tamir_250,

The 26cc thru 40cc make plenty of power. It all depends on what you fly and how you like to fly it. I know a lot of guys are flying the OS 160 in these size planes and like glow but not everyone likes glow or flys 3D. It is a fact that gasser or cheaper to buy, the fuel is cheaper, they or more economical and last longer, there is no need for a glow igniter or battery, and the sound is just unmatched. The little 26cc gasser is gaining popularity and has hit our hobby like the plague in the 120 thru 140 size planes so look for more to come.