Royal Air Force Buchan or more simply RAF Buchan is a former Royal Air Force station near Peterhead in Aberdeenshire, Scotland. Buchan opened in 1952 as a radar centre in the ROTOR radar network. It was soon upgraded with the installation of the powerful AMES Type 80 radar, and became a Master Radar Station, directing most air defence activities directly from its radar displays. During the upgrades to the Linesman/Mediator network it was planned to close, but its location and support for air traffic control kept it operational with its Type 80 through this era.