Dear Paul
     If I remember right it was said that a sq. tail pipe deadened the
exhaust noise.What if we made the muffler sq also so the sound would
bounce around and be deadened. Give me some feed back on this subject.
                                                               Regards
                                                                Ed Klepeis

Worth a try. Easier to build.

PL

Square can be problematic, with their large flat sides and tightish corners.
I tried a couple on an experimental and they would not last long at all, I
think they were eight and ten hours each. They are used in auto applications
but there they do not see the heat and vibration of an a/c cowling. Of
course if you don't mind the weight and drag penalties then out in the
slipstream behind the cabin they might be okay. Isn't TC using a set up like
that ?

John Gibbons


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