, 更令我於短短十分鐘內, 了解和愛上了這活動.

行動吧, 明天到大清, 親?感受, 你便會知道滑翔翼的無--樂趣.

Name: 玻璃仔
Topic: -漸衷心多謝大家意見^_^
Date: 08 May 2003
Time: 13:19:20

Message

今晚我睇左好多意見,所有D師父和朋友都對小弟真係吾話得,各有各儮D理,有D師父企起我銀包立場去U,怕我玩玩鴽^玩,曬錢買支禁貴齔o射器,就吾直得,有D朋友就站起還掂你(?玻璃仔)都話會長遠去玩,都吾好曬果小小錢,直頭買支貴小小齔o射器,(在功能上和動作先做到)長遠-p都有蚍,小弟睇完今晚意見真係有D感動,-?茬ㄨ鴽琣n好,在此衷心多謝你-?小弟-藇璾問問大家,有冇師父或朋友係住起葵涌區呢?因小弟今晚返屋企停車場時,見到一架黑色翵p家車,當時果位-?竷縝b執拾車籠,我見到他很多遙控-蜀鬫b車內,多到我經過佢架私家車時,-咿?髐@隻遙控-蜀鬫b車頂添,當時我真係好想上前問他,我的問題,但到最後都冇問佢,我就走鱁,因我怕他鬧我,行開啦,我吾得閒呀.所以,如果有人在葵涌區住,可否相約飲茶交-茠B友呢?就算冇,遠小小都吾係問題,請回覆小弟.多謝大家.^_^

Name: Nick
Topic: Prodij
Date: 08 May 2003
Time: 13:08:48

Message

Thanks YC and Stanley

So does it mean it's safe to build the Prodij V-tail just level to the flat bed on the tail-boom?? Yes the Ailerons are full span (that's the way it came on my kit) and I also plan to mix camber and reflex into the throttle stick, will need advice when I get there.

Name: Stanley Chan
Topic: Queen Bee
Date: 08 May 2003
Time: 12:45:56

Message

Tsz Ming,

You Bees are already populating our slopes. I wonder if there are Queen Bees as well, can we survive from being STUNG!

Just joking! The pictures look cool.

Cheers

Name: Stanley Chan
Topic: Prodij incidence angle
Date: 08 May 2003
Time: 12:10:40

Message

Hi Nick,

To my experience on Prodij, I set it on zero incidence and adjust the CG so that there is no pitching on high speed. If you set it correctly, Prodij really moves fast and can have a wide range of cruising speeds for which no elevator control is needed for maintaining level flight. Also if you cut the ailerons all the way to the wing tips, the ailerons can also be used as speed flaps, i.e., camber change. French guys like to couple the throttle control with camber change - they call it 3 degree control. If you are interested in this mode of extra control, the V-tail incidence is better set to zero.

Name: KK
Topic: Re: 玻璃仔
Date: 08 May 2003
Time: 11:46:57

Message

控不用多一支好的控已十分夠用,有一些朋友說先買一些?控(2ch - 4ch)去學-腹A冇錯價錢較?,但功能十分有--不-n說用在直昇機上連一些比較中檔的-蜀髐]用不上,所以不建議買.... 6ch computer 控會好點,多數的-蜀鰴ㄔi以了,但說到直昇機只可說是入-怴A用來學機都只是可以說夠用,上天做動作免問,所以都是不建議買,好了,最後的是8-9ch 的,-蜀?5%以上都可以了,直昇機可以說全部都可以了...所以如果錢不是太大問題的話買8-9ch 的。有人可能說6ch 和8-9ch只是差兩-翃h 但價錢差不多-n多50%好像不-得,其實不只是"買"多兩-翃h,-n買的是功能,有些功能(但又是必須的)可以準確設定,準確是十分-?n的,做動作不美,除自已的功力,控的準確性是一-??n因數

Name: Y C Lui
Topic: Reply to Nick - tail incidence
Date: 08 May 2003
Time: 07:38:09

Message

Hi Nick,

You read really fast ! Sherman Knight’s article is so long and full of details that it has taken me many hours to understand it.

You are right that the purpose of adjusting the tail incidence is to minimize the drag but the optimal incidence of the tail is NOT that of the wing but that makes the model fly level without applying any elevator trim ( ie. The elevator is parallel to the stabilizer ) . Furthermore, this optimal incidence varies with the CG location.

You are also right that the CG location affects the sensitivity of elevator control but that’s NOT what we slopers are going after. This may be a concern of the thermal guys as their birds often fly very close to the stalling speed and if the CG is too far forward, the elevator control will become very sluggish.

On the slope, we are more concerned about the pitching stability. A plane with CG placed too far forward will exhibit strong pitching stability. If the plane is taken into a dive, it will have a tendency to pitch up as speed is built up and thereby slow itself down automatically. Masters in Hongkong describe such behavior as “彈頭“ and whether you like it or not is a matter of personal taste. I don’t like it myself.

If the CG location is too far to the aft, the plane will be very unstable around the pitching axis. Once it runs into a dive, the plane will go steeper and steeper by itself until up elevator is applied . Masters in Hongkong call such behaviour “追” which I don’t think any pilot will like.

Most pilots prefer setting the CG to achieve neutral pitching stability, i.e. the plane will neither pitch up nor pitch down by itself but just maintain the original diving angle. Neutral stability is almost a must if you like doing aerobatics as the flying track is more predictable and less elevator control is needed when flying inverted.

Sorry for the long post but hope it helps.

Happy soaring,

Y C Lui

Name: Willy
Topic: 2Ch 控
Date: 08 May 2003
Time: 04:39:19

Message

「玻璃仔」話,-n一套控,既可玩直昇機,又可玩-蜀驉A2Ch 控實-魙i啦。

我想佢最基本的-n求,是 Futaba 的 6 channel 電腦控,該型號好似巳包括「-蜀鷐狾﹛v、「滑翔機模式」及「直昇機模式」的軟件,初學玩滑翔機(甚至直昇機)應巳夠用有餘,價錢又比 8 channel 控便宜。他日玩熟後再升級去 8/9 channel 都未遲,舊 6 channel 可留作後備之用。

Name: CM Cheng
Topic: to "Glass Boy"
Date: 07 May 2003
Time: 23:04:20

Message

讓我來翻譯! Nick 話:很抱歉我不懂中文輸入,我的意思是,-頞}始你應買一套?價的搖控,看自己是否喜歡這活動,真是喜歡的話才買一套高級的搖控,不喜歡,就只付出了少許金錢。

十分讚同Nick 君的意見,我想一套AM2CH 加一隻EPP 是最適合初學者的,2CH控只是HKD300左右,將來你超上癮時,買的接收機,伺服等都?超過這價錢了! 這星期六.日吹東-?不如到凊水彎,-蜆Z山看看別人放-蜀?再決定買什麼器材,你可能會另有想法呢。

Name: Tsz Ming
Topic: Queen Bee finished
Date: 07 May 2003
Time: 22:20:58

Message

Dear All

My Queen Bee just finished, please go: http://www.rcgroups.com/forums/showthread.php?s=&threadid=115174&perpage=15&pagenumber=1 Any idea or suggestion?

Tsz Ming

Name: Nick
Topic: to "Glass Boy"
Date: 07 May 2003
Time: 18:46:52

Message

Sorry I don't know how to type Chinese. But what I mean is, yes you SHOULD start with a cheap radio, just to see if you like the sport. If you decide that you do like it, then go ahead and get a top-of-the line radio. If you don't like it, all you will be wasting is that cheap radio you first bought. Hope this clarifies.

Name: 玻璃仔
Topic: KK -?籈^該你^_^
Date: 07 May 2003
Time: 15:17:36

Message

我是好有興趣玩遙控模型(除在玩車,因興趣吾係禁大),我都想在此問你多小小問題,其實遙控-蜀魕M遙控直升機我都有興趣想玩,不過我是新入行玩,除在一定買支好的發射器之外,都會選擇玩-蜀鷙椄O直升機先,在我感覺上直升機會難玩D和複習些,價錢同零件或配備都會多一點,對我新仔黎講,-t擔太大,我想我會選擇玩-蜀鬙?(?滑翔-荌曳K)因零件配備金錢都小D,如撞壞,-蒂b出去返吾到來,都無禁肉痛,我都是想由底學起,掌握到一定的技術,然後先購買貴一些-蜀魕峈膜刉魖茠?你話係吾係呢?還是我想錯呀>_<,不過吾係一支發射器可以玩齊遙控-蜀魕M遙控直升機麉,定係當玩遙控-蜀鰹伝N-n買支-蜀鰽o射器,玩直升機時又-n買另一支發射器,到現在我-咫w為買支貴貴地齔o射器可以玩齊兩樣炰K.係吾係我想錯左呢?請回覆,請繼續比意見同指點小弟迷樽.

Name: Nick
Topic: V-tail incidence
Date: 07 May 2003
Time: 13:31:31

Message

Hi YC,

I have gone through those articles but still don't understand. I understand how the CG would affect sensitivity, but not the v-tail incidence. I was understand the impression that it would be best to set the v-tail incidence angel close to zero to minimize drag and adjust elevator sensitivity by adjusting the CG. Am I missing something??

Thanks.

Name: KK
Topic: Re: 玻璃仔 多謝你揀遙控師父^_^
Date: 07 May 2003
Time: 13:24:15

Message

去雷達行找 Tomy 把,雷記是代理Futaba的所以他可解答你所有問題.....但由於雷記只賣Futaba 所以只會說Futaba 的好話、沒法啦打工嘛......9Z WC2 是Futaba 的頂級remote 好貴(約HK$8500)但又好難用。話時話你都未答是會玩-蜀魕w直昇機喎,如你兩樣都玩的話最好買-茠蔽@機版本的remote

Name: Y C Lui
Topic: 二手遙控
Date: 07 May 2003
Time: 12:06:16

Message

小弟也曾嘗試過。。。。

今年年初小弟曾在這裡的交易廣場登了一則徵求二手JR 3810 發射機的訊息但至今未收到任何回應。曾經打算索性向卓藝買一套全新的JR 3810 但老闆阿琪的忠告是 ”梗係-囍n啦﹗9X 都就快出咯﹐梗係買新款啦﹗“ 故又放棄了該念頭。

眼看手頭上的古董遙控 JR Apex Computer 不單未能提供F3F賽機-n求的控制功能如 snap flap, crow, reflex 等﹐就連普通-蜂l-n求的 Elevon trim mixing 也辦不到﹐便和一位老朋友商討把小弟擱置多年的 PCM10 直昇機版和老友的 PCM10 -蜀鱆岩瘣哄C不料朋友一口答應﹐問題方得以暫時解決。但 PCM10始終是前一代的產品﹐功能比 9X 遜色得多。希望 9X 盡快到港吧﹗

Name: Willy
Topic: 二手遙控
Date: 07 May 2003
Time: 10:02:23

Message

既然 JR、Futaba 都-餔鉥琚A好多舊有用家會樂意出售手上的 8 頻道舊控,你不如在此版或 Buy/Sell 版留言話想買部二手控,我想一千元內巳有交易。

Name: 玻璃仔
Topic: 多謝你揀遙控師父^_^
Date: 07 May 2003
Time: 07:36:14

Message

多謝你比我睇這網業,真係好正,我見到一支9Z WC2發射器,係吾係新款呀?是不是-n好多錢?同去雷達行找邊位-?籉nD呢?因我自知是-荌暋D青年,-n些時間來應識,我怕左住人地做生意.我都怕比人責備呀>_<多謝大家比小弟意見,請繼續,吾該.

Name: 揀遙控
Topic: Y C Lui
Date: 07 May 2003
Time: 06:34:43

Message

-n多師傅用就一定係 Futaba 莫屬啦﹗Futaba 各型號中似乎以 9C (http://www.futabarc.com/radios/futj85.html)最人氣。9C 可再細分幾-茷爰飽M9CAP 係其中一款。想知多D, 去雷達行問問啦。吾洗怕醜架﹗

Name: Y C Lui
Topic: Reply to Nick : V-tail incidence
Date: 07 May 2003
Time: 06:11:20

Message

Hi Nick,

The incident angle of the tail is closely related to the C.G. location the setting of which depends on the kind of handling characteristics you like so it’s difficult to say what incident angle is “right”for your Prodij.

For some of my models such as the mini Corado and Omega HLG, the incident angle set by the manufacturer were too conservative ( i.e. model being too stable ) and I needed to increase the incident angle by shimming the leading edge of the tail to tune the model to my personal taste. For the others such as the Nemesis and the Pike WR, the factory settings are just right for me.

