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Aircraft are designed to avoid the following aeroelastic problems: divergence where the aerodynamic forces increase the twist of a wing which further increases forces; control reversal where control activation produces an opposite aerodynamic moment that reduces, or in extreme cases reverses, the control effectiveness; and
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 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.
These environments include, but are not limited to: science platform aircraft and aircraft-deployable systems; space vehicles, space stations, habitats and lunar and planetary surface construction bases; and Earth-based control, experiment, launch, logistics, payload, simulation and test facilities. Earth analogs to space applications may ...
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
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.
On aircraft with swept wings, wing tip stall also produces an undesirable nose-up pitching moment which hampers recovery from the stall. Washout may be accomplished by other means e.g. modified aerofoil section, vortex generators, leading edge wing fences, notches, or stall strips. This is referred to as aerodynamic washout.
Continuing airworthiness management organisation (CAMO) is a civil aviation organization authorized to schedule and control continuing airworthiness activities on aircraft and their parts [1] The scope of the CAMO is to organise and manage all documents and publications for Maintenance Organizations Part 145 and Part M approved, like ...