Marine coatings firm GIT Coatings has launched a new graphene-based propeller coating system that it says can deliver bunker savings of up to 5%. The company unveiled the product, named XGIT-VORTEX, ...

Propeller design is one of the most complicated compromises in naval engineering, balancing thrust, cavitation, vibration, ...

Figure 1: Cavitation pattern on the propeller of the research catamaran Frans Hendrik Lafeber Figure 2: Noise map of the Dutch and German EEZ’s in the N. Sea. As underwater radiated noise levels in ...

Combination of carbon, glass and epoxy resin produces a strong replacement for nickel/aluminum/bronze metal, the current propeller standard. Damage-tolerant reinforcing fabric strengthens highly ...

QinetiQ has recently completed sea trials of a new composite propeller in Falmouth Bay, UK. With a 2.9 metre diameter it is the world’s largest propeller. However, despite its immense proportions it ...

Increasing levels of underwater noise generated by shipping can threaten marine mammals and fish, which rely on sound to navigate, communicate and find food. Now a new technology capable of reducing ...

This is an opinion column. A new propeller design will likely start popping up on boats in Alabama and across the nation in the next few months—provided that the manufacturer eventually gets the price ...

Sir Charles Parsons, who invented the steam turbine in 1884, couldn't figure out why his revolutionary steam-driven yacht Turbinia could only manage a measly 19 knots when his calculations suggested ...