Today's Message Index:
----------------------
1. 01:40 AM - Re: exhaust noise (rnjthompson@aol.com)
2. 01:52 AM - Re: exhaust noise (rnjthompson@aol.com)
3. 05:46 AM - Re: exhaust noise (Chris Schuermann)
4. 06:23 PM - Re: exhaust noise (Bill Bow)
5. 06:37 PM - Re: exhaust noise (Chris Schuermann)
Message 1
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| Subject: | Re: exhaust noise |
--> Commander-List message posted by: rnjthompson@aol.com
Chris,
Yes it is me who IF I EVER GET OUT OF TAIWAN will endeavour to bring one to the
flyin.It basically consists
-----Original Message-----
From: Chris Schuermann <cschuerm@cox.net>
Subject: Commander-List: exhaust noise
--> Commander-List message posted by: Chris Schuermann <cschuerm@cox.net>
I seem to recall that a Commander owner was going to perform some
experiments in an attempt to quite their exhaust noise down. As an
owner of an augmentor-tube tube airplane which makes quite a bit of
noise (IMO a beautiful sound) I'd be very interested in the results of
any experiments. We're beginning to get some complaints at our airport
and would like to be proactive in this area.
thanks
Chris
Message 2
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| Subject: | Re: exhaust noise |
--> Commander-List message posted by: rnjthompson@aol.com
Hi Chris,
I will try this again as I seem to have sent the last one unfinished. The thing
is a tube about 4 in long going ito a taper of about 14 in long with a 1/2 in
hole at the end. From the point going forward there are 3/8 holes in three triangular
patterns going about 6 in.(the final number of holes is still to be determined)
This entier cone has three vanes radiating outwards that are welded
to the cone and bolted to the augmentor tube. Each vane is about 8 in long and
has a tab on the trailing edge (to cause turbulence in the aug.The front at
the parrallel tube extends forward of the firewall and covers the stacks.I have
made all the patterns etc and only need to cut the tin. I used .030 304 grade
stainless sheet. I will bring a prototype to the flyin. I am also going to adapt
it to fit a T Bone.
Regards
Richard
-----Original Message-----
From: Chris Schuermann <cschuerm@cox.net>
Subject: Commander-List: exhaust noise
--> Commander-List message posted by: Chris Schuermann <cschuerm@cox.net>
I seem to recall that a Commander owner was going to perform some
experiments in an attempt to quite their exhaust noise down. As an
owner of an augmentor-tube tube airplane which makes quite a bit of
noise (IMO a beautiful sound) I'd be very interested in the results of
any experiments. We're beginning to get some complaints at our airport
and would like to be proactive in this area.
thanks
Chris
Message 3
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| Subject: | Re: exhaust noise |
--> Commander-List message posted by: Chris Schuermann <cschuerm@cox.net>
rnjthompson@aol.com wrote:
> Hi Chris,
> The thing is a tube about 4 in long going ito a taper
Hi Richard.
I've studied the "Swiss muffler" that seems to be pretty popular in
Europe, but I don't think it will work for my needs. They use it on
O-200's and smaller and I'm pretty sure my 540's will tear it up quickly.
Your description is very interesting, but I can't quite envision the
details. How did you come up with that design? Clearly there is a lot
of thought put into it. Have you tested it and how is it working so
far? Do you have any drawings/pictures/etc you could share?
Thanks,
Chris
Message 4
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| Subject: | Re: exhaust noise |
--> Commander-List message posted by: "Bill Bow" <bowing74@earthlink.net>
I was having a little problem with the picture in my head too.:>)
bilbo
----- Original Message -----
From: "Chris Schuermann" <cschuerm@cox.net>
Subject: Re: Commander-List: exhaust noise
> --> Commander-List message posted by: Chris Schuermann <cschuerm@cox.net>
>
>
> rnjthompson@aol.com wrote:
>> Hi Chris,
>> The thing is a tube about 4 in long going ito a taper
>
> Hi Richard.
> I've studied the "Swiss muffler" that seems to be pretty popular in
> Europe, but I don't think it will work for my needs. They use it on
> O-200's and smaller and I'm pretty sure my 540's will tear it up quickly.
> Your description is very interesting, but I can't quite envision the
> details. How did you come up with that design? Clearly there is a lot
> of thought put into it. Have you tested it and how is it working so
> far? Do you have any drawings/pictures/etc you could share?
>
> Thanks,
> Chris
>
>
>
>
>
>
>
Message 5
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| Subject: | Re: exhaust noise |
--> Commander-List message posted by: Chris Schuermann <cschuerm@cox.net>
Bill Bow wrote:
> I was having a little problem with the picture in my head too.:>)
yeah, but the voices are loud and clear! :-)
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