ORIGINAL: AncientCityFlyer

Leedees, I agree with Skillet92 that the .91 would fly it, but marginally. I have a GP P-6 Hawk and the manual called for a 91 4 stroke. I originally put a Saito 125 in it and it flew ok. Finally changed out to a Saito 180. I agree it is a bit over powered but it keeps me out of trouble with the extra power. I can't see how a .91 would have flown the Hawk and it weighs more than the WACO. I'm not saying go as big as a 1.80. I think a 1.20 size will do just great. Just MHO.

Mike (ACF)