Today's Message Index:
----------------------
1. 04:20 AM - Re: Cabin noise (William Bernard)
2. 05:21 AM - Re: Cabin noise (Robert Ardis)
3. 06:21 AM - Re: Cabin noise (Estelle Danner)
4. 08:32 AM - Re: Cabin noise (Fred Weaver)
Message 1
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--> Tailwind-List message posted by: "William Bernard" <billbernard@worldnet.att.net>
In the 'for whatit's worth' category, several years ago at OSH, I stopped by
a booth selling high tech sound deadening material. When I told the guy that
the Tailwind was fabric covered, his response was "don't bother" with sound
deadening.
Only slightly off this thread, I wonder what our European members are doing
about noise, especially from the exhaust?
Bill
----- Original Message -----
From: "Rich Ellis" <rjrellis@yahoo.com>
Subject: Re: Tailwind-List: Cabin noise
> --> Tailwind-List message posted by: Rich Ellis <rjrellis@yahoo.com>
>
> Red,
>
> Very interesting information. It would be of most
> interest to see the difference in db before and after
> noise deadening was added to your W10. rle
>
> --- red <redswings@reds-headers.com> wrote:
> > I've got some:
> >
> > O320 W-10 with 8lbs of sound barrier and absorber;
> > and upholstery
> >
> > dB taxi climb 2500
> > cruise 2000cruise
> >
> > Ear level 92 108 108
> > 102
> > Windshield 93
> > Lap 87
> >
> > I have since changed mufflers and gotten about 2 dB
> > less in cruise. I want to try the dive to 250 with
> > closed throttle and see what that noise level is, as
> > suggested. that would tend to isolate wind noise
> > from engine noise. For the record, same meter, same
> > w10, before any door seals or sound deadening, but
> > with upholstery, 117 at high cruise! say what?
> >
> > Cessna 180, not generally thought of as a quiet
> > a/c,1953 with O470U, Beech mufflers, no sound
> > deadening on firewall,standard windshield and side
> > windows, same categories, same meter
> >
> > 86 102
> > 98 94
> >
> > Red Hamilton
> > 374WT
> >
> >
> > ----- Original Message -----
> > From: Dave Conrad
> > To: tailwind-list@matronics.com
> > Sent: Thursday, May 06, 2004 8:11 PM
> > Subject: Re: Tailwind-List: Cabin noise
> >
> >
> > It would be interesting to know what the same
> > meter would read in a Cessna 172 or warrior. Dave
> > Conrad
> > On Thursday, May 6, 2004, at 08:19 AM, DaveM
> > wrote:
> >
> >
> > I visited Red Hamilton at Ft. Bragg, and we got
> > to talking about noise levels in the Tailwind. He
> > has been taking readings in his new one, and adding
> > some sound deadening material. He loaned me his
> > sound meter, and I took the following readings in
> > N168A (Clement trike) on the way back to Yolo
> > County. Thought the group might be interested.
> >
> > Here are the results:
> >
> > DB Taxi Runup Climb
> > Cruise (2500) Slo Cruise (2000)
> > Ear level 94 104
> > 106 104-6 94
> > Windshield 93 105 108
> > 109-114 95
> > Lap level 90 104
> > 107 106 94
> >
> > As you can see, the levels are fairly high, no
> > matter where in the cabin it is measured. I think
> > the meter is set to average sound intensity over a
> > short (1 sec or so) interval.
> > Dave
> > N202Q
> > N168A
> >
> >
>
>
> =====
> Richard L. Ellis, M.D.
> Gundersen Lutheran Health System
> Co-Director
> Norma J. Vinger Center for Breast Care
> 1900 South Avenue
> La Crosse, WI 54601
> 800.362.9567, ext. 52102
> rjrellis@yahoo.com
>
>
> __________________________________
> http://hotjobs.sweepstakes.yahoo.com/careermakeover
>
>
Message 2
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--> Tailwind-List message posted by: "Robert Ardis" <ardis_rb@hotmail.com>
I have used ample sound deadening in my W-8--both above, below and around
the cabin area.
I have also used thicker windshield and side windows as well as good door
seals. I have no db numbers but seems to be an improvement.
>From: "William Bernard" <billbernard@worldnet.att.net>
>Reply-To: tailwind-list@matronics.com
>To: <tailwind-list@matronics.com>
>Subject: Re: Tailwind-List: Cabin noise
>Date: Sat, 8 May 2004 06:22:11 -0500
>
>--> Tailwind-List message posted by: "William Bernard"
><billbernard@worldnet.att.net>
>
>In the 'for whatit's worth' category, several years ago at OSH, I stopped
>by
>a booth selling high tech sound deadening material. When I told the guy
>that
>the Tailwind was fabric covered, his response was "don't bother" with sound
>deadening.
