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Aeroelastic tailoring is defined as "the embodiment of directional stiffness into an aircraft structural design to control aeroelastic deformation, static or dynamic, in such a fashion as to affect the aerodynamic and structural performance of that aircraft in a beneficial way", [1] or "passive aeroelastic control". [2]
Aircraft are prone to aeroelastic effects because they need to be lightweight while enduring large aerodynamic loads. Aircraft are designed to avoid the following aeroelastic problems: divergence where the aerodynamic forces increase the twist of a wing which further increases forces;
The X-53 Active Aeroelastic Wing (AAW) development program is a completed American research project that was undertaken jointly by the Air Force Research Laboratory (AFRL), Boeing Phantom Works and NASA's Dryden Flight Research Center, where the technology was flight tested on a modified McDonnell Douglas F/A-18 Hornet.
Improper maintenance: undetected metal fatigue: 34 Starboard wing failed outboard of engine 1977-05-14 1977 Dan-Air Boeing 707 crash: Near Lusaka Airport, Lusaka, Zambia Boeing 707: Metal fatigue and aircraft design flaw 6 Structural failure of the right horizontal stabiliser due to metal fatigue and aircraft design flaw 1978-06-26
An integrated onboard maintenance system actively monitors the health of the overall aircraft and various subsystems at all times. [61] The hold of the C-390 has a length of 18.5 m (61 ft), width of 3.45 m (11.3 ft), and height of 2.95 m (9 ft 8 in), and is primarily accessed via a large rear ramp built into the tail.
Aircraft maintenance is the performance of tasks required to ensure the continuing airworthiness of an aircraft or aircraft part, including overhaul, inspection, replacement, defect rectification, and the embodiment of modifications, compliance with airworthiness directives and repair.
X-53 Active Aeroelastic Wing in flight. Several technology research and development efforts exist to integrate the functions of aircraft flight control systems such as ailerons, elevators, elevons and flaps into wings to perform the aerodynamic purpose with the advantages of less: mass, cost, drag, inertia (for faster, stronger control response), complexity (mechanically simpler, fewer moving ...
Aircraft designed by the Messerschmitt ... (mechanically simpler, fewer moving parts or surfaces, less maintenance), ... The X-53 Active Aeroelastic Wing is a NASA ...
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