It’s a rare occasion when a piece of engineering transcends its pure industrial function and becomes art. And it’s even rarer when that metamorphosis is the byproduct of a quest for better performance ...

Sharrow's extraordinary looped propellers were already some 30% more efficient than traditional designs – and now the company has put two of them together into a coaxial, contra-rotating prop that ...

With the variety of stern-drive units available from MerCruiser, it is getting difficult to decide which unit works best and in what applications. The Bravo Three is a twin, counter-rotating prop ...