Bulent Aliev wrote:

 Be wary of prop blades made by Warp Drive!

 I bought a Warp Drive 3 blade adjustable prop for my 160 HP Cozy
3, several years ago. They
 assured me that the prop was "tested for both pusher configuration
and the HP requirements," and I
 bit! I spent several weeks fitting the prop to my Cozy (new
spinner, extension fittements, and,
 etc.) The first flight was just at dusk at an uncontrolled field.
I adjusted the blades as per
 their instructions to get the proper static numbers. Took off and
at climb out heard a howl that
 reminded me of a tomcat in heat! I did a go around and landed. To
my horror, two of the blades had
 warped (cracked) at the hub. I contacted Warp Drive and was told
that they would take back the
 prop (less a 10% restock fee), After some words (not appropriate
for this forum), I figured this
 was the best deal I was going to get. I then ordered a 3 blade

>from Clark at Performance Props. It

 has performed flawlessly for 350 plus hours.
 Let the buyer beware!

 Ron Kidd
 CozyIII N 417CZ
 C 210 N 210 WK

   I am very surprised as I have put 1000 hrs on my coot pusher with a
Warp drive and have had no problems with it.

  Ken Welter

I think it has to do with the torque reversal of the four cylinder 
Lyc's Ken. They are death on all kinds of props. The rotary is much
easier on props as the torque never goes negative in the
two rotor or above.

Paul Lamar
 
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