I'm using the OS .32 with zinger 12-4 wooden prop on 20% nitro. hitec HS-81MG's all around and a micro receiver and 6v battery . I also have made a few mods to the tail including larger elev and rudder. Removed the wing tips and made the wing bolt on rather than rubber bands. RTF weight less fuel is 3.5 lbs.

this combo is a blast to fly and hovers about 3/4 stick.

Hank