We've seen sound being produced by square and semi-rectangle and rectangular ports. I'm sort of curious now what it would sound like if the ports were slightly slanted, or even in the shape of an acute triangle.
I just took the siren apart and glued each of the stator port things (what ever you want to call them) way closer (about 1mm) to the chopper and it is going to be alot louder if it can run without anything hitting at full rpm! if so I will get another vid some time!
Of course we want you to keep making sirens! I subscribed to your channel for a reason, I always look forward to something new. Have you seen the PVC train horns? Give those a try too if you have an air compressor and tank.
What happened when Napoleon went to Mt. Olive? Popeye got pissed.