RE: First flight of F-20
I don't have any rpm readings, but I think I was running a little rich mixture. As the gas went down during flight, it started leaning out. Once it started to lean out it really started moving! I used a 10x6 prop which seemed to give it great vertical, even when not at full throttle. I think the TT Pro .46 is still a great motor for this plane, even though a lot of people go with a .50 or higher.