Return-Path: Received: from rokland5.awh.us ([67.15.10.31] verified) by logan.com (CommuniGate Pro SMTP 4.3c2) with ESMTP-TLS id 753158 for flyrotary@lancaironline.net; Mon, 21 Feb 2005 14:55:49 -0500 Received-SPF: none receiver=logan.com; client-ip=67.15.10.31; envelope-from=bob@bob-white.com Received: from bgp01386375bgs.brodwy01.nm.comcast.net ([68.35.160.229]:33433 helo=quail) by rokland5.awh.us with smtp (Exim 4.43) id 1D3Jdz-0004bc-VY for flyrotary@lancaironline.net; Mon, 21 Feb 2005 13:55:00 -0600 Date: Mon, 21 Feb 2005 12:54:58 -0700 From: Bob White To: "Rotary motors in aircraft" Subject: Re: [FlyRotary] Re: 2nd battery Re: Amps required to run engine & amp- hours available Message-Id: <20050221125458.4d73219f.bob@bob-white.com> In-Reply-To: References: X-Mailer: Sylpheed version 1.9.3 (GTK+ 2.4.9; i686-pc-linux-gnu) Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit X-Antivirus-Scanner: Clean mail though you should still use an Antivirus X-AntiAbuse: This header was added to track abuse, please include it with any abuse report X-AntiAbuse: Primary Hostname - rokland5.awh.us 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: Hi Ernest, No pressure, I won't be ready to think about something like that till after I get the plane flying. It does sound like a good idea if the gears are sturdy enough to handle the load. Bill Schertz mentoned some concerns about that, and the consequences of breaking the gear driving the crank angle sensor. I think if I were to consider it, I would move the triggering to the ring gear. In fact, by doing that, the alternator could be put in where the CAS is now. I agree with Bill though. I would like more solid info on whether the gears are really robust enough to handle the load. Bob W. PS: If you are doing 4 things at once you're doing better than me. :) On Mon, 21 Feb 2005 14:04:18 -0500 Ernest Christley wrote: > Bob White wrote: > > >Wasn't someone talking about using the injector pump drive to drive a > >backup alternator? I will opt for the backup battery until I find a > >good solution for a second alternator. > > > >Bob White > > > > > > > > I was talking about it, Bob. But that's all it is so far. Just talk. > (Give me a break. I can't do but 5 things at one time. OK? 8*) > > The good new is that I've dropped 3.5lbs (+/- .25) from my PSRU housing, > and the stainless steel channel for my wing ribs should be here > tomorrow. I'll be getting around to that alternate alternator 'real > soon now'(TM). > -- http://www.bob-white.com N93BD - Rotary Powered BD-4 (real soon)