Lgel
I was in the building room of a friend, he was building another 3,5 m ws all wood glider, one of the marvels he astonishes us with.

He handed me one of the wings he was finishing, and what struck me is that the ailerons and flaps fell from their own weight to the down position, wing up or upside down. Oracover (thermal shrink plastic covering) used for hinges.

Wonder why his servos very rarely fail?

I am ashamed as my own clumsiness as a builder.

Cheers.
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SukhoiLover
Don't be--no one in here (and there are some VERY talented people) started out at the top of the food chain. The strength of this forum is the fact that pilots and builders can grow in an environment that nurtures self-betterment. Everybody shares.

Besides, now you can see if you can adapt his hinges in your own creations. After all, if you're gonna steal ideas be selective!

Fly safely,

SL
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Grantman
Doculam works well for zero-resistance hinges, and so does RTV silicone once you get the technique down.
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quorneng
I have to agree about hinges or rather how people have to rely on servo power to overcome "stiffness"!

The ultimate for me is a control surface that is glued directly to the servo arm. Absolutely no linkage losses!
The direct drive servo completely 'buried' between the Depron wing skins of my 3/4 size Depron Ballerina.
DirectServo.JPG 
The servo itself is the inner hinge. There is pin (literally) hinge outboard.
No protruding horns or links.
AilNoHorn.JPG 
Apart from any benefit in aerodynamics there is also nothing to get caught!
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bogusbandit56
Quote:
I was in the building room of a friend, he was building another 3,5 m ws all wood glider, one of the marvels he astonishes us with.

He handed me one of the wings he was finishing, and what struck me is that the ailerons and flaps fell from their own weight to the down position, wing up or upside down. Oracover (thermal shrink plastic covering) used for hinges.

Wonder why his servos very rarely fail?

I am ashamed as my own clumsiness as a builder.

Cheers.

I wouldn`t worry about that, depron is about 5 times lighter than wood so the DWT hinges I use are strong enough to hold the depron control surfaces in position with very little resistance for the servo.
I understand what you are saying some people are just masters at building and painting.
Wot, no Depron?
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Lgel
Quote:
I wouldn`t worry about that, depron is about 5 times lighter than wood so the DWT hinges I use are strong enough to hold the depron control surfaces in position with very little resistance for the servo.
I understand what you are saying some people are just masters at building and painting.

With your experience in building, I don't doubt your hinges are well done.
Most ARF are servos and ESC killers.
Cheers.
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bogusbandit56
Quote:
With your experience in building, I don't doubt your hinges are well done.
Most ARF are servos and ESC killers.
Cheers.

Agreed, I had to modify the elevons on my Skywalker Falcon. The mouldings left the hinges far to stiff.
Wot, no Depron?
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