As part of an ongoing modernisation of UK air traffic control services, the new air traffic control centre (ATCC) at Prestwick in Ayrshire, Scotland, UK, has entered full operational service.
National Air Traffic Services oversees the operation of the £180m centre which is expected to control nearly half of UK flights.
The UK's only other ATCC is at Swanwick in Hampshire.
According to reports, the new centre will replace the 30-year-old adjacent building and will also take control of Manchester ATCC.
The new facility will control nearly one million flights a year, which is 42% of the 2.2 million using UK airspace under air traffic control, and up from one third previously.
The scheme was put on hold for two years after the 11 September terrorist attacks in the US in 2001.
The RAF air traffic control centre, which is responsible for military aircraft flying over Scotland and northern England as well as all aircraft emergencies, is also housed in the new building.
The centre will be officially opened on 5 February.