To set the CG and tail of your Prodij, you may try the procedures described in the following articles. You may be required to enter a password before some of these documents can be opened but just ignore it by clicking“Cancel” .

http://www.reddata.com/sass/soaring_info/techdocs/Trimming%20Your%20Model%20Sailplane%20Part%201.doc

http://www.reddata.com/sass/soaring_info/techdocs/TRIMMING%20YOUR%20MODEL%20SAILPLANE%20PART%20II.doc

http://www.reddata.com/sass/soaring_info/techdocs/trimming_your_sailplane.htm

http://www.polecataero.com/articles/cg_art.shtml

Hope it helps,

Y C Lui

Name: 玻璃仔
Topic: -漸多謝你呀 Nick -?艩N見 ^_^
Date: 07 May 2003
Time: 04:36:22

Message

雖然我D-^文程度很差,但你比我的感覺是不是話JR-8310和Futaba的FF9,不過吾明9CAP什炤N思,都可以接受,如果-n買的話都是選購的名單,你還指點小弟千其吾好買D?價的產品,最主-n係功能小,如有興趣玩遙控模型,就不防添貴小小價錢買支好的發射器,如買支?的發射器,因為當自己技術提高左小小,想玩多小小花式時(?遙控-蜀?就-n買過另一支發射器,長遠黎講,就會曬錢,我吾知你意思係吾係這樣,不過好多謝你呀,上一次忘記左KK-?籉^應,我?邊是無朋友玩開這遙控模型-蜀鱆捧N,因我毫無頭水先在這婼訇苳j家.同時我在睇遙控-蜀鷚艩~-?有一欄講師父線(當新手入行玩時,可以用條師父線連接起?邊師父的發射器上,萬一有事,師父都可以即時幫手,減低損失)所以我想買支師父用多的發射器,希望有事都用條師父線救命,-咻訝 C Lui-??JR-9X係吾係真係好的選擇,如果係真的話,我會聽你-抶僆RJR-9X,如果吾係真係太長時間的話,最多我約你-怚h機場,請教鴽A-妵技術都得,最多我請你飲下午茶,不過吾好禁貴wow.千其吾好吾利我呀.死啦(?玻璃仔)Nick-??你在Time:03:03:22的Massage係吾係關我事,我又-n查字典La.>_<請多D師父給我意見,多謝大家.

Name: Nick
Topic: V-tail incidence
Date: 07 May 2003
Time: 03:03:22

Message

I'm currently building a Prodij. One question I have is, is it generally safe to build the v-tail incidence angle equal to the main wing? I wish Aeromod could just take an extra step and mold the v-tail saddle into the tail-boom.

Any other advice on building the Prodij? Thanks.

Name: Nick
Topic: JR vs Futaba
Date: 07 May 2003
Time: 02:55:28

Message

I started slope soaring in US about a year ago and have been using JR ever since. The only reason for my choice is because the Futaba feels more like plastic and I like the metal feel of the JR. On the other hand, some people might like the plastic feel of Futaba because it's lighter and slimmer. I was choosing between the JR 8103 (us designation of 3810) and 9CAP (FF9) and ended up with the JR because there was a really good package on the internet. So I agree with the rest of the masters, its mostly personal preference.

One thing I do suggest is, you should start of with the cheapest radio you can get, see if you really like the hobby and if you do, just get one of the best radios (3810, FF9 etc). Don't waste your money on mid-level radios because you'll outgrow them really soon. On the other hand if you don't like the sport, you won't waste a big investment.

Name: 玻璃仔
Topic: 對吾住,Y C Lui 提起你的傷心事,不過多謝你的意見^_^
Date: 06 May 2003
Time: 15:59:14

Message

Thank You 希望再有多D師父比小弟買邊款牌子和型號發射器的意見,多謝大家^_^

Name: Y C  Lui
Topic: JR 還是 Futaba ?
Date: 06 May 2003
Time: 12:43:51

Message

KK 說得對。JR 和 Futaba 其實並無-咫j分別﹐就好像 Panasonic 和 Sony 或 Honda 和 Toyota 一樣。兩者皆是馳名品牌﹐品質及功能均有一定保證。如果玻璃仔真是那麼心急的話﹐那我看你還是不-n等 JR 的 9X 了。卓藝的老闆阿琪曾告訴我 9X 今年一月底便到貨但一拖再拖﹐最新的到貨日期是本月25號。但如 KK 的情報屬實的話﹐我看還-n等好一會呢﹗

提起 JR 和 Futaba, 也許小弟可以和大家分享我的一些經歷。十多年前的事了﹐現在恐怕已沒有太大的參考價-。我擁有的第一套“高檔”遙控器是 Futaba 的 1024 PCM 直昇機版, 鋁合金外殼﹐大液晶體顯示屏﹐樣子酷極了﹗用來-舅p弟當年的 Hirobo 46級 BBC Stock 直昇機﹐感覺就好像駕駛寶馬或?治跑車一樣。但不料某天﹐遙控系統突然無故 ”lock 死”, 直昇機在小弟大約兩米前由懸浮狀態開始慢動作橫滾直至 ”訓“ 落地-情M漂亮的黑白斑馬圖案主槳﹐花了一整-茯P期噴油的 ”鹹魚頭“ 頭罩就在小弟眼前粉碎﹗Futaba ? 免了﹗

及後小弟轉用了JR 的 Apex Computer -蜀鱆岸?PCM10 直昇機版﹐感覺很好。發射機的菜單及開關制布局比 Futaba 的合理和易用但最令小弟印象深刻的還是 JR 的服務。小弟曾多次把摔壞了的接收機, 伺服機等直接寄回日本的 JR -袉z﹐JR不但把損壞的器材迅速-蚹插M過程還不收分文(包括回程郵費)。

但時移世易﹐永利(JR 的-輕銗N理)的吳老闆現在好像已放棄了-輕銂漸奕鶦諢MJR 的器材不但貨源少﹐而且價格高。無怪今天-輕銂獐珓洵氻w是 Futaba 的天下了。 據聞吳老闆的公子已接掌永利業務﹐未知 JR 會否-垣須磽~雄-楚C

Name: KK
Topic: Re: 玻璃仔 用JR or Futaba
Date: 06 May 2003
Time: 10:02:23

Message

我想講這題目可能講一年都冇答案...有-蚋眾瑼漱隤k,1.你?邊的朋友是用那-荍A便買它,不用想,因有問題時可立即找到幫忙。 2. 如你大都用來-?蜀鱆漸i選FF9 ,如大多-葵膜刉鱆瑪顃R 3810,至於JR 9X 不知-n等到可時,日本模型書(????技術5月?)已全收起9x的廣告,在JR 的廣告有兩行的聲名,大意是9x 的推出時間會長時間推後,不便之處....... JR remote 你須-n的一定有不用的不會多給你,JR 你用了以後一定會愛上它,Futaba 你會覺得好trouble....你到店家比較一?,叫他-拑鳩A拿上手try try ,自已感覺一?,他-抪|樂意給你意見,但小心不-n去?黑店便是了

Name: 玻璃仔
Topic: 用JR or Futaba
Date: 06 May 2003
Time: 10:00:15

Message

我想講這題目可能講一年都冇答案...有-蚋眾瑼漱隤k,1.你?邊的朋友是用那-荍A便買它,不用想,因有問題時可立即找到幫忙。 2. 如你大都用來-?蜀鱆漸i選FF9 ,如大多-葵膜刉鱆瑪顃R 3810,至於JR 9X 不知-n等到可時,日本模型書(????技術5月?)已全收起9x的廣告,在JR 的廣告有兩行的聲名,大意是9x 的推出時間會長時間推後,不便之處....... JR remote 你須-n的一定有不用的不會多給你,JR 你用了以後一定會愛上它,Futaba 你會覺得好trouble....你到店家比較一?,叫他-拑鳩A拿上手try try ,自已感覺一?,他-抪|樂意給你意見,但小心不-n去?黑店便是了

Name: Willy
Topic: Futaba, JR
Date: 06 May 2003
Time: 08:28:12

Message

咁就肯定Futaba多人用過JR好多、好多。

Name: 玻璃仔
Topic: 多謝 Y C Lui 的指點 ^_^
Date: 06 May 2003
Time: 07:31:30

Message

我這生人第一次購買第一支發射器的,故吾想失望,希望大家比多D意見給我應該選擇 JR 定還是 Futaba 好,因為想玩遙控-蜀鱆疑鰜Y都等到急不及待,今-茯P期日就會購買,在這裡希望多D師父級話比小弟聽買邊隻牌子和型號,我會時常收看這討論網站直至星期日?上,如看到大家多提邊款牌子贊好和型號,我就決定買-茪鉾o射器,在這裡-漸多謝網主-伈o地方給我問意見,希望會多些師父級提供意見比我買支好的發射器,多謝大家,吾該^_^

Name: Y C  Lui
Topic: Re:玻璃仔 小弟想請教大家一些問題?
Date: 06 May 2003
Time: 04:43:58

Message

小弟也打算購置一套新的遙控系統以替換現時手頭上的”古董“並-p劃選擇 JR 的 PCM 9X. -鴞]不是因為 JR 比 Futaba 好而是由于小弟已用了 JR 多年﹐手頭上現已累積了一定數量的 JR PCM 接收機和發射機 module ﹐如現在轉用 Futaba 的話﹐便會浪費這些器材.

現時大部份中價( $2700 - $3400 ) 的電腦 PCM 遙控系統的功能均極高﹐同一台發射機可用于動力-蜀驉M滑翔機及直昇機﹐幾乎可以用一世。

Futaba 9C 和 JR 3810 (短期內將被 9X 取代)都是尚佳之選但 JR 比 Futaba 較昂貴而且貨源不多﹐故選擇 Futaba 9C 可能比較上算。價錢大概是 $2800 - $3000 左右。

Name: 玻璃仔
Topic: 多謝 KK 同 Willy 兩位 ^_^ 吾該曬 ^_^
Date: 06 May 2003
Time: 04:08:19

Message

THANK YOU

Name: KK
Topic: Re: K.Y.Mak 馬鞍山撞机事件
Date: 06 May 2003
Time: 03:55:26

Message

嘩! 你又撞機呀.....肉痛嗎?都叫你玩?直升機先啦,等你呀 hor hor

Name: KK
Topic: Re:玻璃仔 小弟想請教大家一些問題?
Date: 06 May 2003
Time: 03:47:11

Message

JR x-3810 或 Futaba ff9 (細9) 都是好選擇 本人比較喜歡使用JR,手感較好,設定容易 以前我是用ff9的,但感覺不好所以換了JR 這兩-舥emote 有-蜀鱆帘M直昇機版的,功能一樣,但油門手感不同, 和有些開關的位址不同 兩-舥emote 價錢差不多 around HK$ 2800 - 3000 JR 你可到旺角卓藝看看,地址:花園街43號一樓(近山東街)找旗-羺搯? Futaba 你可去雷達行:九龍尖沙咀柯仕甸路 19-23 號太古貿易大廈一樓 105-106 室 找 Tomy 問問

Name: 玻璃仔
Topic: 多謝 Willy 的指點,但還有一些問題請教你^_^
Date: 06 May 2003
Time: 03:45:35

Message

我有細心閱讀,但我吾知邊隻牌子同型號會好D和在機場上多人用,好等小弟吾識用D功能,都可以即時請教師父和大家,你可不可以為我指點買邊隻師父級用多D的牌子和型號呢?吾該你^_^

Name: Willy
Topic: 初學資訊
Date: 06 May 2003
Time: 03:27:01

Message

玻璃仔,請登入此網站主-隍滿u初學天地」內的「遙控裝備」,及「聯網」內的「本地模型店」網-間C

8、9 頻道的遙控,巳足夠玩-蜀驉B電機、滑翔機、直昇機等。

Name: 玻璃仔
Topic: 小弟想請教大家一些問題?
Date: 06 May 2003
Time: 03:16:43

Message

大家好^_^ 小弟想買一部多功能遙控器,請問PCM係吾係最好呢?其實有冇一部遙控器可以玩到:滑翔-蜀?電動-蜀?馬達-蜀魕M直升機呢?因為小弟對遙控-蜀鬫n有興趣,希望可以-t出多少少在遙控器這方-?吾想走遠路買幾部遙控器,希望有一部遙控器就可以玩到已上遙控機種,請說明牌子和型號價錢多少,那裹買會?一點,好讓小弟去到商店容易選購,多謝大家,最-?n小弟-^文程度有--,麻煩大家用中文回覆小弟,吾該,多謝大家.^_^

Name: 玻璃仔
Topic: 小弟想請教大家一些問題?
Date: 06 May 2003
Time: 03:15:41

Message

大家好^_^ 小弟想買一部多功能遙控器,請問PCM係吾係最好呢?其實有冇一部遙控器可以玩到:滑翔-蜀?電動-蜀?馬達-蜀魕M直升機呢?因為小弟對遙控-蜀鬫n有興趣,希望可以-t出多少少在遙控器這方-?吾想走遠路買幾部遙控器,希望有一部遙控器就可以玩到已上遙控機種,請說明牌子和型號價錢多少,那裹買會?一點,好讓小弟去到商店容易選購,多謝大家,最-?n小弟-^文程度有--,麻煩大家用中文回覆小弟,吾該,多謝大家.^_^

Name: 玻璃仔
Topic: 小弟想請教大家一些問題?
Date: 06 May 2003
Time: 03:11:09

Message

大家好^_^ 小弟想買一部多功能遙控器,請問PCM係吾係最好呢?其實有冇一部遙控器可以玩到:滑翔-蜀?電動-蜀?馬達-蜀魕M直升機呢?因為小弟對遙控-蜀鬫n有興趣,希望可以-t出多少少在遙控器這方-?吾想走遠路買幾部遙控器,希望有一部遙控器就可以玩到已上遙控機種,請說明牌子和型號價錢多少,那裹買會?一點,好讓小弟去到商店容易選購,多謝大家,最-?n小弟-^文程度有--,麻煩大家用中文回覆小弟,吾該,多謝大家.^_^

Name: Stanley Chan
Topic: 7 feet foamy wing
Date: 05 May 2003
Time: 23:12:03

Message

Hi Tsz Ming,

I guess you need to install a strong spar all the way to the wing tips as the flying wing of that size will definitely flex without a spar. My 72" Beetle (without a spar although look strong enough) will flex in high speed dive, it flexes like a jellyfish and is so funny to look at - everybody on the slope will laugh at it. You also need to make cabinets for installing ballast for stronger wind. It is better to make two ballast cabinets, one at each side of the wing away from the centre. The roll rate will be deadly slow for a wing of this size if there are no weights on the wing tips.

