Sikorsky Develops the X2, a Technology Demonstrator for Next-Generation Helicopter Equipment and Controls

July 7, 2009
Sikorsky develops the X2, a technology demonstrator for next-generation helicopter equipment and controls.

Aerospace engineers at Sikorsky Aircraft Co., Stratford, Conn. (www.sikorsky.com), have been developing and testing the X2, a demonstrator aircraft that showcases new helicopter technologies. If all goes as planned, the advances should let tomorrow’s vertical-lift aircraft hover efficiently and still cruise at more than 250 knots, a world record for a helicopter. (The Westland Lynx set a record of 217 knots that has stood for 22 years.)

To simplify hardware but keep the most advanced controls, the two-seat X2 uses fly-by-wire controls that translate pilot inputs into signals for the rotor rpm, the high lift-to-drag blades, low-drag hub fairings, and an active vibration-control system. The craft is powered by a 1,362-shp CTS8000 turbine, a turboshaft engine developed jointly by Rolls-Royce and Honeywell. The engine turns two counterrotating sets of props, which means the tail rotor is no longer needed to counter torque inherent in a single set of rotors. So the “pusher prop” is now used to generate extra thrust.

Edited by Stephen J. Mraz

Sponsored Recommendations

The entire spectrum of drive technology

June 5, 2024
Read exciting stories about all aspects of maxon drive technology in our magazine.

MONITORING RELAYS — TYPES AND APPLICATIONS

May 15, 2024
Production equipment is expensive and needs to be protected against input abnormalities such as voltage, current, frequency, and phase to stay online and in operation for the ...

Solenoid Valve Mechanics: Understanding Force Balance Equations

May 13, 2024
When evaluating a solenoid valve for a particular application, it is important to ensure that the valve can both remain in state and transition between its de-energized and fully...

Solenoid Valve Basics: What They Are, What They Do, and How They Work

May 13, 2024
A solenoid valve is an electromechanical device used to control the flow of a liquid or gas. It is comprised of two features: a solenoid and a valve. The solenoid is an electric...

Voice your opinion!

To join the conversation, and become an exclusive member of Machine Design, create an account today!