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----- Original Message -----
Sent: Thursday, September 18, 2003 9:25
AM
Subject: [FlyRotary] Re: 20B
At 09:50 PM 9/17/2003 -0400, you wrote:
- ----- Original Message -----
- From: Mark Steitle
- To: Rotary motors in
aircraft
- Sent: Wednesday, September 17, 2003 9:01 PM
- Subject: [FlyRotary] Re: 20B
- I followed Ed Anderson's lead and used 304-SS, schedule 40, from R.B.
Wagner (www.rbwagner.com). From what Ed discovered, the
added wall thickness is thick enough to dissipate the heat.
The main pipe is thinner as the worst of the heat has been dissipated by
the time it gets down that far downstream. He has been running his
exhaust system for a long time without any problem. The drawback is
that its heavier than thinwall. My 20B exhaust system weighs
20#.
- Mark S.
- WELL, I never claimed it was light, Mark {:>). In
fact, folks have told me that if I had just mounted it to the firewall
more securily, I could have used it as my engine mount. But, you are
correct, no problem with the headers after 293+ engine hours on them. I
too use smaller 0.065 stainless steel tube after the headers.
-
- Ed Anderson
However... you have to realize that the 20# figure for my exhaust system
is INCLUDING the muffler. Anyone know the weight of a Spin-Tech
muffler?
Mark S.
Thats impressive. My twin 4' holey tubes I use as
exhaust mufflers weighs 16lbs together plus weight of header.
Ed
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