Short finals is quite correct, the runways were completed in 1955. The picture (hopefully)attached show Avro XIX no 141 positioning to make the first take off from the completed runway on 12 February 1955 flown by Capt Henry Howard. It was not by the way, the first landing on the new runway.
To attempt to clarify CK's posting. In 1941 it was proposed to transfer all Air Corps personnel to other units due to shortage of aircraft and equipment. The British were concerned at this suggestion and agreed to supply Hawker Hectors and other stores to facilite the repair of aircraft awaiting spares.
All the airfields were staked, some with runway clearance but equipment at readiness to completely block the airfields as a quick reaction.
Tony K