Mailing List flyrotary@lancaironline.net Message #21764
From: Ed Anderson <eanderson@carolina.rr.com>
Subject: Re: [FlyRotary] Re: 9.7 Rotors
Date: Wed, 11 May 2005 19:16:34 -0400
To: Rotary motors in aircraft <flyrotary@lancaironline.net>
Message
I can honestly say I came up with it myself - or at least I don't recall anyone ever using this method.  I did it when I had all three compression rotors and looking at them couldn't tell much difference.  So the light bulb went on and I decided that the depth of the depression was probably less for the higher compression rotors (I guess they could have enlarged the area - but apparently did not).
 
Ed
----- Original Message -----
Sent: Wednesday, May 11, 2005 4:57 PM
Subject: [FlyRotary] Re: 9.7 Rotors

Ok, Georges, found my notes.  for the 9.7:1 the depth is 4mm.  9.4:1  is 5.5mm and the 9.1 is 7 mm.
 
Ed 
 
Did you come up with this, or read it somewhere else?  I just checked a 9.4 and a 9.7, and it seems to work.  
 
Thanks,
Rusty (squirreling this little tidbit away) 
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