So I recently got a greatplanes edge 540 1.60 size it recommends 32cc to 43cc gas engine what do I run? There's only 30 35 cc and 50cc no 40cc?? 35 seems like it would be under powered anyone else have this airplane?

40cc Engines weigh about the same as 50-55cc engines, just go with a 50-55cc like in the link below.

http://www.youtube.com/watch?v=vD-loGRGsBA

Milton

You can use the Valley View RC 40cc twin. It is a fantastic engine.
http://www.valleyviewrc.com/estore/v...as-engine.html