Lockheed Martin plans to begin flexible-wing control flights of the X-56A experimental unmanned aircraft after initial “stiff-wing” flights to validate the vehicle’s performance. The 28-ft.-span, 480-lb., twinjet-powered X-56A made its 14-min. first flight from NASA Dryden Flight Research Center at Edwards AFB, Calif., on July 26 (Aerospace DAILY, Aug. 2). The aircraft is designed to demonstrate active flutter-suppression and gust-load alleviation to enable longer, lighter, ...

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