Thanks all for your recommendations on the engine. This is the first kit that my son have attempted. It sounds somewhat daunting but the fact that the instructions appear to be complete we are hoping for a good result. We have watched an older gentlemen at Pegusus R/C Club in Hagerstown MD fly two of the Extra 300s and we were impressed. My son is about to solo on his trainer next week so we know that it will take some time before he is ready for this bird. I am someone what digitally impaired, but I love to build things. I will report back on the Tower .46 once he gets the plane up. We bought the motor on the cheap because my wife is watching the expenses mount with our new hobby. I hope I was not too cheap. I am not a flier but have been designated as maintenance crew and chief investor. Gosh this is an expensive hobby, but oh how addicting it seems to be. My son can't wait to get to the airfield over golf, soccer, swimming or any other sport. I like to go out just to watch the planes fly.