Mailing List flyrotary@lancaironline.net Message #5881
From: Russell Duffy <13brv3@bellsouth.net>
Subject: RE: [FlyRotary] Re: muffler?
Date: Mon, 16 Feb 2004 09:02:59 -0600
To: 'Rotary motors in aircraft' <flyrotary@lancaironline.net>
Message

Two suggestions, you might try search on the web for exhaust pipe "reducers", "collector cones", etc.  Also you might see if your local muffler shop might have such a fitting or could use their hydraulic machinery to make you one..

Hi Ed,
 
Burns Stainless has a fitting that will work, but it isn't really ideal either.  I could probably get a muffler shop to expand the end of my pipe, but the heavy, mild steel flange bothered me too.  I went ahead and ordered some 1/4" 321 to make a new flange, but this isn't a perfect solution either.  Now, I'll have a 2.125" port on the rotor housing going into a 1.68" ID tube.  Since the port on the housing tapers out to that size, I don't think it will be a huge problem, but I may look into extending the exhaust tube slightly through the flange, and shaping the end so that it closely fits the walls of the ports.  Until I look at it more closely, I won't know just how worthwhile this would be.
 
Cheers,
Rusty (now I want to spin something)  


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