By George Bibel
ISBN-10: 0801886317
ISBN-13: 9780801886317
The black field is orange -- and there are literally of them. They apartment the cockpit voice recorder and the flight information recorder, tools important to aircraft crash analyses.But coincidence investigators can't depend upon the black packing containers by myself. starting with the 1931 Fokker F-10A crash that killed mythical soccer trainer Knute Rockne, this attention-grabbing e-book presents a behind-the-scenes examine airplane smash investigations. Professor George Bibel indicates how forensic specialists, scientists, and engineers research components like impression, particles, loading, hearth styles, metallurgy, fracture, crash checking out, and human tolerances to figure out why planes fall from the sky -- and the way the knowledge gleaned from twist of fate reconstruction is integrated into airplane layout and operation to maintain advertisement aviation as secure as attainable.
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Additional resources for Beyond the Black Box: The Forensics of Airplane Crashes
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The plane’s initial velocity and acceleration could be converted, by calculation, into speeds and distances for each increment of time. These cal- 32 Fig. 7. Landing distances for Flight 30H C OEFFICIENT OF F RICTION The frictional force from sliding friction is given by the force pressing the sliding object into the surface multiplied by a coefficient of friction. Fig. 8. Frictional force equals normal force times coefficient of friction. Because of mechanical brakes inside the wheels, the tires on an aircraft’s landing gear do not rotate freely.
To improve energy absorption, the goal is to design structures, particularly the seats, which will undergo controlled deformation and thereby reduce the G loads to a level that the human body can safely tolerate. This reduction in G load is accomplished by increasing the time and distance over which impact forces are dissipated. Rotation about the Plane’s Center of Gravity Unless the initial impact is at the center of gravity, the crash force will result in a displacement of the center of gravity and a rotation about the center of gravity.
Later mandated improvements required each of the two stall warning systems to take readings on both wings. In addition, a shaker stick was subsequently required on the copilot’s stick. System redundancy is a major design feature in modern transport aircraft. In the Chicago crash, however, multiple component failures overwhelmed system safety. Initial design analysis did indicate a problem if loss of engine thrust occurred simultaneously with an erroneous slat retraction, but the likelihood of this happening was considered remote.
Beyond the Black Box: The Forensics of Airplane Crashes by George Bibel
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