Return-Path: Received: from mail.viclink.com ([66.129.220.6] verified) by logan.com (CommuniGate Pro SMTP 4.2b2) with ESMTP id 3183459 for flyrotary@lancaironline.net; Wed, 21 Apr 2004 20:59:53 -0400 Received: from mail.viclink.com (localhost [127.0.0.1]) by mail.viclink.com (8.11.7/8.11.7) with ESMTP id i3M0xgX94085 for ; Wed, 21 Apr 2004 17:59:52 -0700 (PDT) From: "Perry Mick" To: "Rotary motors in aircraft" Subject: Re: [FlyRotary] Re: Performance Props Date: Wed, 21 Apr 2004 16:59:42 -0800 Message-Id: <20040422004941.M74753@mail.viclink.com> In-Reply-To: References: X-Mailer: Open WebMail 1.90 20030226 X-OriginatingIP: 205.175.225.22 (pjmick) MIME-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 X-RAVMilter-Version: 8.4.3(snapshot 20030217) (mail.viclink.com) On Wed, 21 Apr 2004 20:19:12 -0400, Bulent Aliev wrote > On 4/21/04 12:44 AM, "Perry Mick" wrote: > > > Bulent: > > Are you looking for a wood prop or composite? Al's method is wood, mine is > > composite. I think with your HP you would need a prop similar to what I've > > built for Cosman, but it still needs to be tested. > > > Hi Perry, I want to build one like Al Wick and Phil Johnson did. > Wood / composite prop. This way I van get some initial performance > numbers for the final prop. I would like to have one like Cosmanšs, > but I can wait to be tested. In the mean time Išll have something > to start with. Bulent Tell me: your engine HP at X RPM sealevel redrive ratio cruise RPM, and desired cruise speed at that RPM number of blades, 2 or 3 (probably 3) prop diameter (limited by rotation angle on a pusher) I can work up some numbers for you to build to, blade pitch and chord. Perry