Return-Path: Received: from ms-smtp-03.texas.rr.com ([24.93.36.231] verified) by logan.com (CommuniGate Pro SMTP 4.1b9) with ESMTP id 2477005 for flyrotary@lancaironline.net; Wed, 16 Jul 2003 13:22:25 -0400 Received: from dell (cs6669241-190.austin.rr.com [66.69.241.190]) by ms-smtp-03.texas.rr.com (8.12.5/8.12.2) with SMTP id h6GHMM0r025493 for ; Wed, 16 Jul 2003 12:22:24 -0500 (CDT) Message-ID: <001001c34bbe$d17ceac0$6501a8c0@austin.rr.com> From: "Bob Darrah" To: "Rotary motors in aircraft" References: Subject: Re: [FlyRotary] Re: Engine Failure Report from Chuck Dunlap Date: Wed, 16 Jul 2003 12:22:22 -0500 MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2800.1106 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 Not that my opinion counts, Caleb, but I look at it like this: the ratio of airflow through the engine will not change significantly, the dead rotor is still pumping air. The greater the serious damage to the rotor, the less efficient the pump becomes. RPM drops off, supercharger slows down. How much boost can you get at 3900 rpm? If it is a positive displacement pump, you should still get some. How much can you use at that reduced RPM? And you still have the supercharger drag. My 2 cents is on the side that says drag is greater than power gain. Bob Darrah > > What do you guys think? > > Caleb Ramsby > > __________________________________ > Do you Yahoo!? > SBC Yahoo! DSL - Now only $29.95 per month! > http://sbc.yahoo.com > > >> Homepage: http://www.flyrotary.com/ > >> Archive: http://lancaironline.net/lists/flyrotary/List.html