Helicopter maker Bell will propose a purpose-built instrument flight rules (IFR) 505 Jet Ranger X as a potential replacement ...

Sikorsky said the aircraft also performed 30 transitions between helicopter and airplane modes ... The company was competing for the program with a coaxial rotor blade aircraft called Raider X. The ...

Sikorsky on Monday detailed recent successful demonstrations with its “rotor blown wing” unmanned aircraft system (UAS), ...

Following is a transcript of the video. This helicopter has dual-crossing rotors for increased precision The K-MAX uses a unique double rotor system where the two rotors cross each other.

Lockheed Martin subsidiary Sikorsky has successfully flown an electric-powered, 115-lb (52-kg) autonomous drone that uses what it calls a "rotor blown wing" to fly like both a helicopter and an ...

The video said a major aerodynamic challenge was transitioning the aircraft from helicopter to wing-borne flight, requiring new control laws for the maneuver. The downwash from the rotors blows ...

Sikorsky said the aircraft also performed 30 transitions between helicopter and airplane ... for the program with a coaxial rotor blade aircraft called Raider X. The company had, over a year ...