Return-Path: Sender: (Marvin Kaye) To: lml Date: Wed, 25 Sep 2002 19:53:32 -0400 Message-ID: X-Original-Return-Path: Received: from imo-m01.mx.aol.com ([64.12.136.4] verified) by logan.com (CommuniGate Pro SMTP 4.0b8) with ESMTP id 1791092 for lml@lancaironline.net; Wed, 25 Sep 2002 19:51:46 -0400 Received: from Sky2high@aol.com by imo-m01.mx.aol.com (mail_out_v34.10.) id q.129.18175bde (4410) for ; Wed, 25 Sep 2002 19:51:45 -0400 (EDT) From: Sky2high@aol.com X-Original-Message-ID: <129.18175bde.2ac3a611@aol.com> X-Original-Date: Wed, 25 Sep 2002 19:51:45 EDT Subject: Re: [LML] Re: V8 engines X-Original-To: lml@lancaironline.net MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="part1_129.18175bde.2ac3a611_boundary" X-Mailer: AOL 8.0 for Windows US sub 110 --part1_129.18175bde.2ac3a611_boundary Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit In a message dated 9/25/2002 4:37:06 PM Central Daylight Time, marv@lancaironline.net writes: > Water cooling an aircraft engine makes about as much sense as air cooling a > submarine. > Cute, but misses any point. Controlling the temperature RANGE of engine components, such as cylinders, allows for much tighter tolerances and, thus, more efficiency. An air cooled engine must have sloppy tolerances because of the tremendous expansion/contraction as a result of the great temp range in which it must operate. Grayhawk --part1_129.18175bde.2ac3a611_boundary Content-Type: text/html; charset="US-ASCII" Content-Transfer-Encoding: 7bit In a message dated 9/25/2002 4:37:06 PM Central Daylight Time, marv@lancaironline.net writes:

Water cooling an aircraft engine makes about as much sense as air cooling a
submarine.


Cute, but misses any point.  Controlling the temperature RANGE of engine components, such as cylinders, allows for much tighter tolerances and, thus, more efficiency.  An air cooled engine must have sloppy tolerances because of the tremendous expansion/contraction as a result of the great temp range in which it must operate. 

Grayhawk --part1_129.18175bde.2ac3a611_boundary--