which remains the U.S. Army standard and features composite rotor blades, an improved electrical system, modularized hydraulics, triple cargo hooks, avionics and communication improvements ...

But thanks to a doctoral thesis he found, it’s also possible to control a traditional single-rotor helicopter by substituting flexible rotor hinges and precise motor speed control for the ...

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 ...

Helicopters have a hard time flying very fast because their rotor blades have to cope with a phenomenon called “retreating blade stall.” When a helicopter is moving forward, there is no ...

Obviously there are a great many differences between attack helicopters and fighter jets ... That's thanks to its coaxial contra-rotating main rotors powered by two Klimov VK-2500 turboshaft ...

The Helicopter Department of the German Aerospace Center (Deutsches Zentrum für Luft- und Raumfahrt; DLR) DLR-Institute of Flight Systems in Braunschweig is home to the Rotor Test Stand, also known as ...

Sikorsky on Monday detailed recent successful demonstrations with its “rotor blown wing” unmanned aircraft system (UAS), flying its prototype in both helicopter and “winged aircraft” mode ...

Lockheed Martin’s Sikorsky has proven the capability of a “rotor blown wing” unmanned aircraft system that can fly like a helicopter or an airplane, the company announced Monday. The drone ...

As the Gamera team reviewed every aspect of their own design, they decided to build a whole new helicopter, with better transmission, more efficient rotors, and a lighter structure. They also ...