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F-18 AAW high-speed rolls over the Mojave Desert
|Formats||160x120 QuickTime Movie (1.4 MB)
320x240 QuickTime Movie (2.9 MB)
480x360 QuickTime Movie (4.4 MB)
640x480 QuickTime Movie (7.2 MB)
|Still photos of the F-18 Active Aeroelastic Wing are available in several resolutions at
This 40 sec movie clip shows the F-18 AAW doing high speed rolls over the Mojave Desert.
The Active Aeroelastic Wing program at NASA's Dryden Flight Research Center seeks to determine the advantages of twisting flexible wings for primary maneuvering roll control at transonic and supersonic speeds, with traditional control surfaces such as ailerons and leading-edge flaps used to aerodynamically induce the twist. From flight test and simulation data, the program is developing structural modeling techniques and tools to help design lighter, more flexible high aspect-ratio wings for future high-performance aircraft, which could translate to more economical operation or greater payload capability.
AAW flight tests began in November, 2002 with checkout and parameter-identification flights. Based on data obtained during 50 research flights over a five-month period, new flight control software is being developed. A second series of research flights will then evaluate the AAW concept in a real-world environment. The program uses wings that were modified to the flexibility of the original pre-production F-18 wing. Other modifications include a new actuator to operate the outboard leading edge flap over a greater range and rate, and a research flight control system to host the aeroelastic wing control laws.
The Active Aeroelastic Wing Program is jointly funded and managed by the Air Force Research Laboratory and NASA Dryden Flight Research Center, with Boeing's Phantom Works as prime contractor for wing modifications and flight control software development. The F/A-18A aircraft was provided by the Naval Aviation Systems Test Team and modified for its research role by NASA Dryden technicians.
|Keywords||Dryden; F-18 AAW; Active Aeroelastic Wing; F/A-18; NASA Dryden Flight Research Center|