X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Sender: To: lml@lancaironline.net Date: Wed, 03 Aug 2005 10:59:49 -0400 Message-ID: X-Original-Return-Path: Received: from HQEMGATE03.nvidia.com ([216.228.112.143] verified) by logan.com (CommuniGate Pro SMTP 4.3.6) with ESMTP id 622436 for lml@lancaironline.net; Tue, 02 Aug 2005 12:21:20 -0400 Received-SPF: none receiver=logan.com; client-ip=216.228.112.143; envelope-from=colyncase@earthlink.net Received: from hqemfe02.nvidia.com (Not Verified[172.16.227.92]) by HQEMGATE03.nvidia.com id ; Tue, 02 Aug 2005 09:20:22 -0700 Received: from ccaselt ([172.16.228.84]) by hqemfe02.nvidia.com with Microsoft SMTPSVC(6.0.3790.1830); Tue, 2 Aug 2005 09:20:22 -0700 X-Original-Message-ID: <01dc01c5977e$15244860$d39279a5@nvidia.com> From: "colyncase on earthlink" X-Original-To: "Lancair Mailing List" References: Subject: Re: [LML] Re: Turbine revolution X-Original-Date: Tue, 2 Aug 2005 09:20:21 -0700 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_01D9_01C59743.67D40B80" X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2900.2180 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.2180 X-Original-Return-Path: colyncase@earthlink.net X-OriginalArrivalTime: 02 Aug 2005 16:20:23.0152 (UTC) FILETIME=[1573EF00:01C5977E] This is a multi-part message in MIME format. ------=_NextPart_000_01D9_01C59743.67D40B80 Content-Type: text/plain; charset="Windows-1252" Content-Transfer-Encoding: quoted-printable Mark said, Turbines come into their own in thin air. I don't think there's really any magic here. If you had a 900hp piston = and you actually used all 900hp at sea level your fuel consumption would = be huge. They only "come into their own" because they run at a small = fraction of max power at cruise. On BSFC, if you had a piston with 4.5 compression ratio, the BSFC would = be horrible too. I'm glad INNODYNE showed up but 4.5:1 compression ratio IMO just isn't = interesting. Let's hope they stay solvent enough to go to the next = level. Colyn ------=_NextPart_000_01D9_01C59743.67D40B80 Content-Type: text/html; charset="Windows-1252" Content-Transfer-Encoding: quoted-printable
Mark said, Turbines come into their = own in thin=20 air.
 
I don't think there's really any magic = here. =20 If you had a 900hp piston and you actually used all 900hp at sea level = your fuel=20 consumption would be huge.  They only "come into their own"=20 because they run at a small fraction of max power at = cruise.
 
On BSFC, if you had a piston with = 4.5=20 compression ratio, the BSFC would be horrible too.
 
I'm glad INNODYNE showed up but 4.5:1 = compression=20 ratio IMO just isn't interesting.   Let's hope they stay = solvent=20 enough to go to the next level.
 
Colyn
 
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