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 ...

German researchers are launching a new project to tackle one of the ocean’s loudest problems. Ship propellers create massive noise that disrupts marine life. This interference breaks the communication ...

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 ...