>
>Only slightly off this thread, I wonder what our European members are doing
>about noise, especially from the exhaust?
>
>Bill
>----- Original Message -----
>From: "Rich Ellis" <rjrellis@yahoo.com>
>To: <tailwind-list@matronics.com>
>Sent: Friday, May 07, 2004 7:47 AM
>Subject: Re: Tailwind-List: Cabin noise
>
>
> > --> Tailwind-List message posted by: Rich Ellis <rjrellis@yahoo.com>
> >
> > Red,
> >
> > Very interesting information. It would be of most
> > interest to see the difference in db before and after
> > noise deadening was added to your W10. rle
> >
> > --- red <redswings@reds-headers.com> wrote:
> > > I've got some:
> > >
> > > O320 W-10 with 8lbs of sound barrier and absorber;
> > > and upholstery
> > >
> > > dB taxi climb 2500
> > > cruise 2000cruise
> > >
> > > Ear level 92 108 108
> > > 102
> > > Windshield 93
> > > Lap 87
> > >
> > > I have since changed mufflers and gotten about 2 dB
> > > less in cruise. I want to try the dive to 250 with
> > > closed throttle and see what that noise level is, as
> > > suggested. that would tend to isolate wind noise
> > > from engine noise. For the record, same meter, same
> > > w10, before any door seals or sound deadening, but
> > > with upholstery, 117 at high cruise! say what?
> > >
> > > Cessna 180, not generally thought of as a quiet
> > > a/c,1953 with O470U, Beech mufflers, no sound
> > > deadening on firewall,standard windshield and side
> > > windows, same categories, same meter
> > >
> > > 86 102
> > > 98 94
> > >
> > > Red Hamilton
> > > 374WT
> > >
> > >
> > > ----- Original Message -----
> > > From: Dave Conrad
> > > To: tailwind-list@matronics.com
> > > Sent: Thursday, May 06, 2004 8:11 PM
> > > Subject: Re: Tailwind-List: Cabin noise
> > >
> > >
> > > It would be interesting to know what the same
> > > meter would read in a Cessna 172 or warrior. Dave
> > > Conrad
> > > On Thursday, May 6, 2004, at 08:19 AM, DaveM
> > > wrote:
> > >
> > >
> > > I visited Red Hamilton at Ft. Bragg, and we got
> > > to talking about noise levels in the Tailwind. He
> > > has been taking readings in his new one, and adding
> > > some sound deadening material. He loaned me his
> > > sound meter, and I took the following readings in
> > > N168A (Clement trike) on the way back to Yolo
> > > County. Thought the group might be interested.
> > >
> > > Here are the results:
> > >
> > > DB Taxi Runup Climb
> > > Cruise (2500) Slo Cruise (2000)
> > > Ear level 94 104
> > > 106 104-6 94
> > > Windshield 93 105 108
> > > 109-114 95
> > > Lap level 90 104
> > > 107 106 94
> > >
> > > As you can see, the levels are fairly high, no
> > > matter where in the cabin it is measured. I think
> > > the meter is set to average sound intensity over a
> > > short (1 sec or so) interval.
> > > Dave
> > > N202Q
> > > N168A
> > >
> > >
> >
> >
> > =====
> > Richard L. Ellis, M.D.
> > Gundersen Lutheran Health System
> > Co-Director
> > Norma J. Vinger Center for Breast Care
> > 1900 South Avenue
> > La Crosse, WI 54601
> > 800.362.9567, ext. 52102
> > rjrellis@yahoo.com
> >
> >
> >
> >
> > __________________________________
> > http://hotjobs.sweepstakes.yahoo.com/careermakeover
> >
> >
> >
> >
> >
> >
> >
> >
> >
>
>
Message 3
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--> Tailwind-List message posted by: "Estelle Danner" <edanner@jvlnet.com>
I have to agree with you Bill with the short exsaust pipes and the thin skin
all the way around buy a good noise canceling head set and dont spend any
time trying to make it quite . its a noise maker let it snort what the heck
you wont be in it that long anyhow . in 2 hs. think about how far you will
have gone and how many people you will have pissed off and passed up
.Bob Danner
----- Original Message -----
From: "William Bernard" <billbernard@worldnet.att.net>
Subject: Re: Tailwind-List: Cabin noise
> --> Tailwind-List message posted by: "William Bernard"
<billbernard@worldnet.att.net>
>
> In the 'for whatit's worth' category, several years ago at OSH, I stopped
by
> a booth selling high tech sound deadening material. When I told the guy
that
> the Tailwind was fabric covered, his response was "don't bother" with
sound
> deadening.
