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But even though implementation of RLat is expected to add capacity and provide considerable improvements to efficiency, a further reduction in separation will be achieved through space-based Automatic Dependent Surveillance – Broadcast (ADS-B), which the Aireon project will bring in 2018.
A joint venture among Iridium Communications, NAV CANADA and European ANSPs – Navair, Enav and IAA in Ireland – Aireon has long been billed as a way for airlines to save billions of dollars in fuel costs because it will facilitate more direct air routes and optimal climbs, as well as allow for aircraft to be spaced closer together. Indeed, Aireon “will bring 15 nautical mile separation” over the North Atlantic, notes NAV CANADA’s Singer.