What Oscar is talking about here is called "getting on the step," much like cruising in a boat. The idea here is that with a fixed pitch prop, if you overshoot your altitude just a little bit, you can let the engine pull just a bit more RPMs while settling back down to your cruise altitude. More RPMs equals more HP and the little bit of additional HP should allow you to maintain just a little more speed in cruise.
I've played with that quite a bit and would agree that I can get a bit more cruise out of the plane that way. But in general, I'm just not that good of a pilot as I'm up and down in altitude and the first time I have to climb just a bit, that tiny bit of gain in speed is now lost. I'm working my way through the annual inspection on the KR this week. Had a couple of funny misses in the engine this weekend that didn't make sense to me and the mixture on the carb just didn't seem to be working normally. When I pulled the lower cowl, the air box came off with the cowl leaving only the mounting flange mounted to the carb. Yeah, it was telling me it wasn't happy. Glad I heard it talking, not that it would have quit, but I knew it didn't feel quite right. -Jeff Scott Arkansas Ozarks > Sent: Tuesday, April 28, 2020 at 5:49 PM > From: "Mike Sylvester via KRnet" <[email protected]> > To: "KRnet" <[email protected]> > Cc: "Mike Sylvester" <[email protected]> > Subject: Re: KR> climb to cruise transition > > Oscar, I do a hard climb to around 5000ft. and then pull the O-200 back to > around 2500 RPM while lowering the nose a bit for a cruise climb. After > reaching 10, 11 or 12000ft I stop the climb at desired alt. I usually end up > cruising at 2530 RPM, It just seems to find this spot … Less noise and > purring like a kitten. > > Mike Sylvester > kr2s builder > Birmingham,AL. > > Cell no.205-966-3854 > > ________________________________ > From: KRnet <[email protected]> on behalf of Oscar Zuniga via > KRnet <[email protected]> > Sent: Tuesday, April 28, 2020 3:29 PM > To: [email protected] <[email protected]> > Cc: Oscar Zuniga <[email protected]> > Subject: KR> climb to cruise transition > > As long as there is a discussion about climbing to cruise, here's one for you > high-altitude cruisers. > > Oscar Zuniga > Medford, OR > Air Camper NX41CC, A75 power _______________________________________________ Search the KRnet Archives at https://www.mail-archive.com/[email protected]/. Please see LIST RULES and KRnet info at http://www.krnet.org/info.html. see http://list.krnet.org/mailman/listinfo/krnet_list.krnet.org to change options. To UNsubscribe from KRnet, send a message to [email protected]
