A little more as a policeman in 1970 for the BAAC the tower at Northside was used by the Police vehicle removal unit but was bulldozed that year I am sure. I never had the pleasure of going into it. Forward to the LHR - JFK first Concorde flight you could actually drive unchecked from the southside peri road past the Air India Hangar and park up alongside the runway and watch the aircraft as 100's did on that day, which was please? Off the Northern Oeri were a couple of Brittania size hangars and I recall 2 parked up Brits? in Northeast livery in 1970 and a cargo company Saggitair always coming in on full emergencys? Many hights were foggy and the the T5 sewage farm was all open to the public, it was often a very spookey place LHR, illegals living under T2 with cooking areas and beds and a civil defence room under the entry roadway.