Most famous of these is probably the toroidal propeller that made waves a while ago, mostly in the field of flying drones, but commercial toroidal boat props exist too. Test results of the ...

Enter Seabird’s RaceBird, a boat capable of speeds up to 93 kilometers (58 miles) per hour. Taking inspiration from birds gliding across water, Seabird founder Sophi Horne designed the 24-foot ...