53 OTU RAF was an Operational Training Unit of the Royal Air Force.

It was formed at RAF Heston in February 1941 to train Spitfire pilots for Fighter Command.

Pilots trained initially on Miles Master aircraft and later on Spitfires.

Had a German invasion of England taken place, 53 OTU RAF would have become No's 553 and 554 Squadron, operating from RAF Church Fenton.

[1] When WW2 ended in Europe, No 53 OTU was disbanded at Kirton-in-Lindsey on 15 May 1945.