The black box is the equipment installed on the aircraft and used for aviation accident investigation, maintenance and flight test. The installation location is on the tail that is most often completely preserved during the air crash. In 1953, the world's first flight recorder was invented by Dr. David Warren of the Australian Research Laboratory. R&D history
In p>1956, Warren and his colleagues experimented with the prototype of a "black box" that could hold voice and flight data for four hours, but it was rejected by the Australian aviation industry. The Royal Australian Air Force believes that "this kind of equipment is not very useful and does not help to explain the cause of the accident". Warren had to seek support from overseas. In 1958, a British aviation official saw Warren's invention and agreed to fund Warren to produce "black boxes" in Britain. Subsequently, Warren led the team to develop a new black box model. They put the flight recorder in a shockproof and fireproof box and began to sell it all over the world.
after an air crash in Queensland, Australia in p>196, Australia became the first country in the world to make it mandatory to install black boxes on all civil and military aircraft. In the next half century, black boxes have been widely used in the global aviation industry and become the standard equipment on all civil aviation and most military aircraft in the world.
Warren didn't apply for a patent for the black box, and the Australian government didn't provide him with a special bonus, but he was awarded the Australian Medal in 22 in recognition of his contribution to the aviation industry. Warren once said half jokingly that many inventions actually failed when he worked for the Royal Australian Air Force, as long as the Australian Ministry of Defence didn't ask him for money. Function
accident/air crash investigation: information such as flight speed, altitude, pitch, heading, vertical overload, roll, deflection angle of control surface, resistance, lift and engine power recorded by the flight recorder. When an air crash occurs, the information recorded by the flight recorder can be sent to the flight simulator after processing, so as to reproduce the process of the crash and simulate and analyze the factors before the crash.
maintenance reference: the recorded data can provide important reference information for inspection and maintenance.
analysis of flight test records: except for a part of the data generated in flight test sent back to the ground by remote control antenna device, most of them are recorded by flight recorder for further analysis and research.