And you will never find a better person to deal with than Ed Sterba. No one else is going to repitch and refinish your prop for free if you want to change it.
Brian Kraut Engineering Alternatives, Inc. www.engalt.com -----Original Message----- From: [email protected] [mailto:[email protected]]On Behalf Of Mark Langford Sent: Thursday, December 07, 2006 10:59 PM To: KRnet Subject: Re: KR> props Solly Melyon wrote: > I had tried several wood propos on a Super Pulsar 100 with an IO240 up > front. the Sensenich was the best bang for the money. Did you try a Sterba? Sterba sells props for around $400 (I believe it is) for the KR, and they work well. Sensenich sells their KR prop for about $750 or so. They are similar in performance, from my experience. My 54x54 Sensenich is more of a climb prop, so I can turn it up to about 3650 rpm at low altitude WOT, but get about the same speed out of it as my Sterba at 3300 rpm under similar conditions, but slightly less climb performance. That's a classic "climb vs cruise" prop compromise, so at this point I can only surmise that a Sterba prop is a better deal for my purposes (given the price), and I do like the idea of going the same speed but turning 350 rpm less. I would think that lower rpm would be better on the engine, and if I get the same speed out of it, I'd call it good. I have to throw in that a guy at Sensenich once told me that "a Sterba prop is hard to beat". By the way, the one thing I'd change about the recent Sport Aviation article is the comment about the Sterba vs the Sensenich performance. I don't know where that came from, but I'm pretty sure I ever said that my Sensenich was 13 mph faster than my Sterba. Even if you picked up those two data points from two different places, there would have to be a lot of different factors involved to keep them from being very similar in performance. I didn't write or influence that article in any way, and never got a shot at proofreading it...or it wouldn't have said that in the end... Mark Langford, Harvest, AL see homebuilt airplane at http://www.N56ML.com email to N56ML "at" hiwaay.net _______________________________________ Search the KRnet Archives at http://www.maddyhome.com/krsrch/index.jsp to UNsubscribe from KRnet, send a message to [email protected] please see other KRnet info at http://www.krnet.org/info.html
