X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from server3.alwayswebhosting.com ([66.98.204.64] verified) by logan.com (CommuniGate Pro SMTP 4.3.4) with ESMTPS id 1004242 for flyrotary@lancaironline.net; Thu, 16 Jun 2005 14:07:17 -0400 Received-SPF: none receiver=logan.com; client-ip=66.98.204.64; envelope-from=bob@bob-white.com Received: from bgp01386375bgs.brodwy01.nm.comcast.net ([68.35.160.229]:34173 helo=quail) by server3.alwayswebhosting.com with smtp (Exim 4.50) id 1Diykx-0001zz-Pz for flyrotary@lancaironline.net; Thu, 16 Jun 2005 13:06:24 -0500 Date: Thu, 16 Jun 2005 12:06:20 -0600 From: Bob White To: "Rotary motors in aircraft" Subject: Re: [FlyRotary] re-drive question for Tracy Message-Id: <20050616120620.08b64244.bob@bob-white.com> In-Reply-To: References: X-Mailer: Sylpheed version 2.0.0beta1 (GTK+ 2.4.9; i686-pc-linux-gnu) Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit X-AntiAbuse: This header was added to track abuse, please include it with any abuse report X-AntiAbuse: Primary Hostname - server3.alwayswebhosting.com X-AntiAbuse: Original Domain - lancaironline.net X-AntiAbuse: Originator/Caller UID/GID - [47 12] / [47 12] X-AntiAbuse: Sender Address Domain - bob-white.com X-Source: X-Source-Args: X-Source-Dir: I asked Tracy that question a while back. The answer, as I recall it, was that engine oil is better for lubrication. The ATF is needed because of other considerations in the automatic transmission. A separate closed system is OK, but use engine oil, and you need a high pressure pump. Buly, do you have a pump that would be suitable for that application? Bob W. On Thu, 16 Jun 2005 13:59:37 -0400 Dale Rogers wrote: > Tracy, > > Ian brough up a point that could also apply to the > re-drive. Since the planet ass'y was originally designed > for lubrication with ATF, is there any particular reason > why it couldn't be run as a closed system with a "scavage" > pump circulating ATF, instead of using engine oil? > > Dunno if there's any advantage to the ATF, for that matter, > but I thought I'd ask. > > Dale > (to whom the thought just occurred that this may have already > been discussed - some years ago - and could be in the > archives.) > > > > From: "Ian Dewhirst" > > Date: 2005/06/16 Thu AM 10:52:04 EDT > > To: "Rotary motors in aircraft" > > Subject: [FlyRotary] Re: turbo oil drain > > > > Hi Rusty, there is no rule that states that you have to use engine > > oil, since you already have a pump to scavenge and you really don't need > > much oil pressure for a turbo, add a small sump and a little cooler perhaps, > > and your worries of an engine oil leak are over. The added advantage is > > that you can lubricate before start and cool after shutdown. > > > > >> Homepage: http://www.flyrotary.com/ > >> Archive: http://lancaironline.net/lists/flyrotary/List.html > > -- http://www.bob-white.com N93BD - Rotary Powered BD-4 (real soon) Prewired EC2 Cables - http://www.roblin-photo.com/cable/