Name: Y C Lui
Topic: 7 feet span flying wing
Date: 04 May 2003
Time: 06:06:51

Message

Hi Tsz Ming,

The Bat has just been put into production and you are already working on a new project ? Wondering what you will be after this time ….

A racer ?

Something with special abilities such as hovering really still like parked in the air ?

Something with a crowd drawing appearance ?

Or just something weird such as the two wing panels detaching from each other in the air and each panel will still be able to fly on it’s own ? A flying wing that can fly forward and backward ??!!

Happy soaring,

Y C Lui

Name: Tsz Ming
Topic: How about 7 feet flying wing?
Date: 03 May 2003
Time: 14:50:09

Message

Dear All

I just planing to make a 7 feet EPP flying wing for fun, any suggest?

Thank, Tsz Ming

Name: CM Cheng
Topic: Poor Miraj
Date: 03 May 2003
Time: 14:05:12

Message

Yes, it takes time to tune and communicate with a new plane. Sorry I didn't mean losing the plane is good.

It makes me recall the ending of my Brisk II. I was practising F3F course and just after entering a turn it ran into a big scale plane. The wings collapsed and the fuse in 4 pieces. It had been flown for about five months and everything tuned and then lost it. hmmm . . not a good feeling!

Name: Stanley Chan
Topic: Image of the Poor Miraj
Date: 03 May 2003
Time: 13:07:12

Message

I have put up a photo about my poor Miraj. I have been tuning this racing machine and it was just getting better and better before it came to its destiny. I didn't expect that its life is just too short. Anyway, the mid air was so spectacular and I am sure you have never seen this before. It happened so fast, all I can remember is the image of explosion of the Miraj!

http://www.rcsail.com/graveyard20.jpg

Name: Nunzio Vitiello
Topic: GY 401 GY 502 GY 601 and all brand futaba servo
Date: 03 May 2003
Time: 08:34:35

Message

I am looking for a new Business kontakt for RC Helicopters like GY 401 w/9253, GY 502, GY 601, GY 240 w/9253, Governor GV-1 and all kind of servos from Futaba.

Iam a dealer from Germany and Iam interested to sell the Futaba products.

Please send me your conditions or if its possible a pricelist. Or tell me where I can talk to.

Thanks in advance.

Yours sincerely,

Nunzio Vitiello

fotini@hindel.de

Name: CM Cheng
Topic: Ma On Shan mid-air
Date: 03 May 2003
Time: 04:43:44

Message

Hi Mak,

How did you do this?! My friend said his Miraj is called "the Blue Scalpel" in Taiwan because of its super tough construction. Now you can break it into PIECES with a Shooting Star . . .

And don't be sad Stanley, "if the old don't go, the new won't come!" Congratulations to you for setting the new HK record. 51 seconds . . my best was over 1 minutes!

I hope I can go on 1/5.

rgds, CM

Name: Stanley Tam
Topic: 無電腦
Date: 03 May 2003
Time: 00:15:40

Message

近日跟好友黃靈通電,發覺他家堥S有電腦而他很想參加貴會活動. 現本人代他希望貴會發信通知.

Name: K.Y.Mak
Topic: 馬鞍山撞机事件
Date: 02 May 2003
Time: 23:37:33

Message

馬鞍山的 F3F 實習非常完美、-歲t也不錯,更由 Stanley 用 F3F Sting 做出 51秒的記錄。 ( Stanley, 你一下子把記錄 set 得那麼高、叫我-怮蝻阭l呢!!)

當日美中不足處、是我的 Shooting Star 與 Stanley 的 MiraJ 在空中高速相撞。

當時實在是發生得太快。只記得、我把 Shooting Star 以 F3F 方式於 A 點急轉彎時、MiraJ 在同一 位置化成碎片!( feel sorry to Stanley and his MiraJ )。

也想不到我的 Shooting Star 的生命是那麼多災多難! 上次在大清報消了雙翼後,星期三晚才把新翼安裝好。到星期四撞机時、還不足 24 小時呢! 我實在需-n檢討一下自己的-蒂瑽瑋N。我發現自己-訰顗熄i度,追不上撞机的次數。 總是有壞机待-蛌滿I

兩机相撞後、我-怐嶀F不少寶貴的放机時間於找回-補韝W。Thank you YC! MiraJ 的損毀十分-哄B左翼斷開,机?也有裂紋。 反而 Shooting Star 的受力位置是机?與翼的相連點,机?-垓{舊裂紋及翼上只有一吋半?方的損毀。 相對上損毀己算很輕。昨天晚上己把它-袨_了。

Stanley 把 MiraJ 交了給 YC 進行-袑氻u程,未知進展如何? YC 說、會把-袑伄L程上網。以 YC 的高超工藝,我-怳S有學習机會了!

Name: Willy
Topic: 馬鞍山 F3F  1.5.03
Date: 02 May 2003
Time: 03:30:24

Message

當日之餘興節目, 由 K Y Mak 示範巨型 Flexifoil 紙鳶,我覺得同樣震撼。

Name: Alexis
Topic: Hong Kong F3F record
Date: 02 May 2003
Time: 01:01:26

Message

Congratulation to Stanley. Please call me to join Ma On Shan gathering next time. Although, I have a bad experience to recover my twist using 5 hours. I 'm really enjoy to fly on MA On, becasue of the view, landscape ...especially diving from 大金鐘.

I also agree Y C that,setting of the plane is very important.

You can check the below recording from Taiwan F3F record.

The winner is using Pike and Mini ellipe.

http://www.geocities.com/tarcg/92F3Fscore.htm

Happy soaring.

Name: Y C Lui
Topic: Hong Kong F3F record
Date: 01 May 2003
Time: 23:23:32

Message

Congratulation to Stanley because he is the new record holder. It was a very enjoyable gathering at Ma On Shan yesterday . Good lift, blue sky, beautiful scenery, buddies sharing experiences and jokes, big gliders going wheeeee across the sky… what more can you ask for ?

It’s still too early to say which plane is the best but based on the observations so far, the Sting ( F3F version ) is really impressive in Hongkong’s lift condition. It’s ability to retain energy is well demonstrated yesterday by Master Leung whose Sting kept dashing faster than average for as many as 4 legs ( 400 m ) after diving down the 大金鐘 peak.

Having said that, the performance of the machine counts only about half in determining how well one do in F3F contests. The rest depends on the setting of the plane and how well you know your plane in order to push it to it’s limit. With good thumbs, it will not be a surprise for a Shooting Star to beat a Sting.

Looking forward to more gathering of this kind to further escalate our skills and the most important of all, make this hobby more enjoyable for us.

Cheers,

Y C Lui

Name: Alexis
Topic: Hong Kong F3F record
Date: 01 May 2003
Time: 22:39:30

Message

Oh! Great. Who make this best record?

Name: Stanley
Topic: Hong Kong F3F record
Date: 01 May 2003
Time: 12:18:20

Message

Hi, a few of us went to fly a F3F race in Ma On Shan today. Our fellow soarers all have their best-performance gliders showed up, including New Sting, Pike WR, Sting and Miraj. The condition is just good enough that we are able to push the time down to fifty. I would say the Hong Kong F3F speed record now stands at 51.57s. Sooner or later we believe the record will further be pushed down to forty. Keep going and practice more.

Cheers

Name: Stanley Chan
Topic: RC frequencies
Date: 28 Apr 2003
Time: 13:00:16

Message

As far as I understand, only the 26.96-27.28MHz with output power of less than 0.5W is for radio control models, all other frequencies including 36.26-36.54, 36.41-36.69, 36.71-36.99, 36.96-37.24 and 40.66-40.70 MHz are intended for cordless telephones used at home and their radiated power is less than 10mW. So we should be more restrictive as the two channels in 72MHz are lost all together. We should express our disappointment to OFTA as they never listened to our demand. We got stuck in the type-acceptance requirement OFTA demands. Peter and I have been contacting Futaba in Japan and some local distributors so far they are not helping enough to remedy the problem. The type-acceptance test costs over HK$10,500 and this is only for one transmitter model from a single manufacturer. I have exhausted all means to deal with the problem. God bless us!

Name: Willy
Topic: New rules on frequency
Date: 28 Apr 2003
Time: 12:04:19

Message

They only exempt from licencing 26.96-27.28, 36.26-36.54, 36.41-36.69, 36.71-36.99, 36.96-37.24 and 40.66-40.70 MHz. Do the commonly used R/C bands on 36 and 40 Mhz fall within the exemptions?

For 72 Mhz, the exemptions do not apply at all, and licences are still required. Well, I'm on 72. I guess I may switch to 36 and 40, just to save the trouble of renewing my licence year after year.

Name: Fatman
Topic: License for my Radio-Control
Date: 28 Apr 2003
Time: 11:45:53

Message

Having seen the latest post regarding for RC license, I would like to know whether my RC (72MHz) need to apply the license from Governemnt...Or, my freq. is illegal and cannot be applied any license??

Thx

Name: Stanley
Topic: MiniNYX CG
Date: 28 Apr 2003
Time: 09:32:36

Message

It is located 75mm from the leading edge. A small amount of ballast in the nose should be able to balance the plane. Good luck.

Name: Danny
Topic: MiniNYX CG
Date: 28 Apr 2003
Time: 09:19:58

Message

Hi,

Just want to ask what is the CG position of the MiniNYX?

Name: Jason WAI
Topic: 電訊管理局就合法使用搖控頻譜的回覆
Date: 28 Apr 2003
Time: 01:40:25

Message

收到電訊管理局就合法使用搖控頻譜的回覆,全文如下

很多謝你的來郵. 閣下提及的 電訊(模型控制設備)(豁免領牌)令 是被 二零零三年二月二十一日發出之電訊(電訊器具)(豁免領牌)令 所取代.即是說,如果你所使用的器材合乎上述豁免令,不須領牌.

有關之豁免令,請參閱下列之網址:

http://www.info.gov.hk/cgi-bin/pd/gazettefiles.cgi?lang=c&year=2003&month=1&day=17&vol=07&no=03&gn=4&header=1&part=1&move=1&df=1&nt=s2&agree=1&acurrentpage=12&gaz_type=ls2

如再有任何疑問.請撥電2961 6671 聯絡本人

廖啟文 電訊管理局

Name: Jason WAI
Topic: 遙控滑翔飛行協會 與 香港遙控直升機協會 合作
Date: 27 Apr 2003
Time: 22:39:48

Message

致 : 遙控滑翔飛行協會 主席, 副主席, 各斡事 及會員

您們好!

香港遙控直升機協會 ( http://www.hk-aviation.com ) 提議 看看 能否 與 我們 遙控滑翔飛行協會 合作. 聯合兩會的力量,向電訊管理局爭取更多合法遙控頻道, 與 保險公司爭取更優惠的條款.

香港遙控直升機協會 想跟 遙控滑翔飛行協會 溝通, 了解 學習一下, 趟若真的有 嚴重事故意外發生,應如何處理?協會本身又可以在中間提供什麼協助給所屬會員。協 會又可不可以在未發生問題前,提出什麼預案, 應變措施? 直升機協會 想借鑒 遙控滑翔飛行協會的經驗, 學習一下.

