Fallalloveryou
Member
I have fixed prop on my RV-9 and 0320 -160 hp engine. At takeoff wot I get 2450 rpm and at level flight WOT I get 2550 RPM with less Mp. I am happy with this cruise prop but since I don't get redline 2700 on level flight I don't know how to determine where 75% power is for leaning etc. Can I assume that if 2700 is 100% than the wot 2550 rpm cruise is 85% and therefore 2450rpm would be 75% power and 2350 is 65% power etc.
Somebody once said the at level flight 75% power would be about wot rpm less 10% which would put 75% power at 2300 and 65% at 2200. Not sure how to resolve this. Any ideas anyone?
Somebody once said the at level flight 75% power would be about wot rpm less 10% which would put 75% power at 2300 and 65% at 2200. Not sure how to resolve this. Any ideas anyone?