62K I''m equally off thread - for which I apologise. I was due to fly from London Heathrow to Philadelphia at about the same time (1970)...I was looking forward to flying in a SVC10. Due to fog at LHR I found myself on a very early TWA 747 which left from T3 before the airbridges were installed. 9 abreast in tourist I recall - and the movie: "The Life of Mr Soames."
At JFK I transferred to an AA 707 100 which still wore the "old" livery. Coming back I remember a standard VC10 from JFK. The ultimate flying experience. Until I travelled Ascot class to Sydney in 1977....but that's another story...