This is one of the toroidal propellers we've tested in this video: https://youtu.be/w90gM7bGdvk
This is the right propeller. To get the left version, simply reflect it in the slicer.
We've achieved the avg max speed of 2.26 m/s, at 1079W for 2 of them.
The author marked this model as their own original creation.