Precious Metal is a staple of the air racing community. The highly modified P-51’s striking yellow and polished paint job and its contra-rotating propellers are features that make it stand out ...

The new contra-rotating version Sharrow’s earlier propeller design (a finalist in the 2023 Innovation by Design awards) rotated the blades go in a single direction.

The Lockheed XFV Salmon was the less successful of the two designs, due mainly to the lack of a suitably powerful engine.

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 ...

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 ...

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 ...

Technology Aviation A Completely New Kind of Aircraft Propulsion System, Made of Rotating Cylinders No wings, no rotors, no jets By Rebecca Boyle Published Jun 22, 2011 7:58 PM EDT ...

News Published: 06 September 1941 Contra–rotating Airscrews Nature 148, 282 (1941) Cite this article ...