The blade tip speed limit of a propeller plane's propeller can determine the plane's top speed for reasons relating to design, engineering, and physics.

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 ...

In 1989, General Electric's GE36 became the first demonstrator engine featuring two contra-rotating rotors, integrated into a research aircraft and tested in flight. However, projects like this were ...

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 ...

Under the agreement, Contra-Rotating Propeller (CRP) systems developed by IHIMU will be incorporated into Wärtsilä's propulsion solutions used on board diesel-electric driven ships.

This, along with the contra-rotating propellers, helps the DF300B achieve quick acceleration and higher fuel efficiency at cruising speeds, as well as at the top of the rpm range. The two-gear ...