Return-Path: Received: from pop3.olsusa.com ([63.150.212.2] verified) by logan.com (CommuniGate Pro SMTP 3.4.5) with ESMTP id 772379 for rob@logan.com; Wed, 02 May 2001 09:22:33 -0400 Received: from wind.imbris.com ([216.18.130.7]) by pop3.olsusa.com (Post.Office MTA v3.5.3 release 223 ID# 0-71175U5500L550S0V35) with ESMTP id com for ; Wed, 2 May 2001 09:15:42 -0400 Received: from regandesigns.com (cda131-31.imbris.com [216.18.131.31]) by wind.imbris.com (8.11.2/8.9.3) with ESMTP id f42DMH978497 for ; Wed, 2 May 2001 06:22:17 -0700 (PDT) Message-ID: <3AEFEDE7.43A5F377@regandesigns.com> Date: Wed, 02 May 2001 06:22:15 -0500 From: Brent Regan MIME-Version: 1.0 To: Lancair List Subject: LOP/ROP debate Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit X-Mailing-List: lancair.list@olsusa.com Reply-To: lancair.list@olsusa.com <<<<<<<<<<<<<<<<--->>>>>>>>>>>>>>>> << Lancair Builders' Mail List >> <<<<<<<<<<<<<<<<--->>>>>>>>>>>>>>>> >> Thank you George, for the informed treatise. I have two questions. 1) How does 150 degrees ROP compare in your ROP/LOP performance comparison. 2) In your opinion, what are the metallurgical consequences of transitioning from ROP (Climb) to LOP THROUGH peak at high power settings (>75%). In particular I am interested in the exhaust valve and turbine impeller as they have low thermal time constants. Regards Brent Regan >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> LML website: http://www.olsusa.com/Users/Mkaye/maillist.html LML Builders' Bookstore: http://www.buildersbooks.com/lancair Please send your photos and drawings to marvkaye@olsusa.com. >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>