I'm fresh out of deathless prose but yes, I did use a tangential
muffler for about 800 hours (with non turbo rotor housings. It failed
after about 20 hours on the turbo parts. I'm sure it would last
longer with heavier material (I used .035 321 SS). Heck, cast iron
will last forever if you use enough of it.
The 'air cooled exhaust' may work but I must confess that I don't quite
get it. It may work just fine but is it the air or just thicker
material? Also, high pressure air is a very valuable commodity in an
aircraft. Use it wisely.
Tracy
<...
I am fairly certain that is why Tracy removed it ...>
I'd like to hear
more around that. I heard something about it bulging out and blowing up
when associated with turbo rotor housing, and also that it might be a little
more sound if it had been made of thicker material. I'd also like
someone's estimate of how much ceramic coating the thing might help with the
"oven" phenomenon. I'd like to do it that way, but am leaning toward
turbo rotor housings and have to worry about that aspect.
Tracy?
A couple hundred words of deathless prose on this? ... Jim
S.
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
>>
>
>>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
>>