Apparently, the technology
assuming that planes can’t just “drop off the radar” like #Malaysia Airlines
Flight 370 does exist. However, the airlines decided it was too expensive for
them. Media reports confirm that technology needed to stream crucial flight
data to the ground legally exists on the market, but its price is $100,000.
The matter is that commercial
airliners do actually transmit some data. Radio transponders identify them
while scanning by radar and most of them are fitted with an Aircraft
Communications Addressing and Reporting System (ACARS). The latter periodically
relays text-message like snippets of data about the aircraft’s status. Those
transponders seem to have stopped transmitting data about Flight #MH370, and the
airline refused to provide any comments about #ACARS signals while the incident
is being investigated.
According to the computer
scientist #Krishna Kavi, this data can be streamed to cloud storage, in a system
called the "glass box". However, transmitting information via
satellites is not cheap, especially and if such a system operates continuously.
Apparently, it would cost billions to implement flight data streaming across
the airline industry. However, most of the information is based on the maker of
the existing black box technology L-3. The latter spun a false premise that all
flight information would need to be streamed, all of the time. According to a
safety and insurance director of an aviation consultancy, systems could be
designed to be triggered by unusual flight events, and only after this start
streaming flight information. These devices already exist on the market, fitted
to about 350 aircrafts run by 40 operators and they transmit information
helping airlines plan maintenance and minimize fuel consumption.
The company producing the system
revealed that it transmits information via #Iridium satellites and can be
programmed to start streaming flight data after a plane deviated from its
flight plan, or there are suspicions something is going wrong. In case an
aircraft is blown out of the sky by a bomb, or if it suffers a sudden
catastrophic structural failure at cruising altitude, such devices won’t be
much help. However, in those rare cases, conventional black boxes are viable
technology.
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