I like this muffler because it is fail safe.

    --
    Paul Lamar ...No rotor no motor.


Are those tubing segments?
Note the sag in some.

Lynn E. Hanover

I don't know. It is near impossible for them to sag into a configuration
that blocks the flow.

Here is another fail safe design. The Brits invented it almost
100 years ago. It was used on Brooklands race cars. It is called
the Fishtail muffler.

The flat panels must be beefed up or they will resonate and crack.

The last one is a tuned tangential with Fishtail.

Paul Lamar ...No rotor no motor.

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