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PostPosted: 25 May 2007 02:50 pm 
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Joined: 26 Feb 2004 07:54 pm
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Location: Tai Po, HK
隻電機落左地之後?係唔係唔可以推油架?

星期四 landing時,隻電 Filip 係飛鵝山?極都唔見
因為冇裝 BB, 就試?推著個摩打黎聽聲。但都係無聲氣。

?左成個鐘至?返!發現個摩打完全無反應。
到底係咪我當時推油、推死左個電變呢?

我隻 Filip 真係應左"紅顏多薄命"
第一次飛佢個日,就整壞個 Canopy 同 Spinner。
第二次去飛,成 set 槳連 collets 自已飛?去。
得個摩打係個機頭空轉!
今次就連電變都死!


我好鐘意呢部機,點都要醫返佢架。

呢個正好係比我為佢,重新建立一個動力系統既時機。

我想隻 Filip 保持輕身既特點,以便玩熱汽流。
所以想轉用 brushless motor 加小型 Lipo 電,大約 350mAh

但係隻機都會要黎飛北賽。所以 10秒鐘之內要可以產生極大升力,飛到我視力可及既高度。
我會帶 charger 同後備電去比賽,打算每 round 都換電,所以對電既要求係高輸出、底容量(輕)

請各電機高手比 D 意見我!

多謝!多謝!

Mak


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PostPosted: 25 May 2007 06:49 pm 

Joined: 02 Aug 2004 10:14 am
Posts: 621
Hi Mak,
I believe the origianl setup is more than enough for contest and for fun. With brushless, the plane will be out of sight in seconds, then you have to cut off the throttle and challenge your eyesight.
Investing in lipo cell is a good idea to reduce the sinking rate.

If you are looking for the feeling of vertical launch, you would like to invest in a bigger and visible plane!! Remember the last LMR contest, the $$$ plane just use seconds of power from the $$$ power train.

In the coming LMR contest, let's consider if we can have a class of S400 classic motor or a class limited by wingspan. In Europe, there is still a popular class for S400.


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PostPosted: 25 May 2007 08:20 pm 
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Joined: 26 Feb 2004 07:54 pm
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Location: Tai Po, HK
Yeung wrote:
Hi Mak,
I believe the origianl setup is more than enough for contest and for fun.

In the coming LMR contest, let's consider if we can have a class of S400 classic motor or a class limited by wingspan. In Europe, there is still a popular class for S400.


都好呀!
不過成個 internet 都


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PostPosted: 25 May 2007 09:55 pm 

Joined: 02 Aug 2004 10:14 am
Posts: 621
To get an exact 36mm is very rare. As far as I know, only 34, 35, or 38 are available from various manufacturers nowadays.


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PostPosted: 25 May 2007 10:04 pm 
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Joined: 26 Feb 2004 03:51 pm
Posts: 3624
Location: Hong Kong
阿麥,搵個岩既套好難架!唔使咁嘛繁啦!据短支野佢咪攪掂囉!


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PostPosted: 25 May 2007 10:56 pm 

Joined: 09 Sep 2004 04:57 pm
Posts: 688
喂喂喂!!!!作你死唔記得仲有隻獎品F5J咩!蝦!仲整乜鬼吖!!!!!通常呢D野三次就搆掂,你睇我隻RACE M,一冇電大抄一獲,二大風LANDING機身開兩件,三飛出去無控死埋,佢以經收倒風有新人接手,以經準備同你離婚,唔好免強喇!!冇幸福嫁!!我比你隻機用30MM SPINNER 呀!仲平D呀!!!


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PostPosted: 25 May 2007 11:06 pm 
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Joined: 26 Feb 2004 03:51 pm
Posts: 3624
Location: Hong Kong
哎!我都係咁話!唔夾你既機都係早D同佢離婚好。好似我隻大蕉咁,嫁左去台灣之後都唔知幾happy。阿麥,一於咁啦,我出10文,免強收留你隻Filip,還掂佢未嫁比你之前已經比C.M.玩到殘灑啦! :lol: :lol:


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PostPosted: 26 May 2007 09:37 pm 

Joined: 09 Sep 2004 04:57 pm
Posts: 688
依也!!!!CM原來係錦既人....人地頭淡湯比佢X咗!!我無啊麥噤大方嫁!!第一次.....自己黎啦!!!!!


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PostPosted: 26 May 2007 09:43 pm 

Joined: 09 Sep 2004 04:57 pm
Posts: 688
如果隻機運去垃圾站果時,記得分類處理,機身放啡箱,機巽放藍箱,環保D呀!!啊麥!!!!!


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 Post subject:
PostPosted: 27 May 2007 12:28 am 
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Joined: 26 Feb 2004 05:08 pm
Posts: 2941
Location: Hong Kong
隻Filip雖然係一隻設計簡單既飛機,但用料和手工絕不馬虎,我可以說,架Filip的生產商係擺左個心落去造佢出來。

用心做的飛機,有心人自能領會。

如果composite F3X值100分,我會亳無保留俾100分隻Filip,講真,F3X都唔係隻隻做得靚。

我好高興隻Filip傳到阿麥手上。


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PostPosted: 27 May 2007 01:09 am 
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Joined: 26 Feb 2004 07:54 pm
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Location: Tai Po, HK
Yeung wrote:
Hi Mak,


In the coming LMR contest, let's consider if we can have a class of S400 classic motor or a class limited by wingspan. In Europe, there is still a popular class for S400.


