X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from rwcrmhc14.comcast.net ([204.127.192.84] verified) by logan.com (CommuniGate Pro SMTP 5.0.8) with ESMTP id 1023809 for flyrotary@lancaironline.net; Sun, 05 Mar 2006 19:18:18 -0500 Received-SPF: none receiver=logan.com; client-ip=204.127.192.84; envelope-from=rlwhite@comcast.net Received: from Quail (c-68-35-160-229.hsd1.nm.comcast.net[68.35.160.229]) by comcast.net (rwcrmhc14) with SMTP id <20060306001733m14003gjjie>; Mon, 6 Mar 2006 00:17:33 +0000 Date: Sun, 5 Mar 2006 17:18:12 -0700 From: Bob White To: "Rotary motors in aircraft" Subject: Re: [FlyRotary] Turbo oil speculation Message-Id: <20060305171812.dea7606c.rlwhite@comcast.net> In-Reply-To: References: X-Mailer: Sylpheed version 2.2.2 (GTK+ 2.8.3; i686-pc-linux-gnu) Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Hi George, I was under the impression that the RD's need full oil pressure (60-80 psi). Does the Pegasus put out that kind of pressure? Also, how large is the reservoir you're using? I was thinking about using a separate oil system for my RD-1C, but finally decided I didn't need another device drawing current, besides the engine oil connection was simpler. :) Bob W. On Sun, 5 Mar 2006 15:30:35 -0800 (PST) George Graham wrote: > > Just a thought. I noticed that the oil coming out of my RD-1A gearbox is > foamed, from the meshing gears no doubt, and the oil in the engine may > also have some air entrained from the rotor gears. > > Perhaps it might be prudent to use a separate oil system for the turbocharger. > I have one on my gearbox, which consists of the Pegasus electric pump, > a reservoir and a filter. It seems to work very well and is not very heavy. > > I personally do not need a turbo, but if I did, I'd look at the quality of the oil > lube and cooling if my turbochargers kept failing prematurely. > > > George Graham > Mazda Rx7ez N4449E > Sarasota Florida -SRQ > > --------------------------------- > Yahoo! Mail > Bring photos to life! New PhotoMail makes sharing a breeze. -- http://www.bob-white.com N93BD - Rotary Powered BD-4 (first engine start 1/7/06) Custom Cables for your rotary installation - http://www.roblinphoto.com/shop/