It took a few tries to get the size and pitch of both propellers narrowed down to where the boat would move forward into the wind, but move it does. A second major iteration of the build uses a ...

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 ...

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 ...

DUNEDIN, Fla. - A 66-year-old man died Wednesday after getting caught in a boat's propellers while submerged underwater, the Pinellas County Sheriff's Office said. According to PCSO, Charles ...