Its turning a 12x6 apc prop which is what the engine manual says to use. My flight area is about 2 acres and heavyly wooded so I have about 150 feet to land this plane coming over 30 feet high trees. so as soon as I clear the trees I cut the throttle off and by the time it decends I dont have a choice but give throttle to climb for a second try. If I can use spoilerons I can drop the plane out of the sky down to 5 6 feet high then I can use the limited runway that I have. I dont know its just hard for me to land this plane. wish I was living in an area with no trees and a huge runway.