???

Im confused. I was always taught a .46 (40 sized) engine should have a 10x6, or 11x5 or at most a 12x4 (Presumably 9x8 if you want to go the other way).

Dont mean to hijack the thread, but am I running too small a prop on my .46FX?? (10x6)

To qualify this, I get PLENTY of speed out of my trainer with a 10x6, and vertical is GREAT!! (Wont hover, but it will climb almost unlimited in about 75 degree up angle, and it is a trainer after all..)