527 Squadron RAF was a radar calibration unit of the Royal Air Force between 1943 and 1958.

The squadron was engaged with the calibration of radar stations in southern England and East Anglia.

The squadron standardised hereafter on Spitfires, Wellingtons, Oxfords and Dominies, the latter -old aircraft of 526 Squadron- still being based at RAF Longman, Inverness for communications flying.

In November 1945, the squadron moved to RAF Watton, Norfolk where it disbanded on 15 April 1946.

[4][7] A great variety of types, amongst them Avro Lincolns, Avro Ansons, English Electric Canberras and Gloster Meteors, were flown for high-level calibration[7] until 21 August 1958, when the unit was disbanded by being renumbered to No.