i made a plane like spaded lc 40 but with epoxy. wing is made with profile of avistar (semisymetrical).
now the question is:
when i put the wing on the cabin (top) of plane, must be a chord line symmetrical with plane or wing is set on cabin with their aft part. in this case the angle of attack is little up.
sorry for my poor English but please help.

realdo

You are asking about wing incidence? If so you need to set the incidence so that it neutral or slightly positive relative to the horizontal stabs incidence. Maybe .1 -.2 degrees positive incidence to start. I would set the plane up and level the horizontal stab both front to back and side to side, then set the wings incidence from there, as far a I know wing incidence should always be set relative to the stab.

Mike

I think that starting at zero, relative to the horizontal stabilzer, is the best bet.

Set chord line symmetrical with plane and stab also or the plane will climb excessively at full power.

Thanks a lot to all

Realdo