Entaxei. The two original commentators were Stan Little and Flo Kingdon. Flo died not too long ago in her 80s but Stan died way back. I last saw Flo in the Approach Room on the 6th floor of Heathrow Tower back in the 80s. Unfortunately I was busy and she was with visitors so I never had time to speak to her. Elizabeth (if that was her name), came on the scene a little later. She is still about and an ex-colleague of mine from Heathrow ATC sees her occasionally. A few years ago I found Flo's home phone number and had a chat with her. She remembered me from those far off days. Later I sent Flo a copy of the book Heathrow ATC - the first 50 years but received no reply so maybe she was ill.
Great music too - gave a me a life long love of Mantovani and Glenn Miller! On rare occasions I used to telephone them for the reg of something rare. Stan was a keen spotter but Flo wasn't, although she was always very helpful.
Happy times, never to be forgotten.