For more than 40 years, the Aircraft Addressing and Reporting System (ACARS) has been the gold standard delivery system for relaying operational and safety critical information to and from aircraft at scale global. However, with the adoption of smart aircraft, significant amounts of data are created that was not originally considered when ACARS was created, which could lead to network congestion. New high-value data streams, such as aircraft and engine performance and health monitoring data, have grown over time and now represent up to 80% of the ACARS data volume in the industry. ‘a new generation aircraft. This significant increase threatens to exceed the capacity of the VHF and HF networks to meet capacity needs.

A new Collins Aerospace white paper titled “Understanding the Impact of Aircraft Information Data from New Generation Aircraft on the ACARS Network” examines the changing air communications landscape and how ACARS is adapting to emerging needs. data pipeline. This change has led to the rise of ACARS over IP (AoIP), a solution that is realigning the way messages are sent between aircraft and ground crews.

“ACARS over IP and broadband connectivity provide an opportunity for aircraft and engine data to be moved away from traditional ACARS VHF, HF and SATCOM security connectivity,” states the introduction of the white paper. “This will help preserve the limited bandwidth of traditional networks so that they can continue to provide highly reliable communication services for airline operational and critical information. “

This approach accommodates the influx of valuable data without compromising the availability of critical data for flight while an aircraft is in flight. By expanding data availability, more data can be used in the aviation ecosystem, helping to fuel continuous innovation in the industry.

“Since AoIP uses broadband IP communications, which have a much higher effective throughput than VHF and HF, this is a highly scalable long-term solution. As an added benefit, SATCOM cellular and IP throughput is so much higher that airlines can also use it to enhance other parts of their operations, including Electronic Flight Bag (EFB) applications.

Download the full white paper here and watch a video overview of the technology in action below:

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