Return-Path: Sender: (Marvin Kaye) To: lml Date: Thu, 28 Nov 2002 11:38:10 -0500 Message-ID: X-Original-Return-Path: Received: from mta2.wss.scd.yahoo.com ([66.218.85.33] verified) by logan.com (CommuniGate Pro SMTP 4.0.2) with ESMTP id 1890606 for lml@lancaironline.net; Thu, 28 Nov 2002 10:05:22 -0500 Received: from paul (206.71.105.242) by mta2.wss.scd.yahoo.com (6.5.032.1) id 3DE403B4000A1820 for lml@lancaironline.net; Thu, 28 Nov 2002 07:05:21 -0800 From: "Paul Nafziger" X-Original-To: "Lancair Mailing List" Subject: RE: [LML] Engine Cooling thought X-Original-Date: Thu, 28 Nov 2002 07:04:53 -0800 X-Original-Message-ID: MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0008_01C296AC.736511A0" X-Priority: 3 (Normal) X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook IMO, Build 9.0.2416 (9.0.2911.0) X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2600.0000 Importance: Normal In-Reply-To: This is a multi-part message in MIME format. ------=_NextPart_000_0008_01C296AC.736511A0 Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit I once owned a couple of Super Cubs that we used to tow gliders. They spent most of their life at either high power or idle. Those were the most solid engines I ever owned. They always made TBO. My personal experience says that shock cooling is vastly over-rated. Naf << Now, back to the subject line: I am reminded of the recent post on engine cooling on the LML stating something like "engines with lots of high power climbs and rapid power off descents have higher average TBO's than the average general aviation aircraft in use by owners" (or words to that effect). The aircraft/s used in this world record setting event certainly had significant rapid heating and cooling cycles. >> ------=_NextPart_000_0008_01C296AC.736511A0 Content-Type: text/html; charset="US-ASCII" Content-Transfer-Encoding: quoted-printable

I once owned a couple = of Super Cubs=20 that we used to tow gliders. They spent most of their life at = either high=20 power or idle. Those were the most solid engines I ever = owned. They=20 always made TBO. My personal experience says that shock = cooling is=20 vastly over-rated.

Naf

<< Now, back to the = subject=20 line: I am reminded of = the recent=20 post on engine cooling on the LML stating something like “engines = with lots of=20 high power climbs and rapid power off descents have higher average = TBO’s than=20 the average general aviation aircraft in use by owners” (or words = to that=20 effect). The aircraft/s = used in=20 this world record setting event certainly had significant rapid heating = and=20 cooling cycles. >>

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