What system transmits flight plan messages between ATS units?

What system transmits flight plan messages between ATS units?

• A. AFTN
• B. ACARS
• C. ADS-C
• D. SWIM

Answer: (A)

The main system is the Aeronautical Fixed Telecommunication Network. This fixed network is designed to carry ATS messages, including flight plans, between Air Traffic Services units worldwide. It provides standardized addressing and routing so a flight plan filed from one region can be delivered to the appropriate ATS unit in another region, ensuring the information reaches the correct destination in a timely and reliable way. ACARS is a data-link system primarily between aircraft and ground stations, not the global mechanism for routing flight plans between ATS units. ADS-C relates to contract-based surveillance data, and SWIM is a broad information-management framework for sharing aviation data rather than a message-transfer system between ATS units.

The main system is the Aeronautical Fixed Telecommunication Network. This fixed network is designed to carry ATS messages, including flight plans, between Air Traffic Services units worldwide. It provides standardized addressing and routing so a flight plan filed from one region can be delivered to the appropriate ATS unit in another region, ensuring the information reaches the correct destination in a timely and reliable way.

ACARS is a data-link system primarily between aircraft and ground stations, not the global mechanism for routing flight plans between ATS units. ADS-C relates to contract-based surveillance data, and SWIM is a broad information-management framework for sharing aviation data rather than a message-transfer system between ATS units.