Hi all,
I was having a discussion with a friend recently; we had different opinions on which way the wing flexes when using up elevator.

The plane has a Delta wing with (2) Elevons at the end. Computer mixes the Elevator and Aileron inputs.
You can see the picture on the link below
http://www.parkzone.com/Products/Def...ProdID=PKZ1200

So when giving full up elevator on that plane, does the wing flex up or down?

Thank you all in advance,

Gryphon

Up.


David

The elevon alters the camber of the airfoil but to do the inside loop you still need the wing to generate positive G's so it flexes up. However the gross camber change caused by the up elevon control likely also introduces some RELATIVE trailing edge lowering twist. The trailing edge and elevon still flexes upward but not as much as the forward part of the wing.

Thank you both.

So a piece of 3M Extreme tape (side to side) across the top and another one on the bottom will each help stop/reduce the flex in either direction. Along with a C.F. tube (side to side) under the foam wing.

Gryphon