Here’s what a 20B with tangential
muffler and secondary resonator sounds like. Max rpm in the video is
about 3400.
http://members.cox.net/alg3/Runclip.wmv
Al
The sound of the engine, prop and windblast in the
cockpit (canopy not on) is unbearable without the hearing protectors I was wearing.
Ordering a HushPower II muffler for it this week. No muffler was
installed during the video.