X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from [64.4.51.85] (HELO hotmail.com) by logan.com (CommuniGate Pro SMTP 4.3.4) with ESMTP id 1004624 for flyrotary@lancaironline.net; Thu, 16 Jun 2005 18:27:59 -0400 Received-SPF: pass receiver=logan.com; client-ip=64.4.51.85; envelope-from=lors01@msn.com Received: from mail pickup service by hotmail.com with Microsoft SMTPSVC; Thu, 16 Jun 2005 15:27:12 -0700 Message-ID: Received: from 64.4.51.220 by BAY107-DAV13.phx.gbl with DAV; Thu, 16 Jun 2005 22:27:11 +0000 X-Originating-IP: [64.4.51.220] X-Originating-Email: [lors01@msn.com] X-Sender: lors01@msn.com From: "Tracy Crook" To: "Rotary motors in aircraft" References: Subject: Re: [FlyRotary] re-drive question for Tracy Date: Thu, 16 Jun 2005 18:27:08 -0400 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0136_01C572A1.016BA4A0" X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: MSN 9 X-MimeOLE: Produced By MSN MimeOLE V9.10.0011.1703 Seal-Send-Time: Thu, 16 Jun 2005 18:27:08 -0400 X-OriginalArrivalTime: 16 Jun 2005 22:27:12.0066 (UTC) FILETIME=[8A5F7220:01C572C2] This is a multi-part message in MIME format. ------=_NextPart_000_0136_01C572A1.016BA4A0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable A separate system with ATF would work fine if you wanted to use a worse = lubricant, add complexity, failure modes, weight, space requirements, = and power consumption.=20 Tracy Tracy, Ian brough up a point that could also apply to the=20 re-drive. Since the planet ass'y was originally designed=20 for lubrication with ATF, is there any particular reason=20 why it couldn't be run as a closed system with a "scavage"=20 pump circulating ATF, instead of using engine oil? Dunno if there's any advantage to the ATF, for that matter,=20 but I thought I'd ask. Dale=20 (to whom the thought just occurred that this may have already=20 been discussed - some years ago - and could be in the=20 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 >=20 > 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. =20 >> Homepage: http://www.flyrotary.com/ >> Archive: = http://lancaironline.net/lists/flyrotary/List.html ------=_NextPart_000_0136_01C572A1.016BA4A0 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable
A separate system with ATF would work fine if you wanted to use a = worse=20 lubricant, add complexity, failure modes, weight, space requirements, = and power=20 consumption. 
 
Tracy
Tracy,

  =20 Ian brough up a point that could also apply to the
re-drive.  = Since=20 the planet ass'y was originally designed
for lubrication with ATF, = is=20 there any particular reason
why it couldn't be run as a closed = system with=20 a "scavage"
pump circulating ATF, instead of using engine=20 oil?

   Dunno if there's any advantage to the ATF, = for that=20 matter,
but I thought I'd ask.

Dale
(to whom the = thought just=20 occurred that this may have already
been discussed - some years = ago - and=20 could be in the
archives.)


> From: "Ian Dewhirst" = <ianddsl@magma.ca>
> = Date:=20 2005/06/16 Thu AM 10:52:04 EDT
> To: "Rotary motors in aircraft" = <flyrotary@lancaironline.net>
>=20 Subject: [FlyRotary] Re: turbo oil drain
>
> Hi Rusty, = there is=20 no rule that states that you have to use engine
> oil, since you = already=20 have a pump to scavenge and you really don't need
> much oil = pressure=20 for a turbo, add a small sump and a little cooler perhaps,
> and = your=20 worries of an engine oil leak are over.  The added advantage = is
>=20 that you can lubricate before start and cool after shutdown. =20



>>  Homepage:  http://www.flyrotary.com/
>&= gt; =20 Archive:   http://lancai= ronline.net/lists/flyrotary/List.html
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