OS 91 DF
Just wondering:
What brand of prop does one use on an engine like this?
Standard 12" APC Sport props (or any other sport prop) are not designed to do 20000 rpm I think.
Also, isn't 6" pitch a little too low for going really fast? Wouldn't a 10-8 or 10-9 be faster? Or would that be pushing a plane like the Patriot too far?