The 46AX with an 11x5 prop is more than enough for the Funstar ... its a nice plane to fly. The plane is also very easy to build with no real issues, only issue is use the wood blocks to guide the throttle push rod properly so that the wing does not push against it. If you want to really enjoy 3D why not try a profile, they are lighter and 3D a lot better than a plane with a full fuse.