As connected aircraft operations improve efficiencies and reduce costs, the
airline industry is expected to see annual savings of around $15 billion. At the
same time, these new generation aircraft generate up to four times the amount of
Aircraft Communications Addressing and Reporting System (ACARS) data than their
predecessors – leading to cost and congestion increases that reduce the overall
operational gain. In response, airlines are now looking for new ways to improve
throughput and reduce these costs by sending particular messages over different
ACARS over IP (AoIP) is the newest option for these communications. AoIP
harnesses the advantages of ACARS while also utilizing the growing availability
and decreasing cost of broadband cellular connectivity on the ground, and IP
capable SATCOM connectivity when airborne.
The specific mechanisms vary by aircraft and the type of system used but, in
general, standard ACARS 618 messages are encapsulated in IP messages between the
aircraft and ground-based message handlers for processing.
Because AoIP uses broadband IP communications, which have a much higher
effective throughput than VHF and HF, it is a highly scalable long-term
solution. As an additional benefit, cellular and IP capable SATCOM throughput is
so much higher, airlines can also use it to improve other parts of their
operations including Electronic Flight Bag (EFB) applications and automated
Flight Operational Quality Assurance (FOQA) data acquisition.
AoIP provides the ability to offload the growing volume
of Airline Operations Communications (AOC) ACARS information from VHF, HF, and narrow band safety services
SATCOM to broadband connectivity. Engine and aircraft ACARS data has grown 25%
to almost 75% between new and older generation aircraft. Sending this data over
ACARS over IP will help alleviate network congestion and manage cost efficiencies. Dispatch critical or Air Traffic Service (ATS) ACARS will continue
to be sent over VHF and narrow band safety services SATCOM.
For more information on how we can help your airline today, contact us at