Moose, if your are going to use a prop with 7 of pitch, use the 10x7, your gonna over-heat the engine with the 11x7 in due time, trust me. I think the best prop for that engine is a 10x6. It's a lot easier to ake off and land, and u can go vertical with it. Try that with a 11x7 Also, if you want to do maneuvers, high speed, put in a 9x8, you'll be living life Later

~Vik~