Mailing List flyrotary@lancaironline.net Message #44998
From: Mark Steitle <msteitle@gmail.com>
Subject: My New DNA Muffler
Date: Sat, 31 Jan 2009 08:48:47 -0600
To: Rotary motors in aircraft <flyrotary@lancaironline.net>
Hey Guys,

My new DNA muffler arrived yesterday so I thought I would post a couple of pictures with some information and first impressions.
 It appears to be very well built, all tig welded, and no packing to burn out.  It weighs just under 5#, which is half of what the Hushpower II weighs, so if it works, I will have reduced my fwf weight by 5#.  To be totally honest, my HPII probably no longer weighs 10# as most of the innards have long departed the a/c. 

The model I purchased was the Gen II - Collector Series, p/n 1040.  It has 3" inlet and 3" outlet, with a 4" dia. body.  Total length is21", body length is 15".  Literature says that it is good for 1000 hp, so it may have a chance of lasting at least 100 hrs on my 3-rotor running for hours at WOT.  We'll have to wait and see on the longevity.  I have a decible meter, so I can take some before and after readings.  Cost was $152 with shipping from Canada.

I'm going out to the airport this morning to see how well it fits.  More on how well it fits & works later...

Mark S.
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