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We usually focus on automobiles, but
when a pilot named John approached us looking to quiet down his plane, we
were confident we could help. After some consultation, we suggested Brown
Bread and Lcomp. John set to work and wrote up this review complete with
before and after sound measurements.
I have results from the tests on my Titan
Tornado S airplane.
I must say that you and your products are
exactly what you state they are. The shipping was came as promised and
your help and expert advise was invaluable. The Brown Bread was very easy
to apply and the Lcomp was very efficient to work with.
It was a challenge to try and determine
where the noise was coming from. There was wind noise, engine noise and
harmonic vibration from the aft Kevlar panels.
I chose to use the Brown Bread in the aft
areas of the Kevlar panels. I used it in the upper area directly below the
engine. I also used it to seal the rubber gaps where the wings meet the
fuselage. I only have one more place to add the Brown Bread. It is to the
immediate underside of the wing inside the cockpit.
I used the Lcomp to reinforce the bulkhead
vinyl door. I used upholstery glue and sprayed it on. I then cut the Lcomp
to size and installed it. It made the bulkhead more rigid yet pliable so I
can still get in and out of the aft equipment compartment.
Here are some numbers taken by a decibel
meter. I first flew the plane without any sound deadening material and
then I completed most of the work. (except the last section on the inside
roof area in the cockpit) I flew it again and did the same tests holding
the decibel meter in the same position.
Before After
Cruise Speed 110 db
105 db
Overall, very successful!
Full Throttle 112 db
106 db
I still feel there is work to do regarding
wind noise that enters through the doors. Other than that, I was very
impressed with the two products that I used.
Below are some photo's of the job.
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