X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Sender: To: lml Date: Fri, 15 Sep 2006 19:02:42 -0400 Message-ID: X-Original-Return-Path: Received: from [68.98.211.24] (HELO systems3.net) by logan.com (CommuniGate Pro SMTP 5.1c.4) with ESMTP id 1404491 for lml@lancaironline.net; Fri, 15 Sep 2006 10:40:43 -0400 Received-SPF: none receiver=logan.com; client-ip=68.98.211.24; envelope-from=cberland@systems3.net MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable Content-class: urn:content-classes:message X-MimeOLE: Produced By Microsoft Exchange V6.5 Subject: [LML] Re: Backfires LOP X-Original-Date: Fri, 15 Sep 2006 07:40:02 -0700 X-Original-Message-ID: <87C33F695961494D886EB3B6C8A47651166688@s3server.Systems3.local> X-MS-Has-Attach: X-MS-TNEF-Correlator: Thread-Topic: [LML] Re: Backfires LOP Thread-Index: AcbYhALic9daHrfaTEmQbkt06Z1vGgAT4y/w From: "Craig Berland" X-Original-To: "Lancair Mailing List" =20 On Sep 14, 2006, at 8:40 AM, Marvin Kaye wrote: Is it that he has encountered it more with lightweight props? Yes. =20 Walter....I can think of no correlation to the prop weight. Walter, something to ponder. If the pilot leans until "engine roughness is felt, then a composite prop equipped engine may be perceived to be smoother farther into the leaning process. The engine is then so lean it lean misfires and the expelled charge is ignited by the turbo heat. If the leaning is done to the same degrees lean of peak, then I also can not think of a correlation to the prop weight or material. Craig Berland