The Single European Sky ATM Research Deployment Manager (SESAR DM) and the European Space Agency (ESA) signed a memorandum of cooperation July 19, marking the start of a formal collaboration on a new satellite-based communications capability for aviation.A “special focus” of the agreement the parties signed in Brussels will be the use of Inmarsat satellites and new Iris data link to support controller-pilot data link communications and 4D trajectory management. Based on Inmarsat’s SwiftBroadband-Safety (SB-S) service platform, the internet protocol-based Iris data link is expected to relieve congestion of ground-based VHF radio frequencies.Application of 4D trajectories adds a time element to the dimensions of latitude, longitude and altitude, enabling precise flight tracking and more efficient, “trajectory-based” traffic management. The capability is seen as a key enabler of the Single European Sky air traffic management (ATM) vision being rolled out by the Sesar DM.
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