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Thanks, Charlie....Actually in the cockpit, it is not noisy at all. I was
just concerned about the neighbors and noise abatement, but several others
have told me that it is not loud and is a somewhat pleasing sound. My
brother told me that on the takeoff roll he could not hear the airplane
until I was midfield and closer to him. Hmmmm.....maybe if it ain't broke,
I shouldn't try to fix it, and of course there's nothing wrong with simple.
Paul. gonna leave it alone, Conner
----- Original Message -----
From: "Charlie England" <ceengland@bellsouth.net>
To: "Rotary motors in aircraft" <flyrotary@lancaironline.net>
Sent: Thursday, December 02, 2004 9:08 PM
Subject: [FlyRotary] Re: New Muffler Design
paul wrote:
>Thanks for the info, Ed....One point of interest is that I have the stock
>cast iron manifold inbetween the engine and my tailpipe. It would seem
that
>the cast iron manifold is absorbing a lot of impulses, because everyone
who
>has heard my engine run states that it is not that loud. Perry Mick
>mentioned that he has a standard exhaust pipe following his cast iron
>manifold as well, and has had no problems with it in the few hundred
hours
>he has flown with that setup. (He told me that when I was inquiring
about
>the need for stainless exhaust pipe after the cast iron manifold). Don't
>know how much energy the cast iron absorbs, but it definately absorbs the
>heat so the pipe doesen't get as hot. Curious minds want to know. Take
>care. Paul Conner
>
Hey Paul,
It must be a lot louder in your cockpit than it is on the ramp when that
thing's running. If it were mine & I found that it was making adequate
power with the current manifold, I would fly & enjoy. I found the sound
your plane makes quite pleasing, & I don't like loud airplanes at all.
Go Fly!
Charlie
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