ORIGINAL: hairy46
Getting ready to start my ems p47 what engine and servos are most using? I do have a ys 140
I'm in a bit of the same dilemma. I need to do some HP calculations to feel good about this. I had intended to install a 31.5 cc Stihl 4-mix 4 stroke conversion I did. It runs fine, and the weight is reasonable, but I don't know how much HP this thing is developing. It runs an 18-8 at about 7500rpm. I'll need some power because the plane, with 3 retracts, will weight over 18lbs.
I have the opportunity to get a Zenoah G38 cheap. What do you guys think of that?