rpm
rc guy,
Those are pretty amazing rpm numbers. Jett says his 76 FIRE turns an 11X7 at 14,800 and his 95 FIRE turns an 11X7 at 15,800. An 11X8? That's a lot of prop. To turn one of those at 20.000 rpm on the ground is quite a feat.
Where did you find the narrow blade 11X8, I didn't see it on the APC prop list? How much more rpm does a narrow blade give over a standard sport prop.
Is the engine able to turn those rpms reliably without burning up pistons and liners every other flight?
20,000 rpm with an 11X8 would probably make that engine the single most powerful motor per inch of displacement that I've ever heard of.
I will have to look into getting one!