The Murphy Builders Site

I'm currently building a 4 door cowl for my Rebel. I have the MC-3B nose
bowl, have completed the top and 2 sides the top doors are already in
template form.
I'm having trouble with the lower, due to where my exhaust is for mounting
the hinge.
The question: Is there a formula to figure out the size of the opening to
allow the right amount of air out.
The only thing I have found is on a Mustang II, he used the outlet was 75%
of the inlet.
Does this sound right????
The openings on the MC=3B total aprox 110 square inches. Thinking I'll have
to leave the bottom hanging down 4-5 inches. with 1-2 inches past the
firewall and a 20deg. lip down.
Previously I had the "speed "cowl. The ch. temp was ok 375-400 but the oil
temp was 220-240 in normal flight this is in 22-24 deg. weather, not sure
what it will be like in warmer weather or on long flights, the longest so
far is 2 hours.
Thanks for the help
Cecil 014r
----- Original Message -----
From: "Wayne G. O'Shea" <oifa@irishfield.on.ca>
To: <rebel-builders@dcsol.com>
Sent: Saturday, January 08, 2005 9:09 PM
Subject: Re: Murphy Builders meeting - Brampton

Warren..before you feel ignored...meetings are second Sunday of every

second

month. So next one would be in March!

Hey..my shop wasn't that cold...it was the hanger you couldn't take in

May!

100* temperature change (from Dubai) really sucks doesn't it!

Wayne

----- Original Message -----
From: "Warren & Marg Montgomery" <monty@emirates.net.ae>
To: <rebel-builders@dcsol.com>
Sent: Saturday, January 08, 2005 8:31 AM
Subject: Re: Murphy Builders meeting - Brampton

Anything planned for Sunday Feb 13th?
I plan on flying over to YYZ for the weekend and have the day to spare.
Leafs are out of the question and unless Wayne's got heat in his shop I
don't want another freeze like he gave me last May 2nd!!!
Warren
Dubai

Wayne G. O'Shea wrote:

weather

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