Complex sentence: With Runway 04/22 extended to nearly 6000 feet, 1 September 1952 the airfield became home to 233 Operational Conversion Unit which flew de Havilland Vampires and Hawker Hunters until its closure on 13 July 1957.
Split into simpler sentences: With Runway 04/22 extended to nearly 6000 feet, 233 OCU moved in on 1 September 1952, initially with de Havilland Vampires. The airfield was home to 233 Operational Conversion Unit which flew Vampires and Hawker Hunters until its closure on 13 July 1957.