Nautical disruptor Sharrow Marine has been hard at work fast-expanding its lineup of innovative twisted-loop propellers, releasing tweaked models for new applications while also ramping up overall ...

These strangely-shaped twisted-loop propellers look like a revolutionary (sorry) advance for the aviation and marine sectors. Radically quieter than traditional propellers in both air and water, ...

A pontoon boat presents a special challenge in docking: It puts multiple keels in the water, and thus resists pivoting. The wide, flat sides catch the wind, compounding your handling headache. The ...