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 ...

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 ...

The coaxial rotor design is so efficient NASA chose it for its Mars Helicopter "ingenuity," which had to fly in an atmosphere that is only 1/100th as dense as Earth’s. Auto-piloted electric ...

January 21, 2005 The AirScooter II is an ultralight helicopter designed for easy control and manoeuvrability that looks set to take personal recreational airborne vehicles to new heights. Designed ...

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.

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 ...

Two aircraft are competing to be the Army’s next Black-Hawk-type helicopter. ... Sikorsky’s work on coaxial helicopters dates back to a first flight in 2008.

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 ...

The coaxial design improves helicopter stability and allows it to travel faster than conventional designs. The Raider is likely to be the most mature design in the competition, ...

Engine Rotax 914 UL (115 hp) Empty weight 260 kg. Take-off weight 495. Maximum flight speed at ground level 250, cruising - 200. Service ceiling - 3000 m., Maximum range - 700 km, fuel consumption ...