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Re-posting this from RV-list to FlyRotary list.
David
----- Original Message -----
From: "Frank van der Hulst (Staff WG)" <F.vanderHulst@ucol.ac.nz>
To: <rv-list@matronics.com>
Sent: Tuesday, April 27, 2004 9:19 PM
Subject: RV-List: Mazda 13B mufflers
> --> RV-List message posted by: "Frank van der Hulst (Staff WG)"
<F.vanderHulst@ucol.ac.nz>
>
> Hi,
>
> Just a heads-up for anyone interested... the latest Sport Flying
> magazine (published by NZ Sport Aviation Assn, our equivalent of EAA)
> has an article on the Aero Sport International
> http://www.aero-sport.com/Products/Index.asp Kahu gyroplane, which is
> designed round a 13B engine, converted for aeronautical use.
>
> The exhaust system might be of interest to RV-list members with (or
> planning) 13B rotary engine installations. The article claimed that
> switching to this exhaust had reduced noise from 101dB down to 79-81dB.
> In the photo, the exhaust looked to be a cylinder about 8" in diameter
> by maybe 12" long, with a helical pipe, about 2" in diameter, going
> around and in and out of the cylinder. The text said the exhaust design
> was based on some Russian research. If anyone's interested in more
> information, I can ask for permission to scan the article and photos.
>
> Frank
> Learn real skills for the real world - Apply online
> at http://www.ucol.ac.nz or call 0800 GO UCOL
> (0800 46 8265) or txt free 3388 for more information
> and make a good move to UCOL Universal College of
> Learning.
>
> Enrol with a public institute and be certain of your
> future
>
>
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