October 28, 2008 Helicopters featuring coaxial rotor designs are not exactly new. The co-axial design of a pair of rotors mounted on the same mast and with the same axis of rotation, but turning in ...

Drones aren’t anything new—multi-rotor aircraft are becoming a bigger part of people’s lives every day. From the latest batch of up-and-coming urban air mobility companies to hobby applications, ...

FORT RUCKER, Ala. -- Before turbine engines took over the world of rotor-wing Aviation, a proof-of-concept system revolutionized helicopter flight with a radical new rotor design. The Lockheed CL-475 ...

A kind of helicopter design first envisioned by the Renaissance-era Italian polymath Leonardo Da Vinci could help develop quieter and stealthier modern drones, according to a new study. Drones produce ...

In recent months, General Motors, Porsche, Mercedes-Benz, and Hyundai have all submitted patents for improved rotor designs for electric motors in the quest to improve power and efficiency. BMW has ...