ACARS – Aircraft Communications Addressing and Reporting System
ARINC communications and address reporting system (digital communications system used primarily for aircraft-to-airline messages)
In 1978 ARINC introduced ACARS (Aircraft Communications Addressing and Reporting System), which is a datalink system that enables ground stations (airports, aircraft maintenance bases, etc.) and commercial aircraft to communicate without voice, but data, due to the datalink system being integrated with aircraft systems via a Communications Management Unit (CMU), such as fuel quantity, weight on wheels, FMS, etc. Weather, gate assignments, security advisories and other information can be transmitted to and from the flight deck without using voice thus reducing the pilot workload and allowing them to focus on managing other portions of flight.
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