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黑匣子(Block Box)是飞行事故记录器的俗称,包括舱音记录器(CVR)和飞行数据记录器(FDR)两部分。前者用于记录人员话音和舱内音响,后者用于记录飞行高度、速度、方向等飞行参数。它用于记录事故发生前30分钟或数小时甚至更长时间内的飞行状态,以及飞机和飞行员的有关信息,为查明事故提供原始数据。这些数据按照“先进先出”的原则动态更新。黑匣子对事故调查至关重要,因此世界各国几乎所有的商用和军用飞机都装有黑匣子。最早的事故记录器产生于20世纪50年代末,“黑匣子”的称谓来源于其黑色的外壳。虽然为便于事故之后的搜寻,黑匣子外
Block Box is a common name of flight accident recorder, including CVR and FDR. The former is used to record personnel voice and cabin sound, which is used to record the flight altitude, speed, direction and other flight parameters. It is used to record the state of flight 30 minutes or hours or more before the accident, as well as information about the aircraft and pilots to provide raw data for the purpose of identifying an accident. The data in accordance with the “first in, first out” principle dynamically updated. Black boxes are vital to accident investigations, so almost all commercial and military aircraft in countries around the world are equipped with black boxes. The earliest accident recorder was produced in the late 1950s, “black box” title comes from its black shell. Although to facilitate the search after the accident, outside the black box