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
>
>
>
> >>  Homepage:  http://www.flyrotary.com/
> >>  Archive:   http://lancaironline.net/lists/flyrotary/List.html