滑翔機協會和直升機協會都是熱愛模型飛行的志同道合,不知可否 大家 互相提出意見, 交流一下? 為兩會會員爭取更多!

多謝各位!

Jason WAI C.K.

Name: Danny
Topic: To Stanley & YC
Date: 27 Apr 2003
Time: 11:56:11

Message

I will try it out. Thanks a lot :)

Name: Stanley Chan
Topic: MiniNYX nose weight
Date: 27 Apr 2003
Time: 11:05:28

Message

Hi Danny,

The available space in a MiniNYX's fuse is already more than those in a Shooting Star. To minimize nose weight I put two micro servos (FS3106) in front of the receiver. To cast a nose lead is out of our ability unless you have the help from ballast master as Y.C.! What I do is to put a few pieces of fishing lead into the nose and use epoxy to fix them in place. Still you should have plenty of space for the 750mAH battery pack. Happy soaring.

Name: Y C Lui
Topic: To Danny - nose weight for mini NYX
Date: 27 Apr 2003
Time: 09:21:19

Message

After putting in the AAA size battery, there should still be some space left in the front part of the nose and you have to fill up that entire space with lead. To achieve this, you will need to make a piece of lead having exactly the same shape as the inside of the nose. The method is very simple and is described in the web page mentioned by Alex earlier http://www.rc-soar.com/tech/casting.htm.

In case the nose weight made in this way is still not heavy enough to bring the CG to the desired position, you may use 2/3AAA size NiMh battery. The capacity is 350 mAH which should be good enough for one flying day.

Hope it helps,

Y C Lui

Name: Danny
Topic: Construction of Mini-NYX
Date: 27 Apr 2003
Time: 01:51:15

Message

Hi all,

I am building a mini-NYX. I am surprised that the nose room is extremely tight (even smaller than the microfloh). After placing the AAA sized NiMH, servo and receiver, there is no room left for the lead. How do you guy put in lead weight? All goes to the front part of the ballast tube?

Please give advice. Many many thanks.

Name: Mak
Topic: DS sailplanes
Date: 26 Apr 2003
Time: 00:12:35

Message

Hi Stanley,

Why not import some mid sized planes for DS/F3F flying. We don't have much selection on 1.8m to 2.3m planes! The Opus seems to be a good one.

Mak

Name: Danny
Topic: To YC Lui - glider selection
Date: 25 Apr 2003
Time: 20:20:45

Message

I've contacted Stanley before and I guess it will be quite a while before the next lot of Sting will come. If I just order 1, it will be very costly.

So head-scratching...

Name: Y C Lui
Topic: To Danny - glider selection
Date: 25 Apr 2003
Time: 12:50:22

Message

Hi again. The price of the 2.5m Blade is really low ! It's even cheaper than the regular 2.5m Miraj ( i.e. not 30.8 or DS version ) but the workmanship and degree of completion of the Miraj is far poorer than those of the Blade. The Miraj doesn't even come with wing bolts, can you believe that ?

The total cost of my Pike is HK$6000 and the Sting is significantly cheaper. Talk to Stanley and you will probably change your mind.

Y C Lui

Name: Danny
Topic: To YC Lui - glider selection
Date: 25 Apr 2003
Time: 12:40:02

Message

Thanks YC,

I've seen the Wizard Compact list, too, which scares me...

I agree that sting, NYX, Pike, Brisk... are excellent, but don't they cost more than HK$6000? My gf will kill me~~

For Opus and Blade, there are in the range below 400 euro ~ around HK$3xxx. It's now the matter of shipping cost...

Name: Stanley
Topic: Blade from X-model
Date: 25 Apr 2003
Time: 12:38:40

Message

Hi Danny,

Surprised to know that some local pilots are interested in Blade and X-model's plane. So far I have seen only two X-model's Whispers in Hong Kong. Blade should be a good-value-for-money model. Actually X-model has contacted me before to ask whether I am interested in distributing their models but as the local interest of their product is rather small, I am reluctantly willing to do so. If you are able to get a large order I guess you can contact X-model in Italy directly to get a better deal.

Name: Danny
Topic: Blade from X-model: email replies
Date: 25 Apr 2003
Time: 12:26:02

Message

Oh shit, I've stupidly copied Ah Pong and Mak's name into the "Your Name" field in the previous two messages. Sorry, I didn't pretend to be them :p

Here I quote the replies from X-model:

"the whisper is not an extremely fast plane, due to the quite thick wing profile, that is a SD 7037; it is a very good flyer but the speed range goes from very low to medium (at least for our standards).

The Blade is a much faster plane, due to the much thinner RG 15 mod to 7,8% thickness; during some DS flight we have clocked the Blade (using a radar gun) at speed above 110 miles"

"yes it is true we have a new Blade 2.5 coming ... but are you working for the CIA ? Not really many people are aware of this :)

here is the picture attached

But for the shipping costs due to the fuelage lenght and bos size it wil not be so much better than the Blade

The very good thing is th eway it flyes; we had the chance to eventually fly the very first production unit (till now we have only tested preproduction models) on the slope on the italian alps last sunday (was still very cold, we were flying from th eonly field free from the snow) and the performances are really awesome."

"Wing is 2 pieces, top hinged aileron and flap, shipping cost as the blade, selling price outside EEC 375 euro

if you are interested to the model, just confirm by email, for now it will be ok. When I will have the model in stock (around the 10th of May) , I will contact you and we usually suggest payment by credit card (visa or mastercard). Or you can make a bank wire transfer, as you like. The models that are arriving are yellow/red, yellow/blue and maybe white/blue.

The Blade XL is a son of the Caracho F3B (2001 edition), the wing platform comes from the same man. Honestly I have not had the chance to test the Acacia but all the other models from the same family (Blade 1.5, Blade, Xcalibur) are really flying fast and have the capacity to retain the speed even in tight turns or when doing rolls. With the Blade speed in excess of 130 mph have been reached while DS and more than 100 with the Blade 1.5, still no data on Xcalibur or Blade XL as tehy are just too new"

Sorry for the long post...

Name: Y C Lui
Topic: To Danny - shipping charges
Date: 25 Apr 2003
Time: 12:25:16

Message

Soo.... you heard about the 2.5m Blade from X-models. I would suggest you to really talk to them about the shipping cost. Usually, regular postal service is a lot cheaper than couriers such as Fedex although I have heard of exceptions.

I ordered my Pike WR from UK a few months ago and after spending some time with the vendor to explore different shipping options, the shipping cost was reduced from 86 pounds to 40 pounds but I have to give up the shipping insurance in the process.

Y C Lui

Name: Y C Lui
Topic: To Danny - glider selection
Date: 25 Apr 2003
Time: 12:16:58

Message

Hi Danny,

I have also placed order for the Wizard Compact II but as shown in the corresponding order list in ET-air's web page, there isn't yet any delivery date next to my order ( #91 ) so I think I will be giving it up.

Going back to your question, if the Wizard Compact is within your budget, I would strongly suggest you to go for the Sting. It's cheaper than the Wizard Compact if you get it from Stanley. Of all gliders I have seen in the field. Sting is the best both in terms of performance and workmanship. I have long been wondering why Vaclav Vojtisek didn't put a higher price tag on it.

By the way, where did you hear about the 2.5m Blade ? It's not shown in X-model's web site http://www.xmodels.it/. You must be an net searching master !

Y C Lui

Name: Ah pong
Topic: Group order of Blade from X-model
Date: 25 Apr 2003
Time: 12:07:03

Message

Hi Pong,

Long time no see on the slope.

For the Blade 2.5m, it's 375euro. For the shipping cost, X-model will come back to me with the estimate in a few days, but only via Fedex. If it is too high, I may abondon the order.

You know, it's hard to find mold planes in HK. I've ask Tak Cheong (HK) if he would import some of these planes, he said this is not the way to do business. BS. I think at least me, on of the potential customer, would not come back to him anymore :p

Name: Mak
Topic: sailplane selection
Date: 25 Apr 2003
Time: 11:54:20

Message

Hi Mak,

For the Opus, I've also contacted Espen (Et-Air) about it's cost and delivery. In deed, I found many positive reviews on web about the Opus. Unfortuate, it is 1 piece wing which could not be accommodated in my car. Also, from a web page (http://mpa.freeservers.com/opushelp.htm) I found it's weight / wing loading is extremely high (bcoz of the heavy carbon treatment). I might want an average plane which could fly on front side under moderate lift and some DS practice, too, but not a DS-only monster :)

Maybe if anyone out there does have an Opus, Blade, or the Wizard Compact II could give some comments?

Name: Mak
Topic: sailplane selection
Date: 25 Apr 2003
Time: 07:42:17

Message

Hello Danny,

Are you going to use the Blade for DS ? Have you got more details on the ship!

I'm looking into the Opus as a DS ship.

http://www.et-air.com/opus/index.htm

It cost euro 390. How does it compare with the Blade ?

Mak

Name: Ah pong
Topic: Group order of Blade from X-model
Date: 25 Apr 2003
Time: 07:26:46

Message

Dear Danny,

Sorry for the typing error, I am asking the prize of 2.5M Blade,thx.

Name: Ah pong
Topic: Group order of Blade from X-model
Date: 25 Apr 2003
Time: 07:23:52

Message

Dear Danny,

Could you tell me what is the prize for a 2M version?

Name: Danny
Topic: Group order of Blade from X-model
Date: 24 Apr 2003
Time: 14:33:49

Message

Sorry, the 3 links in the previous message should be

http://147.8.2.22/~dannywmk/Blade2.5m.jpg http://www.euro-sailplanes.co.uk/uk/html/sport-hlg/blade.htm http://www.albamodel.com/glider/off_scale/blade/index.html

Name: Danny
Topic: Group order of Blade from X-model
Date: 24 Apr 2003
Time: 14:16:45

Message

Hi all,

I am in searching of a large (>2.5m) speed plane and come up to the Blade 2.5m from X-model. I choose it bcoz it is not as expensive as those hot F3F like Sting. I am going to order it. As the 2.5m version is new and not yet on the market, there is not much details on web, if any:

2.5m wing span 2 piece wings with carbon joiner carbon reinforced wing, tail and fuselage RG15, 7% thickness top hinged flaps and ailerons

You could see a picture <a href=http://147.8.2.22/~dannywmk/Blade2.5m.jpg>here</a>

For details of older version (2m), see: <a href=http://www.euro-sailplanes.co.uk/uk/html/sport-hlg/blade.htm>1</a> and <a href=http://www.albamodel.com/glider/off_scale/blade/index.html>2</a>

Anyone interested, we can have a group order. Drop me an email at dannywong1941@yahoo.com.hk

Name: Tsz Ming
Topic: DS......
Date: 14 Apr 2003
Time: 12:55:38

Message

Danny

DS is fun and exciting! Not easy to DS well but easy to buy a new plane. Keep far far away to people should be ok, but be careful yourself anyway.

Don't DS alone!

Tsz Ming

Name: Danny
Topic: To Y C Lui
Date: 14 Apr 2003
Time: 07:25:37

Message

Yes Sir!!

Name: Y C Lui
Topic: To Danny - DS 到好 high
Date: 14 Apr 2003
Time: 07:00:48

Message

原來尋日響西南位上面 DS 到 VV 聲就係你。聽落好勁播﹗ 不過要小心下面大彭人呀. 否則可能會樂極生悲。

Y C Lui

Name: Danny
Topic: 向上射
Date: 14 Apr 2003
Time: 05:27:36

Message

尋日,帶左架 microfloh 去飛鵝山放, 在南位放了一會, 悶悶地就走上山頂, 見四下無人, 就斗膽於光天化日下, 獻出我既第一次 ~~ DS. 好好彩, 試左幾個圈, 就摸倒竅門. 越飛越低, 越飛越快, 快倒頂唔蒲, 噢 ~~ 一野射左上天 (隻機)...

玩坐大半年, 都係識得向下插, 向上射都係第一次, 好 high 呀 ~~

Name: Stanley
Topic: 三門仔泊車
Date: 10 Apr 2003
Time: 12:56:34

Message

聯益新村上面有塊空地可泊車,但這埵釩雃h村民子弟打足球,一鴾ㄓp心隨時架車會食波餅。最好把車泊在迴旋處旁的空地。

Name: Mak
Topic: 三門仔
Date: 10 Apr 2003
Time: 10:55:44

Message

There are parking spaces by the dock.

Name: Y C Lui
Topic: 三門仔
Date: 10 Apr 2003
Time: 08:51:36

Message

請問架車可以泊邊度﹖係唔係聯益新村或三門仔新村村口 ﹖

Name: Mak
Topic: 三門仔
Date: 10 Apr 2003
Time: 06:50:20

Message

我都去!

