Return-Path: Sender: (Marvin Kaye) To: lml Date: Tue, 28 May 2002 12:07:38 -0400 Message-ID: X-Original-Return-Path: Received: from imo-m03.mx.aol.com ([64.12.136.6] verified) by logan.com (CommuniGate Pro SMTP 4.0b1) with ESMTP id 1249491 for lml@lancaironline.net; Tue, 28 May 2002 11:51:12 -0400 Received: from Sky2high@aol.com by imo-m03.mx.aol.com (mail_out_v32.5.) id q.1a8.2e690c3 (3842) for ; Tue, 28 May 2002 11:51:01 -0400 (EDT) From: Sky2high@aol.com X-Original-Message-ID: <1a8.2e690c3.2a250165@aol.com> X-Original-Date: Tue, 28 May 2002 11:51:01 EDT Subject: Re: [LML] 320 ventilation system sucks and vacuum vs. electric X-Original-To: lml@lancaironline.net MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="part1_1a8.2e690c3.2a250165_boundary" X-Mailer: AOL 7.0 for Windows US sub 10509 --part1_1a8.2e690c3.2a250165_boundary Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit 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. --part1_1a8.2e690c3.2a250165_boundary Content-Type: text/html; charset="US-ASCII" Content-Transfer-Encoding: 7bit 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. --part1_1a8.2e690c3.2a250165_boundary--