Mailing List flyrotary@lancaironline.net Message #3587
From: Russell Duffy <13brv3@bellsouth.net>
Subject: RE: [FlyRotary] Re: True Displacement of the 13B rotary Egnine
Date: Tue, 7 Oct 2003 12:59:34 -0500
To: 'Rotary motors in aircraft' <flyrotary@lancaironline.net>
Message
But sticking with the 1308 cc for four chambers worth we have each chamber = 1308/4 = 327 cc/rotor face/chamber.  Ok so shoot me - I was 6 cc off.
 
 
Ed, I think Tracy was questioning the actual displacement of each chamber.   I'm going to try to find someone who's actually documented it, but I've always understood the displacement to be 80 ci for one rotation, 160 ci for two, and 240 ci for three.  If this is wrong, I've sure spread a lot of incorrect info about the rotary engine over the past 20 years or so.  I'm going to go out on a limb and say the real figure is exactly double your 327 cc number.
 
Rusty
 
PS- I just ordered my Shoptask, and couldn't resist the DRO option.  It happens to be the same one that Marvin pointed out. 
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