Mailing List flyrotary@lancaironline.net Message #60016
From: Stephen Izett <steveizett@me.com>
Subject: coolers mounted directly to rotary
Date: Fri, 26 Jul 2013 07:36:44 +0800
To: Rotary motors in aircraft <flyrotary@lancaironline.net>
Hi guys

Would really appreciate your thoughts here.
We made a decision way back to mount the oil cooler hard to the redrive being fed from the left cheek.
This was made on the basis of a belief that the rotary runs very smooth.
We recently built up the diffuser for it, trying to allow for some movement but I have significant concerns.

If we are going to shift it, now is the time!

I remember Mark S commenting on having mounted to the redrive (with some form of rubber isolation) then redesigned of the engine.

Key concerns are:
1. Vibration breaking one of the many joints in the cooler and subsequent high pressure oil flow and possible fire.
2. Seal between diffuser and core.

Thanks

Steve Izett
Glasair SIIRG with Renesis
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