Name: Stanley
Topic: 三門仔
Date: 10 Apr 2003
Time: 06:29:26

Message

無問題我可以帶隊。如果真是吹南風的話,我們可以下午1時半在三門仔集合,然後步行前往。天氣預告是吹南風,但我相信可能有霧,飛鵝山高地可能不能飛行。但這埵a勢低一定無間題,各位機師一齊來飛吧!

Name: Willy
Topic: 三門仔,本週六4月12日
Date: 10 Apr 2003
Time: 05:17:50

Message

Stanley,你來帶隊好唔好?話晒你好似去過(相片與文章是你提供?)

Name: Willy
Topic: 三門仔,本週六4月12日
Date: 10 Apr 2003
Time: 03:33:30

Message

咁不如誰人想去,就在此留言。週五晚確認。

Name: Y C Lui
Topic: 三門仔
Date: 10 Apr 2003
Time: 02:14:54

Message

我有興趣。最好搵多幾個飛友﹐熱鬧D。

Name: Willy
Topic: 三門仔
Date: 10 Apr 2003
Time: 01:39:44

Message

http://www.rcsail.com/OtherSites.htm#Sam%20Mun%20Tsai%20in%20Tai%20Po 介紹《三門仔》的南風位。本週六天氣預告吹南風,有冇人會去?

Name: 無名氏
Topic: Rocky 碌野太長,點搞呀?
Date: 08 Apr 2003
Time: 06:40:21

Message

你碌野(推扞?)太長,問點解決?剪短佢咪得咯!

Name: motorman
Topic: Battery charger
Date: 08 Apr 2003
Time: 03:50:04

Message

That charger is a product of Associated/Reedy. You may contact World Model at Wanchai.

Name: Rocky
Topic: 請問連杆的長度過長,點算好??
Date: 07 Apr 2003
Time: 23:15:59

Message

我係一名新手,買左一套滑翔機,但係我發覺水平尾翼的連杆太長,點算好呀~~ 請大家幫幫忙~~ thx~~

Name: Y C Lui
Topic: Ballast and nose weight
Date: 07 Apr 2003
Time: 22:24:48

Message

Hi Stanley,

The best way to make nose weight is described in the web page mentioned by Alex earlier http://www.rc-soar.com/tech/casting.htm. No high skill or special equipment required and everyone can do it at home.

Making a brass tube of the right size for molding ballast is actually not too difficult if you have access to a lathe and the required cutting tools. The major difficulty here is to allow for the change in dimension due to contraction of the lead cast in the process. The mold for the ballast of Shooting Star has an internal diameter of 12.36 mm which is translated to a diameter of 20.02 mm on the ballast side. Just 0.02 mm off the target of 20 mm so I was happy. Then I applied the ratio to the mold for the ballast of Sting but found the error to be significantly larger. I was aiming at a ballast diameter of 15.5 mm but the actual diameter of the cast turned out to be 15.55 mm. Seems that the equation is not a linear one.

Cheers,

Y C Lui

Name: Stanley
Topic: Ballast spacer
Date: 07 Apr 2003
Time: 13:33:19

Message

Hi Y.C.,

I didn't mean to replace the spacer, I am really happy to use it in my Shooting Star. The problem with NYX is very small. What I said is a suggestion to improve the spacer next time you going to make it for other fellow rc soarers. I guess to make it a bit smaller should be ok. I have seen some spacers from f3x.com that have hole drilled in the centre for the ease of removing.

From your description, I wonder how you actually made a Brass tube mold with correct dimension. Do you have any idea to make a mold for the Shooting Star's nose for CG ballencing? I guess fellow rc soarers with a Shooting Star are also interested to make such nose ballast.

Name: fatman
Topic: Battery Charger
Date: 07 Apr 2003
Time: 12:27:54

Message

Hi MotorMan, Can I find the charger at Hong Kong?

THx

Name: Ah Pong
Topic: ballast Set
Date: 07 Apr 2003
Time: 11:30:17

Message

Hi YC, Thanks for your offer for such a perfact ballast that I had ever seen. You are the Real Master of this! After read your photos on making the ballast, I am totally impressed by your craftmanship and wishing to give your a salute in return for your contribution to the club. Thanks once again. Best Regards.

Name: Y C Lui
Topic: Ballast spacers
Date: 07 Apr 2003
Time: 11:15:19

Message

Hi Stanley and Mak,

Yes, occasionally I have difficulties in removing spacers from my Shooting Star due to the mentioned reasons. I believe it will be a good idea to make the spacers a little bit smaller ( perhaps 0.5mm ) than the ballast in diameter so that they will fall out more easily.

No problem Stanley, you will have a new set of spacers that fits your big NYX this week end. Pls return to me the original spacers which I will pass to other Shooting Star / mini NYX owners.

Cheers,

Y C Lui

Name: Danny
Topic: Sailplane comments
Date: 07 Apr 2003
Time: 10:16:20

Message

Hi buddies,

1) Does anyone have comments on the following planes, especially at the slope?

Whisper, Blade, Opus, Wizard Compact

2) Is the SD7037 airfoil good at slope / penetration, or just good at thermal?

Name: K.Y.Mak
Topic: Ballast spacer
Date: 07 Apr 2003
Time: 09:46:04

Message

Hi Stanley,

Why not simply put lead ballasts at the two ends of your ballast tube, instead of at the center. This will make sure there is at lease one lead ballast at the back end of the ballast tube, which will force the spacers out.

Mak

Name: Stanley Chan
Topic: Ballast Spacer
Date: 07 Apr 2003
Time: 08:04:15

Message

Hi Y.C.,

You are master in ballast making! The ballast I received from you is so good and fits very well in the belly of Shooting Star/MiniNYX. However, I do have a comment on improvement of the spacer after I have tried fitting the ballast and spacer in my NYX. NYX is a 3m plane with a single ballast tube and the diameter of the tube is the same as that of Shooting Star. Totally, it can take 11 Shooting Star's ballast. The ballast or spacer is inserted to the tube through the tube opening in the canopy. Again, the ballast fits very well, I can insert and remove it with ease, but the spacer is a bit difficult to remove because it is so light that it got stuck in the tube (I think the tube is no longer a perfect circle after I have crashed the plane months ago). I would suggest to drill a pin through hole in the spacer such that we can remove the spacer from the tube using a long L-shape metal wire through the hole.

Name: motorman
Topic: All round batter charger
Date: 07 Apr 2003
Time: 04:15:05

Message

hi fatman, you may be interested in this charger: http://www.rc10.com/shusting/CatalogHub/reedy/new/charger.htm

Name: Y C Lui
Topic: Ballast set for Shooting Star / min NYX / Sting / New Sting
Date: 06 Apr 2003
Time: 18:59:42

Message

Hi Guys,

I have made a few sets for my buddies. In case you are also interested in getting a set for your model, please drop me a line at yclui@netvigator.com .

A brief description of the fabrication process is given at http://www.geocities.com/yclui_hk/making_ballast_1.html

Happy soaring,

Y C Lui

Name: Fatman
Topic: Suggest for Battery Charger
Date: 06 Apr 2003
Time: 10:01:20

Message

Hi there,

I would like to find a charger that can charge all my batteries such as receiver, motor battery and etc... It should have NICD/NIMH, charge/discharge, LCD, 220V AC/12V DC features and price performance....

Thx...

Name: Nick
Topic: JR pcm 9X
Date: 06 Apr 2003
Time: 00:46:22

Message

Does anyone know if the 9X radio is on the market yet??

Name: Gary
Topic: leave Bee on Fai Ngo Shan
Date: 05 Apr 2003
Time: 07:59:15

Message

My Bee was leaved on Fai Ngo Shan on 5 April unattended around 6:00 pm. Any Fellow Pilot collect my Bee which is orange in colour and with one yellow strip, please kindly send an email to fangary@email.com? Million Thanks.

Name: Willy
Topic: 北潭凹︰押後
Date: 04 Apr 2003
Time: 06:48:53

Message

原來明日是「清明節」,無人得閒,固押後。

Name: Willy
Topic: 北潭凹︰確認
Date: 03 Apr 2003
Time: 21:23:04

Message

明日天氣報告話東至東北風4級,離岸5級,多雲,有幾陣雨,部份時間天色明朗。

我九時會到《北潭涌》停車場,等齊人就搭車入《北潭凹》。我電話9433 7346。

Name: Willy
Topic: 北潭凹
Date: 02 Apr 2003
Time: 06:18:30

Message

個坡幾斜,兼厚草,跌得低上返來時頗費力。新機飛都未飛個的話,分分鐘未 trim 好,可能執鑊勁。建議試舊機。

Name: Y C Lui
Topic: 北潭坳
Date: 02 Apr 2003
Time: 03:55:08

Message

場地是否適合試新機?即有也事跌左落黎都好易執番。如果係的話﹐我或者CALL阿忠看看他有無興趣試飛他自製的兩米翼手龍。

Y C Lui

Name: Willy
Topic: 北潭坳
Date: 02 Apr 2003
Time: 01:25:48

Message

泊車方面,星期六整個上午都有位。但星期日就上午八時半巳爆滿。

暫定本週六,上午九時《北潭涌》等如何?齊人後就搭車入《北潭坳》。最遲下午二時要走,因為再遲些我怕下午巴士好爆,分分鐘在《北潭坳》不能上車。我上次都是一、二時走,巴士好鬆動、大吧位。

Name: Y C Lui
Topic: 北潭坳
Date: 02 Apr 2003
Time: 01:00:35

Message

我有興趣。最好星期六﹐否則在北潭涌都幾難有泊車位。

Y C Lui

Name: Willy
Topic: 北潭坳
Date: 02 Apr 2003
Time: 00:11:25

Message

我最近試飛過東位,幾掂。降落位頗平坦,厚草,兼且離《北潭坳》巴士站不遠,可由《北潭涌》搭車到《北潭坳》後行路去。

本週六、日想再去,有人有興趣一齊去的話,請在此留言。

Name: K.Y.Mak
Topic: 今天去飛鵝山造 ballast
Date: 28 Mar 2003
Time: 22:39:57

Message

我和 YC 今天會到飛鵝山放机和造 ballast. 上次 YC 帶給我們看的 lead ballast 造工十分美麗,全部以 lead 造成 所以重量應是最理想。 我現在也用了第二個方法造了一些 ballast,是用 lead 直接倒入銅管就完成。 外觀也算OK,但重量比較輕一些。

有與趣可一起試做不同類型的 ballast

Name: edward
Topic: 請各位滑翔機高手教路
Date: 24 Mar 2003
Time: 00:59:46

Message

小弟是初學者, 搞了個飛機論壇, 但答唔到滑翔機的問題, 請各位滑翔機高手, 來教路, 吹水. 唔該. http://www.hk-aviation.com/cgi-bin/leoboard.cgi

Name: K.Y.Mak
Topic: 高流灣
Date: 21 Mar 2003
Time: 08:17:41

Message

我都報名﹗

Name: Stanley Chan
Topic: Ballast Tube
Date: 20 Mar 2003
Time: 01:02:02

Message

Hi Nick, you do not need to make the tube moveable. Glue the tube securely in the fuselage. Make some wooden dummy slots same size as ballast slots so you can adjust the weight by inserting a combination of wooden and ballast slots.

Name: Alexis
Topic: Molding ballast with plaster mold
Date: 20 Mar 2003
Time: 00:18:37

Message

We use plaster to made the mold. After the mold set and dry, cut the mold vertically in 2 pieces (2 half cylinder).

Then,use a rubber band to tie them together,after that you can put the molten lead into it. After the lead cool, you can very easy to pull the lead out of the mold by loosen the rubber band. The plaster mold will not damage and can be re-use many time.

Name: Nick
Topic: Ballast tube
Date: 19 Mar 2003
Time: 23:03:54

Message

Another good way to make a ballast tube: http://www.gliderking.com/modules.php?set_albumName=album05&op=modload&name=gallery&file=index&include=view_album.php&page=2

However, I've been trying to figure out a way to secure the tube in the fuselage that's firm enough so it won't shift in flight, while remaining removable for adjusting weights, any advice?

Name: Y C Lui
Topic: Molding ballast with plaster mold
Date: 19 Mar 2003
Time: 09:14:36

Message

Tried it out last night with no luck ….

Making the mold was incredibly easy. The plaster set in about 5 minutes and the surface of the mold was very smooth. I was so pleased with the result that I forgot the warning words in the web page given by Alexis and started molding immediately. Wow ! the molten lead exploded like lava coming out from volcanoes ! Fortunately, I survived the little disaster and another mold was quickly made and let dry overnight.

