Return-Path: Received: from pop3.olsusa.com ([63.150.212.2] verified) by logan.com (CommuniGate Pro SMTP 3.5.2) with ESMTP id 1029846 for rob@logan.com; Wed, 23 Jan 2002 20:54:24 -0500 Received: from smtp.tscnet.net ([66.152.64.20]) by pop3.olsusa.com (Post.Office MTA v3.5.3 release 223 ID# 0-71866U8000L800S0V35) with ESMTP id com for ; Wed, 23 Jan 2002 10:20:27 -0500 Received: from mail.tscnet.net (mail.tscnet.net [66.152.64.7]) by smtp.tscnet.net (8.11.6/8.11.6) with SMTP id g0NFXQY04981 for ; Wed, 23 Jan 2002 07:33:26 -0800 Received: (qmail 23195 invoked from network); 23 Jan 2002 15:22:09 -0000 Received: from pou-1-10-24.tscnet.net (HELO c656256a) (66.152.73.24) by mail.tscnet.net with SMTP; 23 Jan 2002 15:22:09 -0000 Message-ID: <001101c1a419$d1177e40$18499842@mshome.net> From: "Robert Smiley" To: References: <5.1.0.14.0.20020122215456.00aa59c8@pop-server.sc.rr.com> Subject: Re: Constant speed prop Date: Wed, 23 Jan 2002 07:25:32 -0700 MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit X-Mailing-List: lancair.list@olsusa.com Reply-To: lancair.list@olsusa.com <<<<<<<<<<<<<<<<--->>>>>>>>>>>>>>>> << Lancair Builders' Mail List >> <<<<<<<<<<<<<<<<--->>>>>>>>>>>>>>>> >> Answer, More thrust or power on takeoff and climb. Probable higher speed in cruise, probable decreased fuel consumption due to efficiency. The propeller will operate at optimum efficiency in either circumstance as the engine is operating at a constant power setting and constant RPM changing pitch as required. A fixed pitch prop cannot be efficient in all areas. If you go for optimum speed, you lose acceleration and power for takeoff. ie racing propellers. If you go for thrust and performance for climb and takeoff you sacrifice speed. These birds do best with a constant speed prop. We need the thrust, power with lower pitch prop setting,to get of the ground with our small wing area, high wing loading and a higher pitch setting to take advantage of the clean aerodynamic configeration of these wonderful birds and get our top speed which just happens to be our bragging rights we all tout. Bob Smiley N94RJ >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> LML website: http://members.olsusa.com/mkaye/maillist.html LML Builders' Bookstore: http://www.buildersbooks.com/lancair Please remember that purchases from the Builders' Bookstore assist with the management of the LML. Please send your photos and drawings to marvkaye@olsusa.com. >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>