Return-Path: Received: from relay03.roc.ny.frontiernet.net ([66.133.182.166] verified) by logan.com (CommuniGate Pro SMTP 4.3c2) with ESMTP id 760080 for flyrotary@lancaironline.net; Fri, 25 Feb 2005 22:36:35 -0500 Received-SPF: pass receiver=logan.com; client-ip=66.133.182.166; envelope-from=canarder@frontiernet.net Received: from filter02.roc.ny.frontiernet.net (filter02.roc.ny.frontiernet.net [66.133.183.69]) by relay03.roc.ny.frontiernet.net (Postfix) with ESMTP id 336963581D2 for ; Sat, 26 Feb 2005 03:35:51 +0000 (UTC) Received: from relay03.roc.ny.frontiernet.net ([66.133.182.166]) by filter02.roc.ny.frontiernet.net (filter02.roc.ny.frontiernet.net [66.133.183.69]) (amavisd-new, port 10024) with LMTP id 18771-02-24 for ; Sat, 26 Feb 2005 03:35:50 +0000 (UTC) Received: from [127.0.0.1] (67-137-89-39.dsl2.cok.tn.frontiernet.net [67.137.89.39]) by relay03.roc.ny.frontiernet.net (Postfix) with ESMTP id 806933581E2 for ; Sat, 26 Feb 2005 03:35:50 +0000 (UTC) Message-ID: <421FEE96.1050007@frontiernet.net> Date: Fri, 25 Feb 2005 21:35:50 -0600 From: Jim Sower User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.7) Gecko/20040514 X-Accept-Language: en-us, en MIME-Version: 1.0 To: Rotary motors in aircraft Subject: Re: [FlyRotary] Re: E-shaft permanent magnet alternator References: In-Reply-To: Content-Type: text/plain; charset=windows-1252; format=flowed Content-Transfer-Encoding: 8bit X-Antivirus: avast! (VPS 0508-3, 02/25/2005), Outbound message X-Antivirus-Status: Clean X-Virus-Scanned: by amavisd-new-20040701 (2.0) at filter02.roc.ny.frontiernet.net As you wish. I have a rule though: "... when Leon's talkin', Jim needs to be listenin' ...". By the time I'm ready, EWP will be more proven than they are now. I figure that what's designed to work in a race is a good candidate for aircraft use. What's designed to work in an automobile at 1000 - 2000 rpm needs some work to operate efficiently at 6000 rpm. I got to go with my man ... Jim S. Bulent Aliev wrote: > Jim, I have a business selling DC pumps and will not dare replace my > engine driven pump with an DC electric. NO WAY! > Todd is getting away with it in the frozen North, but I doubt it it > will make it here. I have by my desk a 15 GPM 12V pump with 1” ports. > This thing is bigger (about twice) and heavier than standard Lycoming > starter. If the weight was not an issue, this is the pump I would > consider as a minimum. Also I don’t like converting the engine’s > energy into electric and than converting again into kinetic? Sorry to > say on this issue I’m with PL. > Buly > > On 2/25/05 12:08 PM, "Jim Sower" wrote: > > IIRC EWP is a lot more *efficient* than EDWP (absorbs much less > power). Dual EWPs make the system a couple of orders of magnitude > more reliable than single EWP and arguably single EDWP. > > A bullet proof electrical system makes EWP *very* attractive to me > ... Jim S. > > >