Tommy, my intake to exit area is approx 1.5 (not counting my louvers which
would probably increase it a bit. However, mine might be a bit on the larger
size and I probably lose some top speed to the increased drag.

My opinion (not data) is that if your cooling problem only occured on the
ground and not airborne then cooling fans MIGHT have merit.  However, at
flying airspeeds they might hinder airflow through the radiators more than
help, just hard to tell.

Ed Anderson

----- Original Message -----
From: "Tommy James" <twjames@healed.org>
To: "Rotary motors in aircraft" <flyrotary@lancaironline.net>
Sent: Sunday, August 03, 2003 10:52 AM
Subject: [FlyRotary] Cooling?


> Ed and all,
> What is the ratio of air-outlet area to air-inlet area on your plane?  I
> have read/heard it should be ~1.3x inlet area for ground and high power
> output situations.
> TJ<><
>
>
> >>  Homepage:  http://www.flyrotary.com/
> >>  Archive:   http://lancaironline.net/lists/flyrotary/List.html