flyrotary@lancaironline.net Mailing List Archive

Charlie, I used strips of 1/8” rubber the same way Ed described.

I had to rotate your photo 90 degrees to see the whole picture … it looks like you’re trying to heat-shield your intake with a plate behind the cooler; I think you’ll be more disappointed with the cooler’s performance than you will the intake’s performance if you leave that shield in place. Tightly diffuse the inlet side – leave the outlet side open – my 2 cents worth.

Jeff

From:	Charlie England <ceengland7@gmail.com>
Subject:	oil cooler mount question
Date:	Sun, 26 May 2013 12:13:09 -0500
To:	Rotary motors in aircraft <flyrotary@lancaironline.net>

I've started design/fabrication/redesign of my oil cooler mount/diffuser. Just as I had a 'final' answer on the mount & was contemplating the diffuser, it occurred to me that I didn't have any shock mount provisions for the heat exchanger. For those who have been flying for a while, have any of you hard mounted the cooler to its support structure? As the photo shows, the primary mount is direct to the reduction drive plate. I would simply add the shock mounts, but if I use this particular cooler (a CX Racing 30 row unit like the one on Tracy's 20B), I won't have any room. I do have the option of buying a 25 row or using the 19 row I already have on hand, but I'd rather have a bit too much capacity & throttle the exit air than start with too little & have to rebuild everything.

Thanks,

Charlie

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