Return-Path: Sender: (Marvin Kaye) To: flyrotary, -----------------------------300541136710311-- Date: Mon, 06 Jan 2003 22:02:12 -0500 Message-ID: X-Original-Return-Path: Received: from [205.152.58.141] (HELO imf01bis.bellsouth.net) by logan.com (CommuniGate Pro SMTP 4.0.3) with ESMTP id 1945559 for flyrotary@lancaironline.net; Sun, 05 Jan 2003 14:04:24 -0500 Received: from johns ([216.76.210.77]) by imf01bis.bellsouth.net (InterMail vM.5.01.04.19 201-253-122-122-119-20020516) with SMTP id <20030105190617.SHGS1202.imf01bis.bellsouth.net@johns> for ; Sun, 5 Jan 2003 14:06:17 -0500 From: "John Slade" X-Original-To: "Rotary motors in aircraft" Subject: RE: [FlyRotary] Re: props X-Original-Date: Sun, 5 Jan 2003 14:04:10 -0500 X-Original-Message-ID: MIME-Version: 1.0 Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit X-Priority: 3 (Normal) X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook IMO, Build 9.0.2416 (9.0.2910.0) Importance: Normal In-Reply-To: X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2600.0000 > They did warn me that their prop will always be a bit slower on top speed > than a properly made 2-blade wood prop. He said it should be > within 10 mph though. Small price to pay for an adjustable prop. I'd be very interested to see the results of this experiment. My reasoning was that, based on greg Richter's experience with a turbo 13B, I'll get of the ground pretty quickly even with a rowing boat paddle. Climb rate wont be too shabby either. If top speed is better with a wood prop, then what are you looking to improve? Efficiency at cruise? John Slade