Built near to Castletown in Caithness, Scotland the station opened in 1940 and closed in 1945.

[2] There were no RAF stations nearby and the Air Ministry took immediate steps to remedy this by requisitioning Wick Airport which became RAF Wick and by the end of September 1939 Blackburn Skua aircraft of 803 Squadron FAA were patrolling over Scapa.

On 7 June 1940, Castletown ceased to be a satellite of Wick and became an operational station of 13 Group.

[7] After the Battle of Britain, the threat of invasion receded but attacks on Scapa continued.

[citation needed] Ground defence of the station was initially provided by army units but from 1942 onwards No.