Mailing List flyrotary@lancaironline.net Message #36179
From: Russell Duffy <rusty@radrotary.com>
Subject: RE: [FlyRotary] Re: HushPower Mufflers
Date: Wed, 14 Mar 2007 10:36:39 -0500
To: 'Rotary motors in aircraft' <flyrotary@lancaironline.net>
Message
Looks like there will probably be a net weight reduction of approx 1 lb.  But the sound reduction should be much higher {:>). 
 
Hi Ed,
 
Sorry if I missed this (been kinda skimming the posts recently), but are you planning to make a more conventional system using just one one muffler?  If so, I won't be surprised if you don't end up making more power, AND getting quieter exhaust.  What will Ron have to complain about then :-)   
 
By the way, I see you must have access to the resonator - did you ever try just the resonator by itself as a muffler?
 
I bought the resonator when someone else (sorry, can't recall who) mentioned it on the list.  I thought it might be at least enough of a muffler to work for the single rotor, and it's clearly lighter.  My plan is to try it and see how it sounds.  I still have the muffler set up to use on the single rotor, so perhaps I could get a comparison between the two.  This is just another good reason to run the single rotor on a test stand for a while, to sort these things out. 
 
Rusty (retrieved the Dominator on a long road trip yesterday) 
 
 
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