Thorney Island
No idea why it closed, too many runways nationwide, too few aircraft I suspect, it was handed over to the brown jobs.
It was No 2ANS equipped with Varsity in the middle 50s. My brother was a staff pilot there, Staff Pilot on a Nav school was about the last option in a flying career as you got nearer to failing the medical.
My only visit was in 1952, as a midway stop on a training flight from Bishops Court. We were allowed a weekend stop, I caught a Bus on the Perimeter track to Emsworth Station, and was home in Brighton 3 hours from leaving base. A flight via BEA in those days was to expensive to consider, and including travel to Aldegrove and back from Heathrow would have taken all day.