Mailing List flyrotary@lancaironline.net Message #16531
From: Paul <sqpilot@bellsouth.net>
Subject: Re: [FlyRotary] Re: Cosmo
Date: Wed, 2 Feb 2005 20:45:45 -0600
To: Rotary motors in aircraft <flyrotary@lancaironline.net>
Re: [FlyRotary] Cosmo
 
----- Original Message -----
From: Al Gietzen
Sent: Wednesday, February 02, 2005 1:01 AM
Subject: [FlyRotary] Re: Cosmo

New question....any idea of how much HP might be expected from a NA 1995 Cosmo stock engine?  I understand the Cosmo had the largest stock porting.  Bulent....don't you have one of these engines?   Thanks in advance for all replies/input.  Paul Conner


The same size as the 20B. I have no Idea what it will do as NA?

It should be pretty close to 2/3 of my 20B; so about 147 at 5200, 173 hp at 6000; both WOT - sealevel.  If you use 9.7 rotors, maybe those go up to 152 and 176. Your results may vary some based on induction and exhaust configuration.

 

Al

Thanks, Al.  Sounds like I should just stick with the ported 4-port engine I am assembling.  Paul Conner


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