Sikorsky, a Lockheed Martin company has successfully validated the advanced control laws to successfully fly a ‘rotor blown ...

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.

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 ...

Service: Army National Guard Crew: 2 pilots Capacity: 8 troops or 2 stretchers and medical crew Propulsion: 2x Turbomeca Arriel 1E2 turboshafts Maximum speed: 167 mph Range: 426 mi The UH-72A is a ...

The helicopter, which weighs just 4 pounds (1.8 kilograms), was built by engineers at NASA's Jet Propulsion Laboratory in California and has a set of rotors stacked top of each other. It is ...