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 ...
Schweitzer suffered lacerations from the propeller, and broke a few bones in his back. So, it’s possible. Keep an eye out. Related: Maui Waterman Zane Schweitzer Badly Injured in Boat Collision ...
Ericsson was the inventor of the propeller, and told a curious story about his first propeller boat, and a Commission of the British Admiralty. Mr. Raymond obtained his extraordinary information ...
He remembers watching his right arm sink to the bottom of a reef after the boat’s propellers severed it at the elbow. He remembers the water clouding with blood from gashes in both legs.