Mailing List flyrotary@lancaironline.net Message #21408
From: Russell Duffy <13brv3@bellsouth.net>
Subject: RE: [FlyRotary] Re: CVT (continuously variable transmission)
Date: Wed, 4 May 2005 20:01:03 -0500
To: 'Rotary motors in aircraft' <flyrotary@lancaironline.net>
Message
Why would you want a CVT on an airplane? The interface between the prop and the air is where you need to change things.
Bill Schertz
 
It looks to me like it would serve as a PSRU, and constant speed prop at the same time. 
 
As for the prop being what you want to change, I'm not so sure about that.  I think it just might be the only thing that we've ever had the ability to change.  With the diameter of the prop fixed, reducing the pitch mainly helps climb because it allows the engine to run at a higher, more powerful rpm.  The CVT would do that with your normal cruise prop.  
 
It's all probably a dream at this point, but something for future consideration.  Perhaps an RD-1CVT?  Heck, after seeing the unadvertised improvement in my latest EM-2, I half expect my latest RD-1C to be a CVT when it shows up in a day or so  :-)
 
Rusty (wondering if John ever got his latest EC-2 for torture testing)
 
  
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