RE: Designing a plane just for the wind
Symmetrical or semi-symmertrical wing. 23 or 24 oz wing loading. Plenty of engine. Wide forward landing gear stance; tail dragger. Non "3-D" rudder (just normal instead of enormous). No dihedral if shoulder or mid-wing. Maybe 2ยบ if low wing.
Hmmm. I just described a Giant Super Sporster.