correct! this is why I'm thinking of building one. The hardest part imo of building a jet unit is the venturi aka bowl, that holds the stator. I'd love to use aluminum, but since brass is so easy to work with, I'll probably use that.

The whole idea is that at higher speeds the intake should be smaller, and the output should be smaller, problem is, you're increasing pressure, so at lower speeds, you'll be less efficient, since you wont be ramming water in like at high speeds. This is where the variable intake comes in.

I've got a question could I use two radios in the same boat on different frequencies. I dont know if they still interfere due to proximity. This way I could experiment with a variable intake and output. I want to make a square boawl and nozzle so making is variable is easier. Would kind of be a test mule.