Regarding the question of a 26cc power.... I am flying a 540 EdgeT Lanier it is an old plane with 14 pounds of weight, I remember that I askhere in RCUwhat kind of propeller to use because the 18x8 was not doing it job,someone recommends to use what they call the best of both worlds 17x8N (APC) 7800rpm and it was the answer to my problems, I’m not a hotdogflyer but I like to do some stuff, not enough powerto do 3D, now I’m flying my Edge 75" 25% with good power that came from my RCGF 26cc,the engine Ihave isone of the older versions with many many hours on it, I bought use it and still good.I have read that this 26cc engine will performgreat between 10 to11 pounds range.<o></o>