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Well, I hope it works out. A somewhat similar muffler (although not as
large in diameter) with a cooling tube has been tried. It was fired up at
Tracy's, it is my opinion that the design failed to mute the exhaust very
much. But, not certain how much the two designs have in common other than
appearances. Seeing as the exhaust BTU is equivalent to approx twice the
heat discharged through the radiators and mufflers together, it is my
opinion, that its going to take a LOT of cooling air to make any difference
in temps of the oven. However, I would love to see it work, I've got the
room - just can't take the heat. {:>)
Ed
----- Original Message -----
From: "Jerry Hey" <jerryhey@earthlink.net>
To: "Rotary motors in aircraft" <flyrotary@lancaironline.net>
Sent: Tuesday, March 08, 2005 3:33 PM
Subject: [FlyRotary] Re: Tangential muffler
Thanks for your comment Ed. The cool tube is intended to extract a
lot of that heat and pump it overboard. We shall soon see if it works
as Bob White will be running his engine soon. I got my fingers
crossed.
On Tuesday, March 8, 2005, at 03:17 PM, Ed Anderson wrote:
> Jerry, Tracy Crook flew with a similar Tangential muffler for a number
> of
> hours. The neat thing is it does fit under the cowl and suppress sound
> nicely, the un-neat thing is it acts like a large oven under the cowl
> and
> keeps cowl temps highly elevated. I am fairly certain that is why
> Tracy
> removed it.
>
> Ed A
>
>
> ----- Original Message -----
> From: "Jerry Hey" <jerryhey@earthlink.net>
> To: "Rotary motors in aircraft" <flyrotary@lancaironline.net>
> Sent: Tuesday, March 08, 2005 3:01 PM
> Subject: [FlyRotary] Tangential muffler
>
>
>> From the "other" list comes the report that someone has tested a
>> similar exhaust system to what I have been building on his PowerSport
>> p
>> ported engine. . He reports the muffler worked well to quiet the
>> exhaust note and that the engine seemed to breath freely. The neat
>> thing about this exhaust system is that it fits inside the cowl.
>> Here are a couple of photos showing the muffler on a Mustang 2. The
>> muffler is 6" o.d. x 10 inches long. Construction is 321 16 gage.
>> The cool tube running through the center is intended to cool the
>> exhaust gas. Fresh air is plumbed through it. The engine mount is
>> the S-beam. Jerry
>>
>
>
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>>>> Homepage: http://www.flyrotary.com/
>>>> Archive: http://lancaironline.net/lists/flyrotary/List.html
>>
>
>
>
>>> Homepage: http://www.flyrotary.com/
>>> Archive: http://lancaironline.net/lists/flyrotary/List.html
>
>> Homepage: http://www.flyrotary.com/
>> Archive: http://lancaironline.net/lists/flyrotary/List.html
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