Perry Mick wrote:

  NACAs don't even work that well with aircooled engines.

Perry Mick
Duckt N7XR
http://www.ductedfan.com

How was your 1000 mile trip back from Copper State Perry?

Paul Lamar

-------- Original Message --------
Subject: COZY: NACA
Date: Sat, 12 Oct 2002 13:30:21 -0400
From: "Ron Larock" <rlarock@attbi.com>
Reply-To: "Ron Larock" <rlarock@attbi.com>
To: "Cozy Mailing List" <cozy_builders@canard.com>

Dear Canardians,

It seems everyone I talk to have some kind of problem with the NACA scoop.

I am researching downdraft cooling similar to George Shell's or arm pit
scoops.

Mike Melville went to arm pit scoops and hasn't had cooling problems since,
or at least that is what I have read. The downdraft cooling from what I
understand is easier to baffle and cools the way the engine was designed to
cool.

Arm pit or downdraft gets the cooling air away from the speed brake and
EGT's or CHT's shouldn't be affected by speed brake deployment.

The Berkut uses armpit scoops and cools a larger engine without problems. I
for one will not be using a NACA scoop. I still have alot of research before
I decide, but I will use armpit or downdraft cooling.

Ron Larock

 
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