Subject: Electric CS props
From: paul lamar
Date: 3/17/2017, 12:19 PM
To: A10-Me-Earthlink


   Meanwhile, I have a serious question about props. How difficult
   is it to put a CS prop on a Wankle? I'm a bit puzzled about where
   one would put the prop-governor -- oil or electric.

   I've only just gotten some intro A&P books to read (because of
   the orals for a Commercial Pilot's License).

   And I too am thinking twin engine.

   Regards,
   Steve Thompson

   It is real hard or expensive to put a CS on a Wankel.
   Bottom line is you don't need it. Set your pitch for cruise and
   due to the exceptional power to weight ratio it will take off fine.

   Paul Lamar


   What about an electric adjustable? I believe it's ben haas  that has the ford stroker engine in a maule an is using a cog tooth belt psru and has an electric in flight adjustable on his that looks fairly simple. He has a video on YouTube that shows his set up.
   https://youtu.be/rCNnEgRkdXc

   Rob Miller

   Yes they will work. They are $10,000 and up. More than the engine and gear box.

   Paul Lamar


   Lol ok that shot that in the butt, didnt realize they were that expensive.
   I have been curious though not so much for the adjustable
    but more towards beta props for seaplane/amphibian  use .


   Rob Miller

   That you need.

   Some of the guys on here built one years ago.
   I did some of the design.

   Paul Lamar

   The BETA system on a PT6 is interactive with fuel, control/rpm, all you need is a reversing prop, like the SeeBee
   came with standard, for water use.

   Steve Carlisle


That's what I was meaning sorry a out the confusion. Reversing prop not beta, I always see them referenced as beta props when they are talking about the sea/amphibious. Tentatively, not sure how large or how any blades would be needed, but figured I would wait till I have something to put it on before I worry about it.

Rob Millor

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