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Not a weight problem
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The trim adjustment to fix a "heavy wing" is usually much greater. So it can not be from a physical weight difference. What Carl said is right. The three biggest culprits are incompletely formed trailing edge bend, height of the aileron upper surface with respect to the wing upper surface, and warping/drooping of the fiberglass wingtip because it was attached with the ailerons out of rig. |
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Or, they secretly put in a cam that has increased valve overlap and the decreased vacuum and allows the power valve to open and richen the mixture through the power valve channel restriction in the metering block that have been opened up to cover the up the lack of fuel running through the too small main jets because they installed a too large of a max CFM carb :D |
Lots of good advice.
First of all though....make sure the ball is centered! https://www.vansaircraft.com/pdf/Wing_Heavy.pdf |
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