Ben,

The center tube should be smaller. Did you fit the tubes through the
flange and weld from the back side or just weld them to the front of the
flange? Any pics would be helpful. Thanks Bobby -----Original Message-----
From: Rotary motors in aircraft [mailto:flyrotary@lancaironline.net] On
Behalf Of Ben Schneider
Sent: Friday, July 24, 2009 8:27 PM
To: Rotary motors in aircraft
Subject: [BULK] [FlyRotary] Re: Renesis exhaust tubing size...
Importance: Low


Bobby,

  I believe it was 2" tubing .065" wall. I opted for thicker wall
tubing to reduce chances of having it fail. In retrospect, I would
likely set down on wall thickness size, since I Jet Hot coated it. All
the tubing came from Burns stainless. I had to buy the bends in "U"
bends, as 90's were not available in that thickness, and dimension.
  The tubing was bent to shape (to fit the square openings on the
flange) with a vise, and a blunt piece of steel to help shape the
corners. That part of the exhaust build went surprisingly fast. I think
I only spent a couple of hours doing that.
  I will post some pictures of the exhaust tomorrow, I have to dig out
the CD they are on, and transfer them to this computer, etc...
  Is there any particular part you want to see, or just the flange
connections.

  Ben

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