Did anybody test the rpm of the 65161 motor under water and what prop you are using?

I’m going to build my own efoil. Just wondering what rpm the 65161 motor will be when under water and what prop to use. Thanks everyone.

There are a couple of threads discussing it.
If you want a quick estimation, multiply the free spining rpm (kV×volts) by 0.7. That should be close enough.