Mailing List flyrotary@lancaironline.net Message #34577
From: Mark R Steitle <mark.steitle@austin.utexas.edu>
Subject: RE: [FlyRotary] Re: EAA 782 meeting
Date: Wed, 29 Nov 2006 11:42:41 -0600
To: Rotary motors in aircraft <flyrotary@lancaironline.net>
Sounds like a chip detector would be a good idea.  It should provide
some advanced warning of an impending failure, assuming the gears are
shedding metal.  

I believe it was Tom Parkes' turbo 20B w/Ross gearbox that he was
running when his chip detector alerted him to metal chips in the gearbox
oil, possibly averting an off-field landing, or worse.  Is anyone else
using a chip detector?

Mark S.


   You have to also consider the high mileage on the auto
transmissions and the heavy loads they had been hauling with a big
diesel engine behind them but still its a comparison that says the
Dodge is stronger, the two problems that show up in the C-6 in the
trucks are sun gear teeth chipping and planet bearing failure which
may be worst in our application do to the higher rpm however in the
case of 2.17 gearbox where the planet carrier is held still it would
get better oiling than in the 2.85 units.
  Ken

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