Works for me. I am an old school student of use the biggest engine you can and keep the rpms low to avoid engine wear based on my automotive experience but in relationship to R/C planes I may be all wet. I do however see reports of persons trying small high speed props and end up shearing off the crank pin. I like the idea of a large engine grunting along getting the job done (just recreational flying no 3D or all that jazz) turning out torque to pull the plane and a big prop to grab the wind. thank You for the input. [8D]Jeff