As the number of flights increased, Trans-Atlantic Air Control (TAC) was relocated in November 1941 to Redbrae House, a mock Tudor home located near Prestwick Airport.

[4] A large United States military presence was established at Prestwick to support the ferry flights from North America.

[5] After the war, responsibility for TAC came under the control of RAF Transport Command after the United States Army Air Forces (USAAF) presence dramatically reduced.

Around the same time, a civilian air traffic control service began to meet the demand from the expanding civil aviation market.

[4] In April 1977, the D&D cell and the Air Defence Notification Centre (North) (ADNC) moved into new premises at Atlantic House, followed by ScATCC (Mil) on 2 November 1978.

"[7] The main responsibilities of RAF Prestwick was to provide air traffic control (ATC) services to military aircraft carrying out the following activities.

The cell maintained a continuous listening watch on both guard frequencies, 121.5 MHz for civilian aircraft and 243.0 MHz for military aircraft and was responsible for co-ordinating responses within UK airspace north of Newcastle and contacting the Aeronautical Rescue Co-ordination Centre (ARCC), which at the time was based at RAF Kinloss in Moray.