Mailing List flyrotary@lancaironline.net Message #43142
From: George Lendich <lendich@optusnet.com.au>
Subject: Re: [FlyRotary] Re: Muffler failed designs.
Date: Mon, 9 Jun 2008 19:52:22 +1000
To: Rotary motors in aircraft <flyrotary@lancaironline.net>
Michael,
Well it's a 2 piece (exhaust header) flange( front piece about 3/16" and backpiece about 3/16"), the inside part has a small tapered flange of the hole and the exhaust tube has a matching expanded end which fits over the small taper ( hard to explain, but obvious when seen) There is an outside ( exhaust header) flange which clamps everything together ( no welding) - excellent idea. The only problem is that the inside exhaust header flange may need to be stamped to get tapered flange around the hole symmetrical, maybe the outside one as well. I will see what the costs are.
Hope that helps!
George (down under)
Hi George:
 
As I have not been on PL's list for a while as I changed ISP and never re-uped my name, could you tell me about this new construction method.
 
Michael in Maine
 
 
----- Original Message -----
 
I haven't been in a hurry to finish it and it's been at the welders for some considerable time now, however I have taken that time to re-evaluate it. The recent Everett Hatch method put up by PL is a good idea to eliminate the problems associated by pipe to flange welding, but it may have some production issue and may have to be a stamped part.
George ( down under)


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