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 ...
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 ...
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