This is Gary's $900 Inconel muffler. Unfortunately it misses
the concept of a pure tangential muffler as the pipes come in
on a radius rather than in on a tangent. 

This muffler is used in conjunction
with a second muffler down stream and the combination is very quiet
indeed. Two of these were made. There is one other rotary powered gyro 
running this muffler. The second one cracked in the front diaphragm until a
shield was placed over it so as to prevent the slip stream from impinging
directly on the diaphragm thereby generating a severe thermal 
gradient in turn causing high stresses in the metal diaphragm.

Paul Lamar
 
The AirCraft Rotary Engine NewsLetter.              Powered by Linux.

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