> It's 29 and snowing here in SE Michigan. For me it's a good day to
> learn
> something new. About this G loading of a KR wing, I guess I really
> would
> like to learn more, especially since my KR is over 20 years old. It
> doesn't
> have wing skins, just the one's I made. I thought that in flight
> the air
> traveling over the curved upper surface caused low pressure on the
> bottom NO! THE TOP SURFACE!
> surface and that's what caused lift. As a pilot I learned that in a
>
> climbing turn, that one wing is closer to stall then the other, and
> also
> that in a pull up, the wing panels transfer the lifting force, what
> ever the
> G's to the spars and in particular for the KR, the attach fittings.
> Such
> that in an overloaded +G condition the force acting on the wing
> would be NO! UPWARD!
> downward as the fuselage trys to pull up. In this situation I
> always
> thought the forces were pushing down on the top of the skin.
> NO! PULLING UP! Following that
> in a -G condition, the wing would try to continue to fly with lift
> from the NO! TOP!
> bottom while the fuselage trys to force downward, NO! UPWARD!
causing the wings
> fold in
> failure. I would think that as the spar bends, that the adhesion of
> the
> skin to the spar would act to prevent the bending. I can see where
> gluing
> the wing skins really good is important. I can't see where the
> force to
> lift the skin from the spar comes from.
> Please rethink your + and - G Forces
> As you will note, I present this as things I would like to learn,
. Orma>
Always good to keep learning, Virg
>
>
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>
Virgil N. Salisbury - AMSOIL
www.lubedealer.com/salisbury
Miami ,Fl
