Built in 1953, the historic SS Badger returns to Sturgeon Bay April 30 under its own power for work before its season of ...

VerVelde said the repairs to the propeller shaft bearing requires taking the boat out of the water and removing its 13-foot, 10-inch starboard propeller. This repair is different than the Badger's ...

A second major iteration of the build uses a single shaft with no gears, with the trade-off that neither propeller is facing an ideal direction, but this has the added benefit of the boat ...

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 ...