Sender: <marv@lancaironline.net> (Marvin Kaye)
To: lml
Date: Mon, 27 May 2002 23:00:44 -0400
Message-ID: <redirect-1248979@logan.com>
From: Sky2high@aol.com
Subject: Re: [LML] 320 ventilation system sucks
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Bill,

I need to see a close up and a further out picture for orientation.  

I also have Standard NACA ducts, although I slightly altered the outline to 
meet specs and squared up the ramp to sidewall and sidewall to fuselage 
joints.  I have 1/8 inch mesh hardware cloth at the plenum entry to keep out 
wasps, eyeballs on the plenum itself to cool my feet, eyeballs on the panel 
for face air (fed by 1 in tube), and the passenger plenum also has a 1/2 inch 
tube tapped in for radio stack cooling air.  I get air coming in weakly with 
just the prop running and plenty during low speed flight right up to the AOA 
warning - Angle, angle push!

I can't imagine one could get air sucked out unless the cockpit is 
pressurized or there is no way for incoming air ro exit (my friend's E-Racer 
pusher had this problem).  Generally, air should be able to get behind the 
panel, down the elevator tunnel and out the elevator opening in the vertical 
stabilizer

Good Luck!

Scott Krueger