Even if I had the Yak I would tell you that adding a 6 pound engine will make it a disaster. The plane is not meant for that much weight, it wouldn't last. The Sukhoi is much stronger and has a lot more wing area.

TF

Suhhoi or Edge are the two best choices here. Yu seem to want a round cowl so the Sukhoi it is. Just keep the C/G on the money and go play, but don't look for 3D performance at all. Just too heavy, but will do the sport thing fine.

There are provisions in the fues for rudder servos near the tail...... That will transfer some weight aft.

Thanks guys, the Sukhoi sounds like it will be just what I want. I'll try to keep it as light as possible, when I get it done I'll post a video of it with sound.

This is such a cool hobby, here I am a sailplaner at heart, that loves engines, so I fly power planes with oddball engines. Go figure.[:-]