lcfitt(at)sbcglobal.net
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 Posted: Sun Aug 29, 2010 8:12 pm Post subject: Propeller Best for Kitfox IV Classic |
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Sounds Good, Steve.
Lowell
From: Catz631(at)aol.com (Catz631(at)aol.com)
Sent: Thursday, July 08, 2010 5:35 AM
To: kitfox-list(at)matronics.com (kitfox-list(at)matronics.com)
Subject: Re: Propeller Best for Kitfox IV Classic
Lee,
This is an interesting subject. I had the Warp on my Kitfox and removed it for the Kiev. I was told that I would get better, smoother and quieter operation then the Warp. I saw it on some Highlanders and was thrilled with its beauty ! (still am) Its about 1 lb lighter than the Warp.
However after several pitch changes with it I have found it to be no better in speed than my Warp was. It is however turbine smooth and extremely quiet! It has to be much easier on the gearbox as they claim. It is a dramatic difference! Most aircraft have a speed increase with this propeller. As an example a Paradise P1 in our area with a smooth cowling had a 5mph speed increase going from a Warp to the Kiev. It is fast anyway. I believe the reason I didn't get an increase is due to the radial cowl on my Kitfox. The twist on the Kiev starts real early as you move away from the hub. This jams air down the open radial cowl thus increasing drag. My oil temp dropped almost 10 degrees when I put the Kiev on the plane.
I am going to keep my Kiev as I do like its smoothness and have not lost performance.
I have come to believe,however,that the Ivo might be the best overall prop in terms of speed as it is flexible. It sure isn't pretty though. Looks like a model airplane propeller and has stick on tape leading edges rather than a nice inlay as on the Warp (brass on the Kiev)
The Warp is a really tough prop, made well. I have mine hanging on the wall of my hanger in case I were to decide to go back to it in case I broke a blade or something on the Kiev.
Anyway, that's my opinion.
Dick Maddux
Fox 4
Milton,Fl
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