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, ...

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Because the boat is above the water's surface, and the engine and foil are below, hydrofoils provide extremely smooth rides, and are virtually immune to the water's chop. Drag is also reduced ...

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 ...