X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from fmailhost05.isp.att.net ([204.127.217.105] verified) by logan.com (CommuniGate Pro SMTP 5.4.3) with ESMTP id 5322362 for flyrotary@lancaironline.net; Wed, 21 Dec 2011 15:09:00 -0500 Received-SPF: none receiver=logan.com; client-ip=204.127.217.105; envelope-from=bbradburry@bellsouth.net Received: from desktop (adsl-98-85-146-162.mco.bellsouth.net[98.85.146.162]) by isp.att.net (frfwmhc05) with SMTP id <20111221200824H05005u4iee>; Wed, 21 Dec 2011 20:08:24 +0000 X-Originating-IP: [98.85.146.162] From: "Bill Bradburry" To: "'Rotary motors in aircraft'" References: In-Reply-To: Subject: RE: [FlyRotary] Re: off topic, propeller carving and paint Date: Wed, 21 Dec 2011 15:08:24 -0500 Message-ID: <44DABBE8013E4F85AFE027B1BC2C6F62@Desktop> MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit X-Mailer: Microsoft Office Outlook 11 Thread-Index: AczAFrhBKOI/DRV5Q1uzQVj+s1QVnAABOgMw X-MimeOLE: Produced By Microsoft MimeOLE V6.0.6001.18049 That is true, but if I was going to go with something else, I would try to find something that will turn my prop close to the 2700 that most props are designed for. That means that I would look for something in the 2.2-2.4 ratio range, not 3.17. That ratio will mean your prop will never get more than 2000 rpm with the rotary. Bill B -----Original Message----- From: Rotary motors in aircraft [mailto:flyrotary@lancaironline.net] On Behalf Of Ernest Christley Sent: Wednesday, December 21, 2011 2:26 PM To: Rotary motors in aircraft Subject: [FlyRotary] Re: off topic, propeller carving and paint Bill Bradburry wrote: > Tracy's PSRU ratio is either 2.17 turning backwards (A,B) or 2.85 > turning forward (C) I think?? > > And it is a good product; but, it's not the only PSRU in the world. -- Homepage: http://www.flyrotary.com/ Archive and UnSub: http://mail.lancaironline.net:81/lists/flyrotary/List.html