Interestingly, the plane uses contra-rotating propellers ... and potentially the fastest, exclusively propeller-driven ...

dating back over a century in aircraft and over four decades in maritime vessels. Volvo Penta is credited with patenting the first nautical contra-rotating propeller application in 1982 with the ...

The D-Dalus vehicle uses four contra-rotating turbines for propulsion, each reaching 2,200 rpm. Each turbine blade has a variable angle of attack, which according to the designer allows the main ...

The 19-m (62-ft), 30-kW, contra-rotating vertical-axis turbine is a prototype of a design that could scale to unprecedented size and power. Most wind turbines look like a propeller on a stick ...

This consisted of two rings of short propeller-like blades mounted in ... plane called the AN-70 with four forward-facing contra-rotating propfans under its wing, although only two prototypes ...

The the new CX propeller, now available for pre-order, has two sets of blades that go in opposite directions. Other contra-rotating propellers both for marine and aeronautics applications exist ...

A propeller, such as used on a piston-powered private airplane or a turboprop regional airliner, spins its blades to generate thrust. The original aircraft ... fuselage to the rotating machinery.

The United States Army's (US Army) Future Attack Reconnaissance Aircraft (FARA ... Most striking of all is the double-helix, contra-rotating main rotor assembly, something that no American ...

7, 2023, when she accidentally walked into the rotating propeller of a parked MQ-9A Reaper drone while performing a ground test on the aircraft, according to a final accident investigation report.