Me either,

Use
http://www.nsxprime.com/FAQ/Miscellaneous/exhausttheory.htm

Bob W.

On Sun, 4 Oct 2009 18:45:06 -0700
"Mike Wills" <rv-4mike@cox.net> wrote:

> That link didnt work for me George.
>
> Mike
>   ----- Original Message -----
>   From: George Lendich
>   To: Rotary motors in aircraft
>   Sent: Sunday, October 04, 2009 3:45 PM
>   Subject: [FlyRotary] Re: engine runup video
>
>
>   Mike,
>   Here's a good site for general info on mufflers, mine and Bill Jepson design is around deflection.
>   www.nsxprime.com/FAQ/Miscellaneous/exhausttheory.html
>   George ( down under)
>     ----- Original Message -----
>     From: Mike Wills
>     To: Rotary motors in aircraft
>     Sent: Monday, October 05, 2009 2:34 AM
>     Subject: [FlyRotary] engine runup video
>
>
>     For anyone who hasnt had that first engine run and is looking for some motivation. A buddy visited the hangar a few weeks ago and shot some video of an engine runup. He posted it to his website and you can find it here:
>
>     http://www.stinsonvoyager.com/images/MikeWills13bEngineRun.wmv
>
>     This was shot right after I re-installed my original muffler after the aborted DNA muffler test. Noticeable in the video is the big staging bog. I had this tuned out about 15 minutes after he shot the video.
>
>     Mike Wills
>     RV-4 N144MW


--
N93BD - Rotary Powered BD-4 - http://www.bob-white.com
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