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Old Nov 17, 2012, 08:22 AM
Sopwith Mike is offline
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Slip the surly bonds...
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Christchurch,England
Joined Aug 2004
3,121 Posts
I think I misunderstood your earlier PM question about sheeting and top hinges.

The system I use is based on Ivan Pettigrew's and is illustrated below. There is no need to sheet the upper surfaces of wing or aileron. The wing sub-spar and the aileron spar have soft block inserts to carry the hinges. As long as the hinges are angled as shown they can be let into the very top of the surfaces, but it is often better to lower the hinge line to 25% or so of the spar depth and chamfer the spars to allow free movement.

I always set up the ailerons to have less down throw than up: about half?

Mike
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