Great stuff George.
I appreciate the input.

I'm installing retracts on my airplane which frees up the space behind the rear passenger seat (Long-EZ). Depending on what I come up with for a radiator, I may be able to tuck it into this space (between the back seat and the firewall) and further reduce the profile of the scoop to maintain a more streamline shape.

Now that I have it in CAD, I can slide it around and figure out the best way to fit it into my CAD rendering of the fuselage.

-----Original Message-----
From: Rotary motors in aircraft [mailto:flyrotary@lancaironline.net] On Behalf Of George Lendich
Sent: Thursday, January 14, 2010 3:40 PM
To: Rotary motors in aircraft
Subject: [FlyRotary] Re: Scoops

Thomas,
Nice research.
I found my notes on inclined radiators, they state
1. 0-20/30* will decrease cooling and increase drag.
2. Over 30* things improve.
3. At approx 55* cooling effectiveness is 30% greater than non-inclined rads
and drag is less by 20%.

If this was followed the height of the duct would be reduced significantly.
Put that in your drawing and see what it looks like.
George ( down under)