I tried molding again this morning but after a few casts were pulled, the surface of the mold became so scratchy that it couldn’t be used any further. The problem was mainly due to the softness of plaster . Small scratches on the mold surface were mirrored into cutting edges on the cast and as the cast was pulled out from the mold, scratches were enlarged to produce even more prominent cutting edges on the next cast and this perpetual process eventually destroyed the mold.

Is there anything that I might have done wrong ? Would like to hear some advices.

Thanks,

Y C Lui

Name: Willy
Topic: 高流灣
Date: 19 Mar 2003
Time: 08:22:43

Message

預我一份。

假如湊夠十個、八個,可否考慮嘗試在高流灣的《昌記海鮮酒家》(電話︰9746 9292)食午餐?要就要事前預定啦,兼且可叫該酒家通知《北潭涌》閘口,讓我們駕車直入《黃石碼頭》。

Name: Edward
Topic: 誠徵板主
Date: 19 Mar 2003
Time: 03:12:53

Message

小弟搞了個飛機論壇, 誠徵板主,主持飛機技術板. 小弟是初學者, 請前輩教路. http://www.hk-aviation.com/cgi-bin/leoboard.cgi

Name: Y C Lui
Topic: Soaring Trip to Ko Lau Wan 高流灣
Date: 19 Mar 2003
Time: 02:41:46

Message

我報名﹗

Name: Stanley Chan
Topic: Soaring Trip to Ko Lau Wan 高流灣
Date: 19 Mar 2003
Time: 01:57:51

Message

Hi all,

Master Leung and I suggest to have a soaring trip to Ko Lau Wan 高流灣 this Saturday (22/3). Anybody want to go as well? We can gather in Pak Tam Chung in 10:00am and take the bus to Wong Shek Peir where we can then take the 10:30 am ferry to Ko Lau Wan. We should be flying at the slope at about 11:20. Bring with your lunch box and of course your models. The hike up the mountain is easy. We hope we can explore other slopes in the vicinity. Please drop me a line if you want to go.

Happy soaring!

Name: Y C Lui
Topic: Reply to Alexis : Making Ballast
Date: 18 Mar 2003
Time: 08:00:19

Message

Ah Alexis, you have just pointed out the major drawback of metal molds. The lead cast will come off easily only if you get the temperature of the mold and that of the molten lead right so that the lead contracts a lot ( about 2% in linear dimensions as it solidifies ) but the mold contracts very little. This can be achieved by putting the mold in a water bath so that the mold doesn't get heated up and therefore contract too much in the process. However, doing so will freeze the molten lead so quickly that there will be a lot of wrinkles on the surface of the lead cast. Not a problem for ballast but doesn't look very professional.

I have brought some plaster of paris ( are they really from Paris ? ) on my way home today. I will try it out tonight.

Y C Lui

Name: Alexis
Topic: Making Ballast
Date: 18 Mar 2003
Time: 07:08:30

Message

YC,

If using the brass tube as mold, the lead will easy to demold or not? I try to use metal tube before, the lead stick on the tube and can't take the lead out. 8-(

Name: Y C Lui
Topic: Making Ballast
Date: 17 Mar 2003
Time: 23:10:14

Message

Making nose weight and ballast together is a good idea. I believe many pilots, especially beginners, will be very interested. Some of the beginners I have talked to don't even know what ballast is ! If we decide to go ahead, I can make the molds with brass which is more duarable compared with Plaster of Pairs but I need to know the dimensions of the ballast tube beforehand. I have already got the dimensions for the Sting (dia 15.7mm) and the Shooting Star (dia. 19.7mm).

Let's hear some more ideas on this.

Y C Lui

Name: Stanley Chan
Topic: Ballast
Date: 17 Mar 2003
Time: 22:10:01

Message

Hi Alex and others,

We really need to make a large quantity of ballast recently as we have received many Sting, Shooting Star and MiniNYX. Are there any people who can help to make these ballast for us? or we can gather together in the flying site one weekend, learn and make our own ballast in the open area.

Name: Alexis
Topic: 自己造 ballast
Date: 17 Mar 2003
Time: 21:18:20

Message

Hi Mark, Lui,

Take a look of below link, it teach how to cast lead nose weight. http://www.rc-soar.com/tech/casting.htm

You can follw step by step. But we jump step 7, because we don't have oven, just let it dry.

We use this method for our mini ellipse, shooting star.... Also we use similar method to make ballast.

Happy landing,

Alexis

Name: Y C Lui
Topic: Reply to Mak : 自己造 ballast ?
Date: 17 Mar 2003
Time: 04:31:03

Message

Just burnt three fingers ? No problem ! As long as the thumbs are still good. you will be fine :)

Happy Soaring,

Y C Lui

Name: K.Y.Mak
Topic: 自己造 ballast !
Date: 17 Mar 2003
Time: 04:22:42

Message

我在網上找到一些有關金屬重量的資料供大家參考。

以我的 Shooting Star 的 ballast 做單位。 我正在使用的 ballast,是 6 粒 長3cm、直徑2cm的鐵條,總重是 0.98 lb

上次在中級風時已入滿了全倉6粒、相信在強風中會不夠用。 所以必須改用一些比較重的材料造 ballast。

以下是各種重金钃造 Shooting Star ballast 的比較:

Steel 0.98 lb

Copper 1.12 lb

Lead 1.42 lb

Gold 2.41 lb

原來黃金是比鉛重那麼多的。不過、我當然是用鉛啦! 有人用金造 ballast的話、請帶來觀賞一下!

我昨睌第一次自已燒鉛造 ballast,結果出事。

把鉛水倒入銅管之後,便開始整理地方。 後來一時忘了新造的 ballast 還是火熱, 一手抓起了其中一粒,結果燒傷了 3隻手指!

Name: Y C Lui
Topic: Reply to Patrick about repairing the mini NYX
Date: 16 Mar 2003
Time: 11:10:51

Message

Hi Patrick,

I am assuming that you are not after restoring the original appearance which will be very difficult, if not impossible. I have done some repairing to my Shooting Star the worst damage it has received was compound fracture of the Vtail + a broken elevator. I am now repairing my mini Corado which hit a tree at the Clear Water Bay today ( OH it hurts, the plane is so new .... ) and in all these repairs, I have been using the following method :

1) Saturate the wound with VERY thin CA glue. Where the glass skin is lifted off the balsa/foam core without cracking , cut open the glass skin before applying CA glue. This is to ensure that the CA glue will penetrate well into all cracks and freeze the wound.

2) Mix thin CA glue with baby powder and apply the mixture to the wound to fill out all dents. You will need quite a lot of CA glue in this step so it will be more economical to buy CA glue in larger packages. I brought “AA” glue in 20g package from hardware stores and it costed about $20 per bottle.

3) After the CA glue + baby powder mixture has set ( takes about 20 minites ). Sand it smooth with #100 sand paper.

4) Prepare two pieces of fiber glass cloth : a piece of 3 oz cloth slightly larger than the wound and another piece of 1.4 oz ( or 0.7 oz ) slightly larger than the 3 oz cloth. You can get 3 oz glass cloth at 國生行( opposite to the Sam Shui Po police station at the Lai Chi Kok Rd ) and the 1.4 oz / 0.7 oz glass cloth ( from Multiplex ) at 上環德昌。

5) Lay the 3 oz cloth over the wound and wet it out with laminating epoxy resin. I am yet to identify a good local supply of epoxy resin but the followings are acceptable :

a) West System (http://www.westsystem.com/ ) 105 resin + 206 hardener. Very strong but the viscosity is a bit on the high side. Takes about 24 hours to cure. Available from Piercey Marine ( Tel. 27914106 ) which is a yacht supplies shop inside the 西貢白沙灣游艇會. b) #1101 epoxy from 國生行 mentioned above. Very easy to work with due to it’s low viscosity but it takes about 2 to 4 days to cure depending on the ambient temperature. As the documentation about this resin is unavailable, I have gone through a painful process to establish the correct mixing ratio which is resin : hardner = 3 : 1 by WEIGHT.

No matter which make of epoxy resins you use, it’s essential that you get the mixing ratio accurate. You will need an electronic scale with 0.1 gram resolution for this purpose. Hey man, you are getting it too complicated ! I need to buy an electronic scale to do a simple repair job ? Believe me, if you hit the hill with your moldies as often as I do, you will never regret investing into an electronic scale.

6) Lay the 1.4 oz ( or 0.7 oz ) cloth over the 3 oz cloth and wet it out with epoxy resin. This step is merely to get a smoother finish so it's optional.

7) Wait patiently for the epoxy resin to cure.

8) Go flying.

Hope it helps,

Y C Lui

Name: Willy
Topic: 防失機警鐘
Date: 15 Mar 2003
Time: 23:35:25

Message

上環《德昌》有Multiplex出品的(電話、地址見本網頁的link)。「流動模型店」陳伯亦有其他類型的防失機警鐘賣,電9626 3809。

Name: Louie
Topic: Where can I find LMA (Lost Model Alarm) in Model Shop
Date: 15 Mar 2003
Time: 09:02:29

Message

Any help for the subject?

Thx..

Name: Edward
Topic: 遙控飛機論壇
Date: 15 Mar 2003
Time: 05:33:13

Message

小弟是初學者, 請各位教路.

Name: Edward
Topic: 遙控飛機論壇
Date: 15 Mar 2003
Time: 05:31:06

Message

小弟搞了個飛機論壇, 如有興趣, 請去吹吹水. http://www.hk-aviation.com/cgi-bin/leoboard.cgi

Name: Patrick
Topic: Repairing leadind edge of MiniNYX
Date: 14 Mar 2003
Time: 10:52:41

Message

Just a hard landing today left some cracks on the wing of my MiniNYX. What is the best way to repair it? thanks

Name: K.Y.Mak
Topic: 泊車在《沙螺洞》
Date: 12 Mar 2003
Time: 11:57:06

Message

Willy,

條車路不能去到沙螺洞村。 只去到沙螺洞前的涼亭,傍邊有一空地供汽車轉頭。 地方不大、只能停幾倆車。 從這位置有一小路上九龍坑山,假日都有不少人在這裹行山。

Mak

Name: Willy
Topic: 泊車在《沙螺洞》
Date: 12 Mar 2003
Time: 06:34:48

Message

KY,按地圖顯示,條路盡頭是條村(好似荒廢巳久),泊車在條村到,掂唔掂?有冇平地泊車?

Name: K.Y.Mak
Topic: 星期六 (15/3/2003)九龍坑山放机
Date: 11 Mar 2003
Time: 09:53:11

Message

今個星期六、會到位於大埔及粉嶺之間的九龍坑山 (Cloudy Hill) 放机。

和我一同步行上山的人,會於早上11時於大埔工業村傍的鳳園村路口集合。 車輛可停於鳳園路,然後乘座一兩架車去到位於半山的沙螺洞。 在這個小型停車位落車,再一同步行上山。

上山的路都是三四十度左右、途中沒有什麼陰位。所以太陽下行路,需要喝多些水, 但風景十分美麗、辛苦些也是值得!

步行半小時左右便可到達山頂。預計中午12時可開始放机。

有机友表示會開4WD車由粉嶺直上山頂。如有其他人也開車上去的話,要十分小心。 我上年7月開車上過去,路面又窄、又多灣、又斜、又多大小不一的洞。 部份路面有野草生長入行車道、美麗的車身行完後、要重新打臘。 看來是很多年都未經維修、可說是十分危險。 一般私家車及新手都不宜由此路上山。

天氣預測中,星期六的風向,是東及東南的4級風。很適合九龍坑山。 希望天文台今次的預測準確吧!

OK、大家同來發功,使風繼續吹!

Mak

Name: Willy
Topic: 九龍坑山
Date: 11 Mar 2003
Time: 06:10:30

Message

天氣許可的話,我會去。

KY,請再貼詳情出來,如集合地點及時間等。我收到你致Stanley的電郵,但其他飛機友可能亦有興趣去。

Name: Stanley
Topic: 4WD to Cloudy Hill
Date: 11 Mar 2003
Time: 05:18:06

Message

Wonderful! I would prefer to walk up with Y.C. Thanks Ah Pong for your help to carry our birds up the mountain, please reserve some spaces for my big birds as well. To drive up, you need to go to FanLing along old Tai Po Road. Turn to Lau Shui Heung Road near Kiu Tau and drive all the way up, be prepared to have a bumpy ride!

Name: Y C Lui
Topic: To Ah Pong - trip to 九龍坑山
Date: 11 Mar 2003
Time: 05:07:36

Message

Hi Ah Pong,

Wonderful !! I want some physical exercise so I prefer to walk but without carrying my gliders and their ballast. I will be very grateful if you can reserve some room in your 4WD for my birds.

