Re: An-124 and wing dihedral

Date:         29 May 98 02:43:38 
From:         "Donald Mc Lean" <cowboy@ram.net.au>
Organization: Mittagong Mania - http://www.mitmania.net.au
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Andrew Cruickshank wrote in message ...
>With a high wing position on a large 4 engine transport aircraft
>like a C-5 or An124 the anhedral is used to introduce some
>instability to counteract the high stability of the underslung
>mass in the fuselage ...

Are you sure it has anhedral in the air. There is a big weight to support
and the wings bend as also does the C-141. Sit behind it on the runway on
take off and watch them bend to what is probably a dihedral position. The
B747 at max weight on take off also bends up considerably as it gets
airborne resulting in a considerable change in the chord line and requiring
a substantial retrim while maintaining V2.

cowboy