Kit helicopter manufacturer RotorX has stepped into the personal eVTOL fray with its own take on the manned multicopter. The Dragon promises to zip you around at up to 63 mph (101 km/h), with ...

At the heart of X2 is a coaxial rotor system. Most helicopters have rotating airfoil shaped blades on top of the fuselage. When these blades turn, air flows more quickly over the tops than it does ...

AVIATION: COAXIAL ROTOR HELICOPTER INNOVATORS: X2 Technology Development Team (seven of the 16 members of the team are pictured above); Sikorsky Aircraft BRILLIANT IDEA: A coaxial, or stacked ...

Lockheed Martin Corp.'s Sikorsky unit is out out with a new video touting its concept for a coaxial attack helicopter for the U.S. Army. The three-and-a-half-minute animated video was released ...

TYSONS CORNER, VA, August 10, 2018 ” Lockheed Martin™s (NYSE: LMT) Sikorsky subsidiary has registered with the Federal Aviation Administration a proposed coaxial helicopter that it is ...

On the X2, coaxial blades are stacked one on top of the other, and they turn in opposite directions. That allows one blade to compensate for the other when the helicopter approaches high speeds.