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 ...

Hurtigruten Norway unveiled plans for its first zero-emission ship. Initially announced in March 2022 under project name “Sea Zero,” early concept plans and renderings for the energy-efficient cruise ...

Hurtigruten has released updated plans for its Sea Zero project, the zero-emission ship scheduled to debut in 2030. With the help of large batteries and sails, the ship will be able to sail entirely ...

The Russian Tu-95 'Bear' isn't just a relic of the Cold War, with the potential for a nuclear payload capable of untold devastation. It's eight contra-rotating propellers also enable to it hold the ...

Wärtsilä, ship power system integrator, and IHI Marine United Inc. (IHIMU) of Japan, have concluded a co-operation agreement. Under the agreement, Contra-Rotating Propeller (CRP) systems developed by ...