Mailing List lml@lancaironline.net Message #13579
From: <Sky2high@aol.com>
Sender: Marvin Kaye <marv@lancaironline.net>
Subject: Re: [LML] 320 ventilation system sucks and vacuum vs. electric
Date: Tue, 28 May 2002 12:07:38 -0400
To: <lml>
In a message dated 5/28/2002 10:27:29 AM Central Daylight Time, cbaker9@nyc.rr.com writes:


Two notes- the vents produce a little bit of air noise at high speeds, ..........


Clark,

A "little bit of noise"?  I must admit that, after the thin-walled canopy, the air vents are the next most loudest source of noise - even with a Bose headset  (third is the occasional scream from the pilot).  I do believe that it is not the rush of air, but prop/engine noise.  On my next aeroplane, I would seriously consider a more aft source of ventilation air.

Scott Krueger
N92EX

PS:  When you go all electric, use the output from the vacuum pump to cool your brow!

PPS: Hmmmm.  If you are using a vacuum pump, is your cockpit at a lower pressure because of all the air being sucked out?  Or, does the presence of two Lancair pilots in the cockpit compensate by the excess hot air being expelled.
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