The propellers of the world's ships and boats create a constant drone that disrupts ocean life. New propeller designs based on loops could one day quiet that drone and be more fuel efficient. Sharrow ...

If “underwater scooters” become the next big thing, then Sublue has it covered. The company is introducing its latest compact product, the Sublue MixPro, which has two propellers to pull you along ...

Film Your Underwater Adventures With This Tiny Scooter At CES, Chinese company Sublue will demo the MixPro, which it claims is the smallest double-propeller underwater scooter to come to market. It ...

Snorkellers and swimmers that would like a little help to propel themselves through the water while exploring under the waves, may be interested in a new project which uses a little Arduino hardware ...

Imagery released today by Northrop Grumman provides a close up view of one of the two rear propellers of the Manta Ray UUV (uncrewed underwater vehicle). Just a few hours after a new 360° video of the ...

In just over a week Hydrex diver/technicians traveled to Finland, Germany, the Netherlands and France to assist shipowners with damaged propeller blades. On two bulkers the blades were cropped while ...

Oscar Propulsion Limited and the University of Strathclyde have come up with a way to reduce underwater radiated noise from ship propellers. According to Oscar Propulsion, its patented PressurePores ...

Conventional marine propellers remain the standard propulsion instrument for ocean vessels, small to large boats, and underwater vehicles. Considerations are made to match the engine’s power, shaft ...