RE: Dynaflite 81" Spitfire
Thanks for the reply. The 12 lbs that I was estimating was considering the mfg. claims 10 1/2 to 11 lbs, so I just added 1 lb. for retracts, covering and paint. That was probably not enough. The engine compartment is really small on this airplane. I'm not sure a Saito 150 or 180 would fit. The plans show a 120 4 stroke, but I'm thinking that would be marginal. I'm running a OS 160 in a Great Planes Extra 300, Bison Pitts muffler and Perry pump and APC 18x6 wide. It's awesome. What muffler are you using? On board glow?
Thanks,
Richard