Subject: Lancair Cowl
From: Rotary Engine
Date: 9/20/2009, 7:48 PM
To: AAA Put this in the To box

Hey Paul, any news on the cowl ? Hadn't heard anything for a little while.

Jarrett


I went traveling and forgot about.
What model of Lancair? Do we have a firewall dwg and length?
Thrust line position?

Paul Lamar


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Paul,
I didn't make it to the airport last weekend due to the weather and also
working on the p-port engine.  But I plan on going to the airport on Friday
and will get measurements then.  I was able to obtain a firewall drawing.
While it doesn't have any measurements, it does provide the general
curvature.

I'm flying up to Dallas on Friday in conjunction with PNP5000, but will
measure the firewall when I return.

Thanks,
Mark


Paul,
I was out at the airport today and got the firewall measurements you asked
for.  I added station 19 because this is where the outer edge of the tunnel
is located (Your drawing shows this as station 18.)

Referring to your drawing, the dims are as follows:
   0 - 1/4"
   3 - 0"
   6 - 1/4"
   9 - .7"
 12 - 1.4"
 15 - 2.55"
 18 - 4.8"
 19 - 5.8"

A 5" radius would be about right for the tunnels.

The measurement on the front motor mounts is the outside-to-outside
dimension and is 20 1/8", best I can measure.

Thanks,
Mark

Great Mark. I'll get on it.

Paul Lamar
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The Rotary Engine NewsLetter. Powered by Linux.
ACRE NL web site. http://www.rotaryeng.net
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Copyright 1998-2009 All world wide rights reserved.