Mark,

I am running a Brillelli 40GT with a APC 20x8 prop and I am getting 7100RPM and 18lbs of thrust. This engine is on a CMP Giles-202 that weigh's 12lbs 10oz dry. The plane is a rocket and fly's pattern stunts very nicely. 3D is out of the question because the wing loading is to high. The wing area on my Giles is not enough to support 3D at this weight. I have less than 1 gallon of fuel run threw the engine so far and I am hoping to be getting around 7500 once the engine is broken in. I hope these #'s help you. The Brillelli 40GT is a awesome engine and I love mine. Here is a pic of the first test run.