Return-Path: Received: from pop3.olsusa.com ([63.150.212.2] verified) by logan.com (CommuniGate Pro SMTP 3.4.5) with ESMTP id 771641 for rob@logan.com; Mon, 30 Apr 2001 21:31:59 -0400 Received: from smtp.ca.com.au ([203.14.111.7]) by pop3.olsusa.com (Post.Office MTA v3.5.3 release 223 ID# 0-71175U5500L550S0V35) with ESMTP id com for ; Mon, 30 Apr 2001 21:20:10 -0400 Received: from ca.com.au (ppp-perth-153.ca.com.au [203.31.121.153]) by smtp.ca.com.au (8.11.0/8.11.0) with ESMTP id f411QfF25185 for ; Tue, 1 May 2001 09:26:41 +0800 Message-ID: <3AED67E1.97659C76@ca.com.au> Date: Mon, 30 Apr 2001 21:25:54 +0800 From: belvoir Reply-To: belvoir@ca.com.au Reply-To: lancair.list@olsusa.com MIME-Version: 1.0 To: "lancair.list@olsusa.com" Subject: Walter Lancair VI P Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit X-Mailing-List: lancair.list@olsusa.com <<<<<<<<<<<<<<<<--->>>>>>>>>>>>>>>> << Lancair Builders' Mail List >> <<<<<<<<<<<<<<<<--->>>>>>>>>>>>>>>> >> Great news! I have just finished testing the new low drag exhaust on the Walter powered Lancair IV P. The cowls have been modified to close up the gap left from the Let 410 exhaust hole and were only in undercoat at the time of testing. On the ground the engine is a little noisier. Sounds more like a PT6 now. I no longer have a soot problem on the sides of the airframe and very little exhaust smell can now be detected on the ground. In the air the airframe is noticeably smoother, there being less airframe rumble. Engine performance appears to have remained unchanged. There are no perceptible changes to exhaust temps versus compressor RPM. At 14,000 ft I have gained 15 knots of IAS and at 25,000 ft gained 10 knots of IAS. The exhaust looks great as well. I will post a photo in a couple of days once the cowls are repainted. Our next endeavor will be to do some flight tests of different wing tip designs. Regards, Frank Fry >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> 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. >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>