This Jupiter 41 SB is running fine not only because of its captain and trim control, but because of expert selection of propeller characteristics and rotation. Courtesy Jupiter Marine International ...

Boats are propelled forward by various power sources, such as human power, wind power, and internal combustion engines. Nowadays, even electric boats are coming onto the scene. Propulsion for ...

Consider, if you will, the humble motorboat propeller. It is small - usually 3 to 20 pounds with a 9 1/2- to 16-inch diameter - and has a simple job. Its task is to keep its head underwater and turn, ...

Prop Depot, a specialized marine propeller shop, has expanded its inventory and repair capabilities to address increasing demand from boat owners seeking performance upgrades and maintenance solutions ...

Each year, hundreds of boaters spend countless thousands of dollars on machine-shop equipment and bolt-on gadgets in their quest to increase outboard horsepower. Yet the easiest and least expensive ...

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 ...