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Piper cub 1/4 scale wing washout


New to GSN!
Can anyone help me calculate the amount of washout to install in wing tip.
I have 2 deg pos at center section when I installer struts, I ended up with 4deg pos at the tip I know that's wrong.
I think I should try to get it to 0 deg at the tip. Can anyone help?


You want less incidence at the tips so that the stall occurs near the fuselage rather than the tip. You are correct you looking for zero at tip. Two degrees is a normal amount.