Return-Path: Sender: (Marvin Kaye) To: lml@lancaironline.net Date: Fri, 06 Aug 2004 12:31:26 -0400 Message-ID: X-Original-Return-Path: Received: from fed1rmmtao01.cox.net ([68.230.241.38] verified) by logan.com (CommuniGate Pro SMTP 4.2) with ESMTP id 354782 for lml@lancaironline.net; Fri, 06 Aug 2004 12:26:17 -0400 Received-SPF: none receiver=logan.com; client-ip=68.230.241.38; envelope-from=radialpower@cox.net Received: from [10.0.1.2] (really [68.228.79.153]) by fed1rmmtao01.cox.net (InterMail vM.6.01.03.02.01 201-2131-111-104-103-20040709) with ESMTP id <20040806162547.BFWZ6617.fed1rmmtao01.cox.net@[10.0.1.2]> for ; Fri, 6 Aug 2004 12:25:47 -0400 Mime-Version: 1.0 (Apple Message framework v613) In-Reply-To: References: Content-Type: text/plain; charset=US-ASCII; format=flowed X-Original-Message-Id: <42849D5C-E7C5-11D8-A8EF-0003936AFD3E@cox.net> Content-Transfer-Encoding: 7bit From: Barry Hancock Subject: Prop pitch with pressure loss X-Original-Date: Fri, 6 Aug 2004 09:25:41 -0700 X-Original-To: "Lancair Mailing List" X-Mailer: Apple Mail (2.613) On Aug 6, 2004, at 9:15 AM, Richard Kaplan wrote: > On the other hand, with low oil pressure it may not be > possible to adjust the prop and/or the prop may go > into the default high RPM/low pitch configuation with > a prop governor malfunction. I have often contemplated the wisdom of this configuration. I fly Russian warbird aircraft with M14P radials on them as well, and the failure mode is high pitch....seems to make a LOT more sense to me. Can someone enlighten me on why (from a philosophical standpoint) the engines that spin the other way (i.e. American) throw then prop to high drag upon pressure loss? Thanks in advance! Barry N122LL