I have an old chrome whistle, like coaches use. My Dad always used it to call the horses and dogs when it was feeding time.
I just did a bit of R&D out in the shop using my air compressor.
- If the air moves over the upper slot, the whistle doesn't blow (like holding it out the window with mouthpiece into the air).
- If you tilt the back down so the upper slot isn't in the slip stream of air, the whistle will blow at a low amount of air into the mouthpiece, but not as loud as when you blow through it with your mouth.
- Too much wind speed and the internal ball sticks in the upper slot.
So I guess the pipe organ design, as originally discussed, or the nerf style are preferred going forward?
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