The company calls this a contra-rotating vertical turbine, or CRVT. Again, the heaviest parts and the ones requiring most maintenance are at the bottom, below the buoyant pontoon, right down near ...

Veth Propulsion by Twin Disc introduced a new contra-rotating propulsion system designed for passenger vessels and ferries ...

Tribest, a leading provider of wellness appliances designed to make healthy living easy, announces the launch of the Tribest Backspin™— the world’s first Contra-Rotating Impact Blender. · ...

We interviewed the core team at Norway's World Wide Wind to learn more about its floating, tilting, contra-rotating, double turbine design, which it says can unlock unprecedented scale, power and ...

London-based manufacturerPoduhvat has developed a wind turbine which they claim can produce five times more energy than traditional wind turbines with the same rotor size. The contra-rotating Whetar ...

At the very crux of engineering is the desire to problem-solve, optimize, and squeeze out every bit of efficiency possible from the system being built. Aircraft design and aeronautical engineering ...

Serious engineering work on contra-rotating open rotors for aircraft propulsion dates back to the late 1940s, particularly as a means to enhance fuel efficiency and extend the endurance of long-range ...

New features for the industry-standard resistance and propulsion software, HydroComp's NavCad. Many contemporary marine vehicles are being outfitted with contra-rotating propellers (CRP), and naval ...

MESSRS. ROTOL AIRSCREWS, LTD., have now completed the development, to the production stage, of a constant speed contra–rotating airscrew, the principle of which was mentioned in NATURE of May 17, 1941 ...