Dick Allen

THE MOUSSELER is an inexpensive mousse-can muffler that will add power to and reduce noise of .32- to .40-size engines when compared to stock mufflers. Many versions of mousse-can mufflers are in use, especially on Competition Fun-Fly planes. My design is a three-stage unit that can be expected to add about 1,000 rpm while maintaining noise levels between 89 and 95 dB, depending on propeller and rpm. See Sound Measurements table for performance data.