The system described as providing two-way text communication between in-flight aircraft and ground facilities is known as

The system described as providing two-way text communication between in-flight aircraft and ground facilities is known as

• A. VDL (VHF Data Link)
• B. SATCOM
• C. IRIDIUM data link
• D. ACARS (Aircraft Communications Addressing and Reporting System)

Answer: (D)

ACARS, the Aircraft Communications Addressing and Reporting System, provides two-way text communication between in-flight aircraft and ground facilities. It enables the exchange of short operational messages—like flight plans, weather updates, dispatch information, and maintenance data—without relying on voice radio. These messages are carried over data-link networks such as VHF Data Link, HF data link, or satellite, but ACARS is the system that defines the two-way text messaging capability. The other options refer to transport methods used by ACARS, not the system itself.

ACARS, the Aircraft Communications Addressing and Reporting System, provides two-way text communication between in-flight aircraft and ground facilities. It enables the exchange of short operational messages—like flight plans, weather updates, dispatch information, and maintenance data—without relying on voice radio. These messages are carried over data-link networks such as VHF Data Link, HF data link, or satellite, but ACARS is the system that defines the two-way text messaging capability. The other options refer to transport methods used by ACARS, not the system itself.