Aircraft Communications Addressing And Reporting System
The Aircraft Communications Addressing and Reporting System (ACARS) is a digital data link system for the transmission of short, relatively simple messages between aircraft and ground stations via radio or satellite. The system was introduced in the 1970s and is still widely used today. ACARS serves as a replacement for voice communications in many cases, providing a direct link between the aircraft and various ground services such as operational control centers and maintenance bases. It allows for the automatic reporting of on-board data such as fuel consumption, engine performance, and aircraft position. ACARS messages can be initiated by the flight crew, by on-board sensors, or by ground stations. The system is also capable of delivering messages to the aircraft, such as weather updates or changes in flight plans. ACARS is an essential component of modern air traffic management systems, contributing to increased efficiency and safety in air travel.
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