>
> Only slightly off this thread, I wonder what our European members are
doing
> about noise, especially from the exhaust?
>
> Bill
> ----- Original Message -----
> From: "Rich Ellis" <rjrellis@yahoo.com>
> To: <tailwind-list@matronics.com>
> Sent: Friday, May 07, 2004 7:47 AM
> Subject: Re: Tailwind-List: Cabin noise
>
>
> > --> Tailwind-List message posted by: Rich Ellis <rjrellis@yahoo.com>
> >
> > Red,
> >
> > Very interesting information. It would be of most
> > interest to see the difference in db before and after
> > noise deadening was added to your W10. rle
> >
> > --- red <redswings@reds-headers.com> wrote:
> > > I've got some:
> > >
> > > O320 W-10 with 8lbs of sound barrier and absorber;
> > > and upholstery
> > >
> > > dB taxi climb 2500
> > > cruise 2000cruise
> > >
> > > Ear level 92 108 108
> > > 102
> > > Windshield 93
> > > Lap 87
> > >
> > > I have since changed mufflers and gotten about 2 dB
> > > less in cruise. I want to try the dive to 250 with
> > > closed throttle and see what that noise level is, as
> > > suggested. that would tend to isolate wind noise
> > > from engine noise. For the record, same meter, same
> > > w10, before any door seals or sound deadening, but
> > > with upholstery, 117 at high cruise! say what?
> > >
> > > Cessna 180, not generally thought of as a quiet
> > > a/c,1953 with O470U, Beech mufflers, no sound
> > > deadening on firewall,standard windshield and side
> > > windows, same categories, same meter
> > >
> > > 86 102
> > > 98 94
> > >
> > > Red Hamilton
> > > 374WT
> > >
> > >
> > > ----- Original Message -----
> > > From: Dave Conrad
> > > To: tailwind-list@matronics.com
> > > Sent: Thursday, May 06, 2004 8:11 PM
> > > Subject: Re: Tailwind-List: Cabin noise
> > >
> > >
> > > It would be interesting to know what the same
> > > meter would read in a Cessna 172 or warrior. Dave
> > > Conrad
> > > On Thursday, May 6, 2004, at 08:19 AM, DaveM
> > > wrote:
> > >
> > >
> > > I visited Red Hamilton at Ft. Bragg, and we got
> > > to talking about noise levels in the Tailwind. He
> > > has been taking readings in his new one, and adding
> > > some sound deadening material. He loaned me his
> > > sound meter, and I took the following readings in
> > > N168A (Clement trike) on the way back to Yolo
> > > County. Thought the group might be interested.
> > >
> > > Here are the results:
> > >
> > > DB Taxi Runup Climb
> > > Cruise (2500) Slo Cruise (2000)
> > > Ear level 94 104
> > > 106 104-6 94
> > > Windshield 93 105 108
> > > 109-114 95
> > > Lap level 90 104
> > > 107 106 94
> > >
> > > As you can see, the levels are fairly high, no
> > > matter where in the cabin it is measured. I think
> > > the meter is set to average sound intensity over a
> > > short (1 sec or so) interval.
> > > Dave
> > > N202Q
> > > N168A
> > >
> > >
> >
> >
> > =====
> > Richard L. Ellis, M.D.
> > Gundersen Lutheran Health System
> > Co-Director
> > Norma J. Vinger Center for Breast Care
> > 1900 South Avenue
> > La Crosse, WI 54601
> > 800.362.9567, ext. 52102
> > rjrellis@yahoo.com
> >
> >
> >
> >
> > __________________________________
> > http://hotjobs.sweepstakes.yahoo.com/careermakeover
> >
> >
> >
> >
> >
> >
> >
> >
> >
>
>
Message 4
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--> Tailwind-List message posted by: "Fred Weaver" <Mytyweav@earthlink.net>
Yeah Bob! I have to say however that Red was over here at Westover last
week and I had an opportunity to listen to his plane as he departed. What a
nice sound.. The exhaust was still very audible but didn't have that "bark"
that's so typical of the 4 cylinder Lycomings. His fairings and trim are on
now and they look great too.. Once he gets a good prop on it, I think he's
really going to scoot.