Cheers,

Y C Lui

Name: AH PONG
Topic: the trip to 九龍坑山
Date: 11 Mar 2003
Time: 03:50:40

Message

To K Y MAK,

I would like to join. However, I am such a lazy boy who do not want to walk. You did mention that there has a way which can be proceeded with a 4 wheels drive, didn't you? I wonder if any soarers are interested to play both 4 wheels drive and sailplane on the same trip, please reply.

Best regards.

Name: K.Y.Mak
Topic: the trip to 九龍坑山
Date: 10 Mar 2003
Time: 11:38:01

Message

Hello Willy,

Chilly weather !

That's the way of life for us slopers isn't it!

I plan to go on this Saturday, and we can start early at 11am, so that we can have more flying time. That should make the trip more justify.

Are you going?

K.Y.Mak

i4kai@yahoo.com

Name: Willy
Topic: To: K Y Mak.  How was the trip to 九龍坑山?
Date: 09 Mar 2003
Time: 10:49:30

Message

Windy and freezing cold in this unusually chilly spring, I would have thought.

Name: K.Y.Mak
Topic: ¤EÀs§|¤s©ñÉ󬡰Ê(§ï´Á)
Date: 07 Mar 2003
Time: 23:04:44

Message

¦U¦ìÉó¤Í,

¤µ¤é(8/3/2003)ªº¤EÀs§|¤s©ñÉ󬡰ʡA¦]­·¦V¤£¦X¤Î¦³Ãú¡A¤£‾ন¦æ¡C

¤é´Á§ï¬°¤U¬P´Á¤» (15/3/2003)¡A§Æ±æ¨ì®É¤Ñ®ðÂà¦n¡I

Mak

Name: K.Y.Mak
Topic: scratch plans
Date: 07 Mar 2003
Time: 21:53:00

Message

Hello Scott Wilder,

Here is a very nice scratch build HLG, the SuperGee.

http://www.geocities.com/pipeline/halfpipe/4579/supergee.html

It's pity I don't have the skill to build the model!

Mak

Name: K.Y.Mak
Topic: ¤EÀs§|¤s©ñÉ󬡰Ê(§ï´Á)
Date: 07 Mar 2003
Time: 21:45:33

Message

¦U¦ìÉó¤Í,

¤µ¤é(8/3/2003)ªº¤EÀs§|¤s©ñÉ󬡰ʡA¦]­·¦V¤£¦X¤Î¦³Ãú¡A¤£‾ন¦æ¡C

¤é´Á§ï¬°¤U¬P´Á¤» (15/3/2003)¡A§Æ±æ¨ì®É¤Ñ®ðÂà¦n¡I

Mak

Name: scott wilder
Topic: scratch plans
Date: 07 Mar 2003
Time: 12:17:05

Message

Anybody know where to get scratch plans or wing profiles for hot wire cut foam/FRP bagged slope soarers?any clues would be appreciated...SW

Name: KK
Topic: Re: I want to buy Bee EPP
Date: 06 Mar 2003
Time: 01:57:03

Message

旺角卓藝還有一隻

Name: ken lam
Topic: I want to buy Bee EPP
Date: 04 Mar 2003
Time: 09:28:10

Message

請問香港有否Ele-Bee EPP Combat Wing or Bee EPP combat wing零售 ? thank !

Name: K.Y.Mak
Topic: 8/3/2003 星期六去九龍坑山 ( Cloudy Hill ) 放机
Date: 02 Mar 2003
Time: 23:46:38

Message

這個星期六下午(8/3/2003),我們會去大埔與粉嶺間的九龍坑山 ( Cloudy Hill ) 放机。 位置及詳細資料,可參考以下網頁。

http://www.rcsail.com/OtherSitesC.htm

現有四個人去,其他有興趣者也可按圖自行上山, 不識路者可與我連絡,一同上去。

i4kai@yahoo.com

我今次不會由粉嶺開車直到山頂,而是開車到沙螺洞半山,然後步行。

與我一同上山者,可於2:15pm在山下的鳳園路路口集合,位於大埔工業村對面馬路(到李錦記之前轉左)。 大家準時於2:30pm 開車上沙螺洞涼亭的停車位。 因車位只有三幾個,如果人多,可把一部份車停於鳳園路,集中坐兩三架車上山。 在沙螺洞停好車後,步行半小時山路就可到達。 請自己帶食物及水(水要多些)。

Mak

Name: KK
Topic: 星河模型 Address
Date: 01 Mar 2003
Time: 10:14:48

Message

新界葵涌葵喜街 13-29 號永恆工業大廈 8 字樓 5 號室

Name: Patrick
Topic: 星河模型
Date: 01 Mar 2003
Time: 09:59:02

Message

What is the address of 星河模型? thanks!!

Name: Patrick
Topic: 星河模型
Date: 01 Mar 2003
Time: 09:58:46

Message

What is the address of 星河模型? thanks!!

Name: Y C  Lui
Topic: Ordering of composite materials
Date: 01 Mar 2003
Time: 06:08:33

Message

Hi guys,

I am planning to order from US some 2 oz glass cloth which is the most common type of glass cloth used in our gliders but they are rather difficult to get in small quantity here. I will be ordering from either of the following two vendors :

http://www.fiberglasssupply.com/ http://www.johnrsweet.com/

If you are also interested in getting this type of glass cloth or any other composite materials ( e.g. carbon and kevlar ). Pls let me know by email : yclui@netvigator.com.

Y C Lui

Name: K.Y.Mak
Topic: 新手"放"飛機
Date: 19 Feb 2003
Time: 09:30:47

Message

Hello Edmond,

I don't think it's anything to do with the plane you're flying. When you need is someone to help you on setting up your plane, and teach you how to fly for a few rounds.

Just go to Clear Water Bay on Saturday or Sunday evening, and ASK someone to help. Most of us are very happy to give you a hand.

Mak

Name: K.Y.Mak
Topic: 高流灣 flying
Date: 19 Feb 2003
Time: 09:25:23

Message

Stanley,

When will be the next time you go to 高流灣 ? I would like to fry on some new location too. I enjoy the trip to Grass Island very much. so, count me in for the 高流灣 trip.

Mak

Name: Stanley Chan
Topic: 高流灣相片
Date: 18 Feb 2003
Time: 07:44:30

Message

Hi, I have put up some photos and discriptions about Ko Lau Wan (高流灣) flying site in the web, here it is

http://www.rcsail.com/OtherSites.htm#Ko%20Lau%20Wan

Want to go there?

Name: Willy
Topic: 新手問題
Date: 17 Feb 2003
Time: 21:06:39

Message

見 Homepage 的 Help File。

Name: Edmond
Topic: 新手"放"飛機
Date: 17 Feb 2003
Time: 13:33:53

Message

想請問初學者應該買什麼裝備?例如什麼型號的飛機和遙控最適合?除飛機和遙控,還需要買什麼工具?一定要買電池箱嗎?到哪兒購買比較好?價錢若多少?(最好平靚正啦) 我朋友在深圳買了一架有螺旋槳在前的低尾滑翔機連一個AM遙控,價錢$400.這種機適合初學者嗎?我同佢玩過這架機,我地玩左兩分鐘唔夠架機就飛左去後山唔知邊度...搵左兩個鐘都搵唔番,不過我地都"放"得好興奮...請各位高手多多指教!

Name: Willy
Topic: (1) 高流灣;及 (2) 《黃石碼頭》泊車
Date: 17 Feb 2003
Time: 08:50:20

Message

Stanley, seems there's sufficient interest. Shouldn't we organise a trip there the coming Sunday?

昌記海鮮酒家 in 高流灣 (tel: 9746 9292) told me they could apply for vehicle entry permits for us if we wish to drive to the pier for the ferries to their restaurant in 高流灣. My understanding is that each inhabitant is entitled to apply for 5 vehicle entry permits for visitors.

I suppose this can be sorted out at the time of the table booking sometime midweek when the weather forecast for Sunday is available, if indeed we're going the coming Sunday.

Name: Y C Lui
Topic: 有新場地﹖好啊﹗
Date: 17 Feb 2003
Time: 06:15:09

Message

如成團的話﹐記著預埋我一份。

Name: FE
Topic: 高流灣
Date: 16 Feb 2003
Time: 13:14:29

Message

Hi Stanley,

十分有興趣呢!有沒有相片給大家分享?

Name: Willy
Topic: 高流灣
Date: 16 Feb 2003
Time: 13:06:55

Message

好,不過記住《高流灣》那間《昌記海鮮酒家》,又話有人訂位才會開門營業,電話 2328 2478,2328 2377,2792 8019 及 9746 9292。要在《高流灣》開餐頗麻煩。

Name: Stanley Chan
Topic: 高流灣場地
Date: 16 Feb 2003
Time: 12:35:55

Message

星期六到高流灣對上山坡一行後,發覺這堣@帶向東的山坡都是很適合玩滑翔機的。在微風下這個斜岥所產生的升力非常好,我架MiniNYX飛到頂好,升力卓卓有餘。附近雖然有少許石塊阻礙降落,這個斜坡可算極皆。怎樣去?好容易:到黃石碼頭搭到塔門的渡輪,在高流灣落船後沿岸邊小路到蛋家灣方向行再轉上一條新開通的黃泥路上山。步行全程只需15分鐘左右,非常易行。有沒有興趣試試這個斜地?

Name: Willy
Topic: 赤徑
Date: 16 Feb 2003
Time: 10:34:41

Message

赤徑青年旅舍有住宿設施,每人每晚$45,見 http://www.yha.org.hk//chn/services/hostel/bradbury_hall.htm

Name: Willy
Topic: 西貢《大浪西灣》
Date: 16 Feb 2003
Time: 03:49:54

Message

建議從《黃石碼頭》搭船去《赤徑》,然後行去《大浪坳》個向東山坡飛《大浪西灣》。

似乎「滑翔降傘」都有在該處附近的《西灣》飛東北風,見 http://www.glink.net.hk/~hkpa/Site_2_0.htm 。有關描述並非完全清楚,但應是在《西貢西灣路》盡頭的《西灣亭》行上山,然後起飛。

Name: Stanley Chan
Topic: Another soaring trip
Date: 14 Feb 2003
Time: 02:10:23

Message

我相信高流灣對上的山坡是可以放滑翔機的,有100多公尺高的斜坡和西向東大鵬灣而無阻擋。從高流灣碼頭行上去應該只須5至10分鐘路程,各位飛友有沒有興組團一探這個可能很好的場地?

Name: Stanley Chan
Topic: RF noise due to static charge
Date: 14 Feb 2003
Time: 01:58:10

Message

Well, static charges do create spikes if they are not handle properly. The spikes would have wide spectrum for which some energies may fall into the used rf channel. However, I don't think it is serious at all as the inband energy and duration of the spikes are too small to affect the modulated PPM signals. Gounding has little effect on static charges as the charged are built up in non-conducting material such as plastic, however, it may help to limit the electric field stength if the ground is placed nearby the charges and thus minimize the chance of strong spikes.

I guess a better gound loop actually help to achieve a better reception of rf signal rather than to minimize the effect of static charges.

Name: Kevin Lam
Topic: RF Noise elimination for avoiding jam?
Date: 10 Feb 2003
Time: 12:10:58

Message

If electrostatic induced on part of sailplane or helicopter whatever which is not fully conducted with teach parts, is it possible to occur RF jam itself?? How do u avoid it? I have heard that some people try to make the whole plane being conducted first, ie. no potential difference in the whole plane, and then use a wire to connect the ground of the RX or batteries to the plane to avoid the RF jam. does it useful??

Name: Willy
Topic: 繼《塔門》後,HKRCSS下次可去那裡?
Date: 10 Feb 2003
Time: 09:24:24

Message

「阿玉」話他試過《海下》附近之《爐仔石》,該處適合滑翔機,可坐小巴由《北潭涌》前往《海下》後再步行去該處。

另外,《高流灣》碼頭對上的山頂,看地圖似乎幾好,但不知有否地方降落?

Name: FE
Topic: AoA and stall
Date: 29 Jan 2003
Time: 19:39:16

Message

Oh thanks I enjoy stalling when spinning the plane!!

Name: Danny
Topic: AoA and stall
Date: 28 Jan 2003
Time: 08:50:15

Message

Woo... what a great pleasure to have joined such interesting hobby. Not only is it exciting when flying the plane, but it is also interest to learn the theory behind, experiment and trim up every aspect of the plane so as to squeeze it's maximum potential :D

Happy stalling :p

Name: FE
Topic: AoA and stall
Date: 28 Jan 2003
Time: 08:01:24

Message

Oop big question! My opinion is, if you want to increase speed, add ballast. This increases both the sinking rate and the speed. As long as you have good lift, you can gain the speed by adding ballast.

Usually we adjust incident angle to suit CG for sensitivity / stability.

