My wife was an F/A with Britannia on them (as well as the 737s) in 1971/72. She flew North Atlantic charters on G-AYSI and G-AYEX to Montego Bay, Los Angeles and Vancouver. She was also based in Kuala Lumpur and Bahrain for a period of 3.5 weeks in connection with Hadj flights. She also remembers a Luton-Stansted-Karachi, returning the next day Karachi-Luton in July 1971. Not long after we met, I flew a night time Manchester-Athens-Manchester rotation with her on 27-28 October 1972 on G-AYSI with Captain Jeziorski.