KR> [CorvAircraft] Prop

itch of the root and the pitch of the tip and depends on the drag of the plane. Or to sum it all up, it is PFM and black magic and the formula, as Mark says, does not always fit, it is a rule of thumb to get an approximation only. Original Message Subject: Re: KR> [CorvAircr

KR> [CorvAircraft] Prop

At 09:32 PM 6/12/2016, you wrote: >That equation has never worked for me either. The only way the equation can be in error is if the "inches of pitch" on the propeller, as stated by the manufacturer, doesn't actually relate to real world performance whic

KR> [CorvAircraft] Prop

At 08:30 PM 6/12/2016, you wrote: >Mine cruised at 155mph with a 54X54 and 2700CC at 2950RPM. ++ A 54 inch pitch propeller running at 100% efficiency would only make 151 mph at that RPM. Either your tach or ASI were in error or my math teacher in

KR> [CorvAircraft] Prop

That equation has never worked for me either. If it makes anybody feel any better, Joe Horton reminded me today that he can reproduce 180 mph TAS on a regular basis, and his ASI system is well calibrated. He also has a nosewheel out front. Temperature and altitude are factors, and of course RP

KR> [CorvAircraft] Prop

Ray, Mine cruised at 155mph with a 54X54 and 2700CC at 2950RPM. See N64KR at http://KRBuilder.org - Then click on the pics 2016 KR Gathering - Mt. Vernon, Ill. Peoples Choice at 2013 - KR Gathering in Mt. Vernon, Il - MVN Best KR at 2013 - KR Gathering in Mt.