1st Lt Mac,

I have had three of the Brillelli engines. the 25cc, 26cc, and the 40cc. I currently have the 26cc on a GSP Giles 202 swinging an APC 17X6 prop at 8400 rpm. The plane weighs 12.5 + lbs and it flys great. It will not 3D the plane but for sport or aerobatic flying it's great. You can't go wrong with a Brillelli engine. The engines run great and the support is unmatched by any others.