Weav
----- Original Message -----
From: "Estelle Danner" <edanner@jvlnet.com>
Subject: Re: Tailwind-List: Cabin noise
> --> Tailwind-List message posted by: "Estelle Danner" <edanner@jvlnet.com>
>
> I have to agree with you Bill with the short exsaust pipes and the thin
skin
> all the way around buy a good noise canceling head set and dont spend any
> time trying to make it quite . its a noise maker let it snort what the
heck
> you wont be in it that long anyhow . in 2 hs. think about how far you will
> have gone and how many people you will have pissed off and passed up
> .Bob Danner
> ----- Original Message -----
> From: "William Bernard" <billbernard@worldnet.att.net>
> To: <tailwind-list@matronics.com>
> Sent: Saturday, May 08, 2004 6:22 AM
> Subject: Re: Tailwind-List: Cabin noise
>
>
> > --> Tailwind-List message posted by: "William Bernard"
> <billbernard@worldnet.att.net>
> >
> > In the 'for whatit's worth' category, several years ago at OSH, I
stopped
> by
> > a booth selling high tech sound deadening material. When I told the guy
> that
> > the Tailwind was fabric covered, his response was "don't bother" with
> sound
> > deadening.
> >
> > Only slightly off this thread, I wonder what our European members are
> doing
> > about noise, especially from the exhaust?
> >
> > Bill
> > ----- Original Message -----
> > From: "Rich Ellis" <rjrellis@yahoo.com>
> > To: <tailwind-list@matronics.com>
> > Sent: Friday, May 07, 2004 7:47 AM
> > Subject: Re: Tailwind-List: Cabin noise
> >
> >
> > > --> Tailwind-List message posted by: Rich Ellis <rjrellis@yahoo.com>
> > >
> > > Red,
> > >
> > > Very interesting information. It would be of most
> > > interest to see the difference in db before and after
> > > noise deadening was added to your W10. rle
> > >
> > > --- red <redswings@reds-headers.com> wrote:
> > > > I've got some:
> > > >
> > > > O320 W-10 with 8lbs of sound barrier and absorber;
> > > > and upholstery
> > > >
> > > > dB taxi climb 2500
> > > > cruise 2000cruise
> > > >
> > > > Ear level 92 108 108
> > > > 102
> > > > Windshield 93
> > > > Lap 87
> > > >
> > > > I have since changed mufflers and gotten about 2 dB
> > > > less in cruise. I want to try the dive to 250 with
> > > > closed throttle and see what that noise level is, as
> > > > suggested. that would tend to isolate wind noise
> > > > from engine noise. For the record, same meter, same
> > > > w10, before any door seals or sound deadening, but
> > > > with upholstery, 117 at high cruise! say what?
> > > >
> > > > Cessna 180, not generally thought of as a quiet
> > > > a/c,1953 with O470U, Beech mufflers, no sound
> > > > deadening on firewall,standard windshield and side
> > > > windows, same categories, same meter
> > > >
> > > > 86 102
> > > > 98 94
> > > >
> > > > Red Hamilton
> > > > 374WT
> > > >
> > > >
> > > > ----- Original Message -----
> > > > From: Dave Conrad
> > > > To: tailwind-list@matronics.com
> > > > Sent: Thursday, May 06, 2004 8:11 PM
> > > > Subject: Re: Tailwind-List: Cabin noise
> > > >
> > > >
> > > > It would be interesting to know what the same
> > > > meter would read in a Cessna 172 or warrior. Dave
> > > > Conrad
> > > > On Thursday, May 6, 2004, at 08:19 AM, DaveM
> > > > wrote:
> > > >
> > > >
> > > > I visited Red Hamilton at Ft. Bragg, and we got
> > > > to talking about noise levels in the Tailwind. He
> > > > has been taking readings in his new one, and adding
> > > > some sound deadening material. He loaned me his
> > > > sound meter, and I took the following readings in
> > > > N168A (Clement trike) on the way back to Yolo
> > > > County. Thought the group might be interested.
> > > >
> > > > Here are the results:
> > > >
> > > > DB Taxi Runup Climb
> > > > Cruise (2500) Slo Cruise (2000)
> > > > Ear level 94 104
> > > > 106 104-6 94
> > > > Windshield 93 105 108
> > > > 109-114 95
> > > > Lap level 90 104
> > > > 107 106 94
> > > >
> > > > As you can see, the levels are fairly high, no
> > > > matter where in the cabin it is measured. I think
> > > > the meter is set to average sound intensity over a
> > > > short (1 sec or so) interval.
> > > > Dave
> > > > N202Q
> > > > N168A
> > > >
> > > >
> > >
> > >
> > > =====
> > > Richard L. Ellis, M.D.
> > > Gundersen Lutheran Health System
> > > Co-Director
> > > Norma J. Vinger Center for Breast Care
> > > 1900 South Avenue
> > > La Crosse, WI 54601
> > > 800.362.9567, ext. 52102
> > > rjrellis@yahoo.com
> > >
> > >
> > >
> > >
> > > __________________________________
> > > http://hotjobs.sweepstakes.yahoo.com/careermakeover
> > >
> > >
> > >
> > >
> > >
> > >
> > >
> > >
> > >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
>
>
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