----- Original Message -----
Sent: Thursday, March 12, 2009 4:30
PM
Subject: [LML] Re: LOP vs ROP Climb: Time
and Fuel Burn (LIVP)
Chuck said,
So,
if you are going to reduce power, between MP or RPM, it is better to
reduce MP since higher RPM keeps PP lower, at least that was their general
conclusion, supported by engine shop experience.
I agree at high
power settings for the reasons cited, but once you get down to cruise
power settings, if you are going to reduce power further, reducing rpm removes
some friction component while reducing mp does not. therefore you should
get better mileage by lowering
rpm.