Hey guys,
Ive got a busted up .25 eaglet which i wanna rebuild. I hvae never flown this plane as it was given to me that way, but i want to make it so it can go as fast as possible. Ive got two engines a .40 la and a .25 sf. I would prefer to use the .40 la but im not sure about the prop clearence. (As a rule of thumb what is a good space between the prop and ground?)
Also because this is a small plane im afraid that the engine might be a bit to powerful for it. Because the plane was built for low speed what will i have to do to make the plane will remain stable even at faster speeds?
One more question which prop should i use for this plane (.40 la) a 11-5, 10-6, or 9-8?

Thanks alot,

Papa