Emma Kelly/LONDON
The UK's National Air Traffic Services (NATS) launched controller-pilot datalink communications (CPDLC) trials across the North Atlantic earlier this month. The trial is the latest stage in a programme designed to test datalink communications in Shanwick oceanic airspace and follows the introduction of waypoint reporting in January and voiceless route clearances last month (Flight International, 13-19 February).
The three-month trial is intended to validate CPDLC use for future routine ground-air communications such as manoeuvres, step-climb requests, domestic frequency requests/allocations and the delivery of emergency messages, and is intended to "build up experience of how we can best use CPDLC", says NATS. CPDLC is being evaluated as an alternative to the presented heavily congested HF voice channels.
The first CPDLC contact by a European air traffic service provider on the North Atlantic was made in March with a Continental Airlines cargo flight - COA99 - from New York Newark. A free format text test was maintained for around 20min, says NATS.
Air Canada was due to join the programme earlier this month, and "many airlines have offered to help", including United Airlines. Other tests are planned using Boeing and Airbus ground systems. NATS is working on the project with Nav Canada and the Irish Aviation Authority.
NATS has won air traffic control (ATC) contracts from Hong Kong, Slovakia and Albania as part of the service provider's efforts to develop its business outside the UK. In Albania, it is working with Lockheed Martin in providing advice on air traffic operations, safety and maintenance. The Hong Kong contract involves the provision of training courses and undertaking an ATC capacity study, while in Slovakia NATS is auditing the safety management system.Source: Flight International
