RC Slope Soaring in Hong Kong

Yes, agreed but for powerless glider, this is not possible


Agreed, but we might need aileron/rudder/elevator mixing for some aerobatic maneuver.


Agreed, but I think another factor such as low drag is equally important for glider


Agreed.


Agreed.


Partially agreed, but we might need large rudder to perform aerobatic move such as slow 4-point roll.


Strongly agreed!


Strongly agreed!


Strongly agreed!


Partially agreed, but we need low drag airfoil for higher energy retention which is contradictive to thick airfoil


Partially disagreed, symmetrical airfoil is only suitable for power models. For gliders, we need to accumulate energy with lift generating airfoil (asymmetric).


Agreed, but backward cg may be too jerky to control. To my experience, MG06 type of airfoil with very backward cg is a good choice for both normal and invert flight.


Irrelevant, if stability is not a problem. In fact I believe short tail moment is an advantage for aerobatic maneuver.


Totally agreed.


Totally agreed.

Stanley,

Just one comment: we usually see long tail moment in F3A pattern planes. I think there must be some advantage in this design.

[quote="Henry Tso"]
花式飛行大概要多少隻機一齊飛呢？機種、SIZE和顏色是否要全部一樣？我很想參加，如果你地要求用

[quote]Stanley,

花式飛行大概要多少隻機一齊飛呢？機種、SIZE和顏色是否要全部一樣？我很想參加，如果你地要求用

我各得Phase 6 是一隻好機,因

[quote="F Fai"]我各得Phase 6 是一隻好機,因

我曾經見過有位師傅係和緩風飛隻Phase 6, 正反飛無分別, 做four point同slow roll都好出色,"circle roll?"無問題照做,睇到我眼都凸埋

其實仲有冇 Phase 6 賣? 又或邊位可借出圖紙開料? 聽 George 形容都幾有與趣

CM,
嘩!CM你唔使訓咖 機主應該有圖紙係手,問拒借里用用應該無問題,其實我都好想擁有一隻,不過由於原裝也是KIT,自問手功嘛嘛都無把握切得好。

CM

[quote="F Fai"]CM

Phase 6's picture:
http://www.sussex-model-centre.co.uk/po ... se%206.jpg

[CM quote]

貴唔貴真係幾難答，因為依家真係冇乜專玩花式既滑翔機作參考，可能因為冇動力好多專門或複雜既花式都做唔到，相比下一 D 高性能既 60 inch 或 PSS 更為有趣。

以前英國的 Phase 系列係好流行的花式機，港產既 Lark II 都唔錯(外國雜誌都有讚)，依家我所知有 Aeromod 既 Voltij 同 Toons，仲有阿 Mak 講既 Kulbutin 係專門既花式或 3D 滑翔機，其他真係唔知啦 [/quote]

CM

我覺得Phase 6 和 Kulbutin 兩隻機都好靚仔，但邊隻好飛

Stanley,

你有冇考慮到點樣排隊形，因glider是冇動力，想飛快

"炒埋一碟"先至係戲肉

Stanley,

I agree with Henry. I think it is really difficult to keep a formation flight by using R/C planes, especially gliders. Just thinking about using three planes for a "triangle" pattern, even flying a round trip is difficult. The plane flying at the outside track has to fly FASTER to keep the triangle pattern.

I think if we can do a good formation flight is already a big achievement, and is already exciting to the audience. Doing aerobatic can be the next step.

I understand that to fly formation is very difficult for gliders. I would say it is possible only in a short period of time when the planes fly pass in formation in front of the slope. Away from the slope this is even more difficult.

I don't think
"炒埋一碟" is an issue because all these planes are travelling on the same direction with similar speed, even there is a collision, it will only be a minor problem with little or no damage.

Once we managed to do formation flight closed to the slope, we can practice aerobatic such as roll. Let's see what we can achieve!

Something like this:
http://www.windrider.com.hk/image/easy_pattern.mov
I would like to offer a very special discount for 12 pcs Easy Pro for this formation test.

Tsz Ming

[quote="Henry Tso"]Stanley,

你有冇考慮到點樣排隊形，因glider是冇動力，想飛快

You are right, the air brake can make the speed slow down but cannot make the speed fast as the planes are not going straight all the time. You can imagine how the pattern looks like after turning. Just like what CM said, the outside one must fly faster than the inside one. Otherwise, it cannot keep its position after turning eventually. The only solution is changing another pattern after the turning but we have to make a planning and try.

Stanley,

" Specifications:

Wingspan 80 in.
Wing Airfoil Selig 6061
Stab Airfoil Selig 8020
Wing Area 620 sq in.
Wing Loading 16 oz/sq ft (unballasted)
Controls Elevator & ailerons
Construction Hollow-molded fiberglass, carbon fiber and Kevlar

http://www.advancedmodelproducts.com/ca ... 5634419845

The price is HKD$800 only

Dear all,

Just see this in RCgroups' forum.



video:
http://www.rcgroups.com/gallery/sho...&cat=500&page=1

Thread:
http://www.rcgroups.com/forums/showthread.php?t=422043

Regards,

Dear all,

just see this video from Web, and wanted to share with you.

http://waitak.net/jumbo32/fish003.wmv

(point on it and right click and select 'save as')

regards,