So is the speed increase if incident is set smaller? I think the answer is yes. It is the same as you push down the elevator to gain speed. Consider an all moving tail, you are setting the incident on the fly!

Happy landings !!

Name: Danny
Topic: Stall and AoA
Date: 28 Jan 2003
Time: 07:36:39

Message

Sorry everybody, the following post is from "Danny". I mis-typed "FE" there :p

Name: FE
Topic: Stall and AoA
Date: 28 Jan 2003
Time: 07:35:24

Message

Again really thanks FE for correcting me. But put it simple, will the air speed change if I decrease the angle of incident (while all others being the same, including wind direction/speed, air mass, plane weight.... etc)?

Name: FE
Topic: Stall and AoA
Date: 28 Jan 2003
Time: 06:08:09

Message

Hi Danny,

I'm sorry but there maybe some confusion. Attack angle is the angle between the chord of the airfoil to the air stream. The angle between the chord and the tail (or the aircraft's longitudinal axis, I am not sure) is called incident angle.

So incident angle is what we can "set", while attack angle is related to the attitude and velocity of the aircraft, which we cannot "set"!

During normal gliding, a powerless sailplane is always falling when reference to the air, and so the attack angle is positive even if the incident is set to negative.

TTYL:)

Name: Danny
Topic: Stall and AoA
Date: 28 Jan 2003
Time: 04:28:34

Message

Thanks FE. That's exactly what I've experience.

On the other hand, I am thinking of increasing the air speed by reducing the AoA. For a powered plane, the engine thrust is converted into lift by means of +ve AoA (and also the pressure difference between wing top and bottom if not symmetrical airfoil??). But for a glider, it is hold in the air merely by the up-blowing wind under the wing. So I stupidly guess that I could reduce the AoA to 0 degree to reduce drag while not harming the up-lifting force. On windy days, I could even set AoA to a little bit -ve so as to increase stability and/or reduce stall situation. Just my 2 cent :o

Name: FE
Topic: To Danny - Stall
Date: 27 Jan 2003
Time: 21:31:24

Message

Hi Danny,

For "maximum up aileron", do you mean elevator?

It is possible that a wing can stall in "high speed". Stall is caused by excessive attack angle (not low speed!). When you pull the elevator abrupty, some planes may stall even it is diving in a high speed. In fact it is only the pitch changed but not the flying direction. This results in too much attack angle and the wing stall.

So input small elevator first. When you see the flying direction changes, input more to tighten the loop. I hope this helps.

Happy landings!

Name: Danny
Topic: Air brake
Date: 27 Jan 2003
Time: 04:57:38

Message

Dear all,

I've just flown my first molded plane - MicroFloh. Thank Master Leung for helping me trim the CG and controls.

Now I would like to ask - without real flaps (e.g. those moldies like Prodji / Mini-NYX), do you prefer using spoileron or flaperon to slow the plane down? What is the effective deflection angle? I really have difficulty landing such fast rabbit...

Also, when I do a normal-sized loop, it seems ok. But when I apply maximum up-aileron during a dive, the plane seems gone crazy and just go sideway and stall. Is this normal or it's my plane's setting? Thanks all plane masters...

Name: Robin
Topic: MiniCar (Jocky2)
Date: 18 Jan 2003
Time: 11:21:08

Message

Nothing to do with RC models i think...? I feel the car you are thinking of is very popular in Rome,Italy. It is called "SMART", the company that makes them is losing money on these cars so maybe wait a few more years to see if they continue, if they get cancelled you've got no spare parts..!

Name: KK
Topic: 遙控器膠箱
Date: 15 Jan 2003
Time: 01:39:48

Message

昨天在旺角卓藝見到一個JR的遙控器膠箱,可放JR/Futaba 的發射及後備電等東西,不怕撞斷發射上的開關,很好用的,有興趣的去看看

Name: jocky2
Topic: Where can I buy mini-car with only two seats?
Date: 13 Jan 2003
Time: 21:04:50

Message

I saw it on cctv. it said that in Italy' Romer street. lots of mini-car can be seen. that kind of car is very fit to me. I want to buy one for myself. E-mail:jocky2@sohu.com

Name: jocky2
Topic: Where can I buy mini-car with only two seats?
Date: 13 Jan 2003
Time: 21:02:45

Message

I saw it on cctv. it said that in Italy' Romer street. lots of mini-car can be seen. that kind of car is very fit to me. I want to buy one for myself.

Name: ken
Topic: Aero-towing
Date: 13 Jan 2003
Time: 11:35:07

Message

I still feel that the tow line should be a elastic line. After the tow plane launched, it started to build up speed in the first flying distant equal to the line length. Ater this distance, if the line is not elastic, a very large force will be added on the line due to the sudden pulling of the towed plane. This make everything difficult to control. However, if the line is a week elastic line and the towed plane sitting on a stand with supports on its wings. The force added on the line will start to increase from zero, this will make everything smooth. As the tow plane is still flying to pull the line, the line will be kept extended and the hook will not release so easy. So I feei that after using a elastic line, the hook release device will not be necessary. If anybody has experience on this, please give us a hints.

Name: Y C Lui
Topic: Something unusual took place at Fei Ngo Shan today
Date: 12 Jan 2003
Time: 13:14:00

Message

It was supposed to be a rather boring day for soarers as the wind was very mild and there were just a few pilots flying their floaters at the south-facing slope. I was flying my HLG and Ken, as usual, flew his electric glider.

Things took a drastic turnaround when Master Leung showed up and came up with a weird idea. He saw Ken’s electric glider as a tow plane and my HLG the glider to be towed ! At first, everyone was skeptical about the idea as neither plane was set up for such operation and the required accessories such as tow hook and tow line were unavailable. There were also the uncertainties of whether Ken’s electric glider was powerful enough, whether the tow line can be unhooked at the right time and etc

However, Master Leung has such a magical power to influence people that the guys gradually became supportive of the idea and started digging into the trunks of their cars to look for the materials needed. The result was a 3mm bolt for making the tow hook , a piece of metal wire for making the tow ring and a roll of cotton string to be used as the tow line.

The first launching attempt almost ended up in crashing the tow plane. The tow line was incorrectly attached to the plane’s tail making the elevator control totally ineffective once the line was stretched. After moving the attachment point to the top and right over the C.G. of the tow plane, things began to go the right way. Ken’s electric sailplane had no difficulty to take my HLG to flying speed and we were able to keep both planes under comfortable control throughout the process. The only problem remained was that the tow line always got unhooked prematurely in the air.

It has been a very fascinating experience for all of us and we will try again in the near future ( may be next week ? ) after a remote-control tow line release mechanism is built into my HLG.

The photos of this unconventional aero-towing attempt are posted at http://www.geocities.com/yclui_hk/aero_tow.html

Cheers,

Y C Lui

Name: Stanley Chan
Topic: Shooting Star aileron hinge
Date: 09 Jan 2003
Time: 06:40:53

Message

Well, if you use a piece of fiber glass cloth and stick it to the aileron with EPOXY, it is unlikely that it will work well. Since after the EPOXY has cured, it is solidly hard and the aileron can not be flexed. You may like to make a silicon hinge for which unfortunately my experience is so far not very successful. Another possibility is to find a very thin plastic paper and cut it into pieces to use them as hinges, those plastic folders will do. Cut the paper into pieces with rectangle shape. Tape a centre strip, about 2mm wide, with masking tape in both sides of the hinge and epoxy the hinge into place, once it is cured, remove the masking tape so that the hinge can be flexed as the strip does not have expoy there. My other lazy alternative is just to tape the aileron with fiber tape. Good luck!

Name: Y C Lui
Topic: Reply to Ah Pong - about fixing the Shooting Star
Date: 09 Jan 2003
Time: 05:47:08

Message

Hi Ah Pong,

I feel so sorry about your poor Shooting Star . . . . Just the other day I saw it’s nose ripped off ruthlessly at Fei Ngo Shan and now it’s the aileron to take the hit ?

Unfortunately, I don’t have the answer to your question and the only thing I can share with you is a method that I have tried on the elevators of my Shooting Star but it did NOT work. In case you have the same idea in your mind, I would suggest you to forget about it and try something else instead.

What I have done was very trivial. I just epoxied a 0.7 oz fiber glass tape along the hinge line thinking that if the original fiber glass hinge works so well, so will the one that I put on. Much to my disappointment, the new hinge survived just a few deflections before it whitened up and finally split. The method just didn’t work and I am curious why. What was the original hinge made of ? some special kind of fiber and resin ?

Can I invite Stanley to offer some advices here ?

Y C Lui

Name: Y C Lui
Topic: Reply to Lam - Dishonest model shop ?
Date: 09 Jan 2003
Time: 04:11:01

Message

Hi Lam,

I agree with Robin. I have purchased from Radar a few times and did not feel anything wrong with their service or price. In fact Radar is often the first shop I go to when I want to buy Futaba's products as they keep a relatively complete stock and their price is reasonable even without the special discount offered to our club's members.

It is quite possible that they have charged you the incorrect price just by careless mistakes. May be the lady in the shop has clicked the wrong item on the computer screen. May be the price has been incorrectly entered into their computer.

I would suggest you to call Radar to clarify this matter rather then carrying this unhappiness with you forever.

Y C Lui

Name: Robin
Topic: Dis -honest shop (Radar) / Lam
Date: 08 Jan 2003
Time: 12:28:35

Message

If you feel you were cheated by a RC shop maybe it would be better to call the shop directly to find out why you were charged so much, maybe they ripped you off,-maybe not......Before making such claims on an International forum i suggest you check all the facts & not just agree with what a friend say's, friend's can be mistaken, maybe you bought the wrong Tx's, may-be they ripped you off.........Find out the facts any-way. Wishing you lots of good soaring in 2003....!!

Name: Ah PONG
Topic: help !!!
Date: 08 Jan 2003
Time: 07:02:33

Message

Dear big brothers, please help. My shooting star's aileron was deteched from the wing recently, which I am not sure what method would be the best way to fix it. I know many masters in here know how to make a sailplane themselves, please give me some advice. many thanks.

Name: RCboy
Topic: to stanley chan
Date: 07 Jan 2003
Time: 03:08:44

Message

I think Stanley should change the "help files" section name to something call "New to hobby" etc. such that novice can check some basic info, setup or shops instead of asking repeatly in this forum. And I think most masters here (not me) would like to help them if the question is not asking what a servo is.

Name: Yeung
Topic: Dishonest RC Shop
Date: 05 Jan 2003
Time: 21:08:09

Message

Dear Mr Lam, First I would like to declare that I am independent and am not connected to Radar. Have you checked that whether you are buying a "pair" of crystals and are they "dual conversion set". Better find it out yourself and compare the apple to apple.

Regards

Name: Lam
Topic: Dishonest RC Shop in HK Prevented the Sports' Development
Date: 04 Jan 2003
Time: 14:00:06

Message

I a beginner with the sport. I recently bought 2 pieces of Futaba Tx FM crystals from the R/C shop Radar at TST at HK$195. Latter, a friend told me that I should pay for only between HK$90 to HK$100 the most. It is a ripe off !! Be careful if you are doing business with this shop.

Name: Y C Lui
Topic: JR's new radio : PCM 9X
Date: 02 Jan 2003
Time: 01:22:47

Message

Hi Guys,

I am planning to get a JR 8310 transmitter to replace my antiques but I learned from some local pilots yesterday that JR is going to discontinue the 8310 and replace it by the new 9X !

I have subsequently done some searching in the internet and found that this info. was nothing new as the subject has already been extensively discussed in web forums such as RC Universe ( thread location : http://www.rcuniverse.com/showthread.php?threadid=73096 ).

I wonder if anyone knows :

1)When will 9X be available in Hongkong ? Which retailers ( so. . . 永利 is not on the list ) will be the first to sell the radio ?

2)Will there be any retailers doing clearing sales for 8310 at attractive prices ?

Thanks,

Y C Lui

Name: Yeung
Topic: Thanks for all the helping hands
Date: 01 Jan 2003
Time: 21:10:03

Message

My heartly and sincerely thanks to all those fellow fliers at Clear Water Bay site yesterday in resecuring my Eraser on the top of the tree. Special thanks to Kam, TC Cheng, Mr Nip (a passing-by who lent us the wooden beans, Ringo, Pui, Chung, the gentleman with a Red and blue Bee without tiplets, my wife, my brother and my litte nephew, and all others un-named.

Thanks and wish you nice guys all happy landing and a prosperous year in 2003

Name: Darren
Topic: How about Minij
Date: 01 Jan 2003
Time: 18:15:23

Message

請問一下Minij這台飛機的性能如何,適合的風速範圍,還有翅膀夠不夠堅固等 跟Prodij比起來有哪些差異呢?看起來蠻類似 謝謝回答


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