I have a homeless OS 120 4 stroke engine. I am thinking about putting it on a 4*60. I can manage my throttle so it does not tear up the airframe. I can also put both elevator and rudder servos near the tail to balance at the recommended CG.

One alternative is 4*120. But I am afraid that combination (120 4 stroke for a 120 size airplane) may be a little under powered.

I would appreciate your comments about putting OS120 on 4*60. Thanks in advance.

Onewing