Arne, they certainly look better, since nothing is much uglier than a
control horn sticking up. Another reason is that to get enough up
deflection, the gap would have to be very large if bottom-hinged and create
unwanted turbulance. If top-hinged, very little gap is needed to allow down
deflection.
I think you are a prime candidate for eliminating any control horn,
backplate, clevises, keepers, output arm, threaded rod, exit guide, etc.
by using the all-internal, Rotary Driver System to operate the ailerons.
See http://www.proptwisters.org/rds2/ for details. See the SOURCES page. I
have a supply of the couplers on hand.
----------
> From: Arne Ansper <[EMAIL PROTECTED]>
> To: [EMAIL PROTECTED]
> Subject: [RCSE] why are ailerons top-hinged?
> Date: Wednesday, May 23, 2001 8:06 AM
>
>
> hi!
>
> simple question: why are ailerons top-hinged? i have two explanations:
>
> 1) they look better this way
>
> 2) since the pushrod is usually on the lower side of wing one can use
> shorter control horn (by the thickness of the aileron), to achieve same
> throw that helps to reduce drag somewhat.
>
> since i'm putting the pushrod on the top of the wing i would like to put
> the hinge to the lower surface. are there any aerodynamical consideration
> which make the top hinged ailerons with continous upper surface more
> desireable?
>
> arne
>
>
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