[trafficinsight]

Originally Posted by nosehair

...or, "how can I stay in the air the longest at the lowest rpm?"

I am not trying to go anywhere, I am building flight time.

or, if I go at 2400 rpm and get there in 1 hour, and get charged 1 hour, but if I go at 2100 rpm and get there in 1.2 hours but get .9 on the tach, and get charged .9, but get to log 1.2 actual flight time...that's what he is attempting to find out.

I used to do that - back when it was common to charge on the tachometer - before Hobbs meters showed up in trainers.

Actually, sometimes, I would climb the little Cub up to 6 or 7 thousand feet, at full power, but at lower than cruise rpm, over an old abandoned airport in Florida, and pull the mixture, shut down the engine, and glide down to a landing on the old airport. I'd get maybe .3 on the climb, but actually fly .4 or .5.

Yeah, it's nickle-and-dime, ...but when that's all ya got, it worked for me.

That works

What I was attempting to show was that pulling it back a lot doesn't make a whole lot of difference, and usually means you end up paying more, not less.