QUESTION: I’m going to buy a new twin-engine boat. What can you tell me about counter-rotation outboards? ANSWER: Counter-rotation outboards turn their propellers in opposite directions. The starboard ...

Over three years ago, Suzuki broke new ground in outboards when it introduced its DF350A, which featured contra-rotating propellers seen previously in sterndrive applications. The dual-prop setup ...

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 ...

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 ...

Technology is evolving so dramatically that the products on display at this year’s boat show compared with the items of a few years ago are as different as today’s boats are from the ones sailed by ...