That image reminds me of my aircraft spotting days in 1960s. Spent hours at London Airport, as Heathrow was known then. I lived in Slough and then Langley and it was a trip on the no 81 LT bus, a red RT, away or, when I had a decent bike, a cycle ride.
Sitting in the Queen’s Building with my sandwiches, a telescope and an air band radio was a great way of passing the time at weekends.
steve