Mailing List flyrotary@lancaironline.net Message #52973
From: <Lehanover@aol.com>
Subject: Re: [FlyRotary] Tangential Muffler
Date: Sat, 20 Nov 2010 07:37:51 EST
To: <flyrotary@lancaironline.net>
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In a message dated 11/20/2010 6:33:32 A.M. Eastern Standard Time, msteitle@gmail.com writes:
The positive news is that I picked up 10-12 mph on top speed!  So, it confirms my suspicions that the tangential muffler is too restrictive for my engine.  While definitely not optimal, the 3-into-1 design is clearly better than the tangential muffler when it comes to making power.    

So, my plan is to build another exhaust from 625 inconel, making all three runners 31.5".  I haven't decided what I will use for a muffler.  I'll report back when I have more data.  

Mark
Equally spaced pulses from identical length tubes joined at the same angles, while still loud will sound less irritating, and might be easier to muffle.  Uneven lengths and angles sound like fingernails on a black board.
 
Lynn E. Hanover
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