The second picture appears to show the rad exit duct with exhaust
augmentor as Paul guessed previously. It also appears that the ony

muffler

was the augmentor tube. I'd be curious as to how loud this config

is.

Mike Wills

Yes, and it also shows two (2) pretty beat up s/s lines waiting for

disaster to

happen..............Guys, when working adjacent to ANY kind of plumbing

lines

be very careful not to damage them, if it's that tight remove and

replace them

after....It's a big no-no which will eventually, silently, GET-YA.

                                                           Butch

There is also another crack I just noticed. This is rather strange.
Both failures are around welds. I also wonder if it is
caused by running the exhaust at 1700 F continuously.

Furthermore I don't think that augmentor set up is helping to
cool the exhaust system.

BTW Burns Stainless is now carrying Inconel tubing bends.
And Wiggins couplings for that matter.

It looks like the ss tubes have been over heated they are black instead of
brown. No ss will hold up to these temps for a long period of time. The
surface is rough which looks like scaling of the surface has occured. Just
think of this scale going through the hot section of a turbocharger if it
occurs on the inside of the tube as will. It did on mine when I was running
it on the the test stand.
perhaps nickel based material would be better.
Paul, perhaps you might republish my discussion. I covered this problem. The
exhaust system on a rotary is a real problem and can be a lethal problem if
not approached properly.
chris smale
smale@ncinternet.net

Sure. You will have to dig it up and resend it.

Paul Lamar
 
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