Mailing List flyrotary@lancaironline.net Message #23990
From: Dale Rogers <dale.r@cox.net>
Subject: [FlyRotary] re-drive question for Tracy
Date: Thu, 16 Jun 2005 13:59:37 -0400
To: Rotary motors in aircraft <flyrotary@lancaironline.net>
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" <ianddsl@magma.ca>
Date: 2005/06/16 Thu AM 10:52:04 EDT
To: "Rotary motors in aircraft" <flyrotary@lancaironline.net>
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.  


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