X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Sender: To: lml@lancaironline.net Date: Tue, 14 Aug 2007 16:35:56 -0400 Message-ID: X-Original-Return-Path: Received: from imo-d03.mx.aol.com ([205.188.157.35] verified) by logan.com (CommuniGate Pro SMTP 5.1.11) with ESMTP id 2261612 for lml@lancaironline.net; Tue, 14 Aug 2007 08:11:59 -0400 Received-SPF: pass receiver=logan.com; client-ip=205.188.157.35; envelope-from=MikeEasley@aol.com Received: from MikeEasley@aol.com by imo-d03.mx.aol.com (mail_out_v38_r9.2.) id q.cbb.161002eb (30738) for ; Tue, 14 Aug 2007 08:11:11 -0400 (EDT) From: MikeEasley@aol.com X-Original-Message-ID: X-Original-Date: Tue, 14 Aug 2007 08:11:11 EDT Subject: Re: [LML] Cirrus Aircraft, the Farmer's Daughter, and a BRS X-Original-To: lml@lancaironline.net MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="-----------------------------1187093471" X-Mailer: 9.0 Security Edition for Windows sub 5373 X-Spam-Flag: NO -------------------------------1187093471 Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit You raised my curiosity! BRS's web site quotes 15-28 FPS (900-1680 FPM) as the descent rate at rated weight of the canopy at 5,000 feet density altitude. They also say that at 21 FPS the impact is equivalent to jumping from a 7 foot height and that the landing gear and the seat will absorb most of the impact. I'm sure the new 26G seats are a factor in the survivability of a ~1,500 FPM THUD! Mike Easley PS It also appears that in certified installations, the canopies are rated at the aircraft's VNE. ************************************** Get a sneak peek of the all-new AOL at http://discover.aol.com/memed/aolcom30tour -------------------------------1187093471 Content-Type: text/html; charset="US-ASCII" Content-Transfer-Encoding: quoted-printable
You raised my curiosity!
 
BRS's web site quotes 15-28 FPS (900-1680 FPM) as the descent rate at r= ated=20 weight of the canopy at 5,000 feet density altitude.  They also say tha= t at=20 21 FPS the impact is equivalent to jumping from a 7 foot height and that the= =20 landing gear and the seat will absorb most of the impact.  I'm sure the= new=20 26G seats are a factor in the survivability of a ~1,500 FPM THUD!
 
Mike Easley
 
PS  It also appears that in certified installations, the canopies=20= are=20 rated at the aircraft's VNE.



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