Mailing List flyrotary@lancaironline.net Message #66483
From: Charlie England ceengland7@gmail.com <flyrotary@lancaironline.net>
Subject: Re: [FlyRotary] Re: Ross Redrive se ex se
Date: Thu, 26 Nov 2020 21:54:09 -0600
To: Rotary motors in aircraft <flyrotary@lancaironline.net>
A good friend of mine is building up a Corvair & planning an Air Trikes gear drive for it. No bending loads on the crank, lower BMEP, higher HP, more prop dia for mass flow efficiency, etc.

The plane is a major mod of a Bushby Midget Mustang I with retracts. He picked the Corvair after finally deciding that the BMW V12 was a bit much for the airframe.
;-)
Charlie

On 11/26/2020 9:38 PM, Ernest Christley echristley@att.net wrote:
What you're missing is that I've been working on Corvairs more than rotaries lately, and should probably remain quiet on the subject.  :-)




On Thursday, November 26, 2020, 6:09:42 PM EST, Stephen Izett stephen.izett@gmail.com <flyrotary@lancaironline.net> wrote:


Why is that?
Tracy made the comment that even the 2.85 which I have is only really useful for props >than 74”
Which I understood to be about the tip speed being to low and inefficient with  smaller diameter.
I dont want to spin my engine more than 7500 rpm.

What am I missing?

Steve





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