OS 1.60, Saito 1.80 or a YS 1.40 Sport or DZ.

This plane dosen't have the wing area to fly the way its supposed to with a gas engine. Every gasser from 25cc to 50cc weighs the same readt to fly (3.5-4lbs). Thats a ton heavier than an OS 1.60.

Its a monster with any of the glow engines listed above. It can do 3D and precision flying.