Above, Lockheed’s 10-ft.-span BFF UAV breaks up due to flutter during a flight to develop the active-suppression flight-control system to be flown in the 28-ft.-span X-56A.
A version of this article appears in the May 26 edition of Aviation Week & Space Technology. Pursuit of ever higher efficiency is pushing the art of aircraft design—from surveillance platforms to commercial airliners and high-speed vehicles—beyond traditional boundaries. And active control of flexible structures is emerging as a key to enabling future lightweight, low-drag configurations. Slender, high-aspect-ratio wings are essential for long-endurance unmanned aircraft and ...
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