Hi there guys,

I'm sure that i'm repeating a topic that has already been killed to death in this forum, but if you don't mind, I would really like to hear your opinion. I am planning on building a Coal Hauler funfly with a recomended engine size of .25 to .40. I would like the build the aircraft with the best power to weight ratio. What engine would you recommend I install???

have you got any tips on how I can save weight when building the aircraft and also particularly on the muffler.

THanks!!!