Hi Yeung,

The original motor looks like a 280 or 300 motor. It was smaller than the motor than came with my Electric Bee.
The original setup runs with a 4.8:1 gear box and a 10x5 folding propeller.
It was OK for competition, but I would like to have more power.
If I change the motor to a S400 motor. How much weight will it add to the plane ?

I need a new set of power plant.
What do you recommand ?


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PostPosted: 27 May 2007 09:26 am 

Joined: 02 Aug 2004 10:14 am
Posts: 621
I don't have any info of your plane.
If it is already good with a geared 300 set up, then a 400 motor geared at 4:1 should work well and probably overpowered!
Or get a faster gearbox??

If you still want brushless system, I would recommend using the original gearbox and get a short (say hackler B20S series, 2mm shaft to fit the pinion gear).
Or just an outrunner brushless motor, no gearbox anymore! Sorry I don't know much about outrunner)


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PostPosted: 27 May 2007 07:52 pm 
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Joined: 26 Feb 2004 07:54 pm
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Location: Tai Po, HK
There is a gear attached to the motor itself.
If I change the motor, should I epoxy the gear to the new motor ?
Image

The original motor is 25mm in diameter. Is that a 280 motor ?
Image


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PostPosted: 27 May 2007 08:17 pm 
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Joined: 26 Feb 2004 05:08 pm
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Location: Hong Kong
It is an S300 motor.


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PostPosted: 27 May 2007 08:18 pm 

Joined: 02 Aug 2004 10:14 am
Posts: 621
Hi Amk, I think it is a 300 motor.
Looks like it is a fairly deluxe gearbox, It has worm gear!!
If you can take out the pinion carefully, you can mount it on the new 2mm motor shaft by securing it with some STRONG red Loctite (screw glue). Very very strong !!

I wonder if you switch to a 400 motor, you may need to upgrade the "rondo" esc.


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PostPosted: 27 May 2007 08:27 pm 
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Location: Hong Kong
The motor and the gear box come in one set. It is made by Aeronaut.

http://www.aero-naut.net/301.html


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PostPosted: 28 May 2007 05:18 pm 

Joined: 02 Aug 2004 11:34 am
Posts: 309
What's the wing span and the net weight (no RC & drive unit) of the plane. The original unit seems to be a very good unit for the plane in terms of $$$.

Hit topics now moving to e-powered gliders for LMR. Are we going to have a contest in coming months? Ah Kin how about your F5J planes. On production for everyone with a nice price?
Or you'll set 1 up for every contestors to queue up and TRY it!


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PostPosted: 28 May 2007 07:39 pm 
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Joined: 26 Feb 2004 07:54 pm
Posts: 1660
Location: Tai Po, HK
I found this site with a Filip V tail version, but it should be the same as my.
http://www.newcreations-rc.com/ProductD ... r=PELVGLID


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PostPosted: 28 May 2007 08:00 pm 
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Joined: 26 Feb 2004 06:07 pm
Posts: 632
Location: Hong Kong
Ah Mak

Aircraft World 有 Aeronaut parts 同 35mm MPJ spinner。上去買方便個出模型店,三四日就寄到你門口。

http://aircraft-world.com/shopdisplaycategories.asp?id=90&cat=folding+props


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 Post subject:
PostPosted: 28 May 2007 09:40 pm 

Joined: 09 Sep 2004 04:57 pm
Posts: 688
我隻f5j要六月中才到大家手中,會員只須約$5xx,但只限約十隻,不得


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PostPosted: 29 May 2007 12:59 pm 

Joined: 02 Aug 2004 11:34 am
Posts: 309
Mak,
For a 60" plane at that weight, the 300class geared unit be enough for fun fly and cruising in dead air. A 400 class geared unit be better for LMR but be careful on gear ratio and prop selection to minimize torque roll for easy launch.
Gear ratio from 2.8 to 4 be good choice.
The ESC come with your 300unit will not support the output Amp for a 400class brushed motor.
If your Rondo ESC is still OK, try to replace the 300 motor with an Align 350motor (avail at Ah Kin's), which comes in as a direct drive unit with 2 prop. Just keep on using the gear unit. There should be a great improvement with less than HK$120.
For expensive choice, Hacker B20S is excellent if you also want to invest on a brushless ESC. Cost be at least ten times of this while you may get a launch height at 2 to 4 time more.


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PostPosted: 30 May 2007 10:37 am 
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Joined: 26 Feb 2004 07:54 pm
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Location: Tai Po, HK
BigYeung wrote:
The ESC come with your 300unit will not support the output Amp for a 400class brushed motor.
If your Rondo ESC is still OK, try to replace the 300 motor with an Align 350motor (avail at Ah Kin's), which comes in as a direct drive unit with 2 prop. Just keep on using the gear unit. There should be a great improvement with less than HK$120.


Hi Yeung,
Thank you for your suggestions.

If you are going to arrage some S400 competition. I'll keep running the Filip with burshed motor.
However, my Rondo ESC was dead, and the Spinner running on the filip is a oversized 38mm, which looks too fat on the nose of the plane.

I had placed an order with HobbyLoby for a new 36mm spinner. I wish it'll arrive in a few days time.The filip will look much better with that new nose.
I've a Futaba 20A ESC on hand, so I'll give that a try with the old 300 motor. If it's still week in power output with the more powerful ESC, I'll then give the Align 350 motor a try.


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