I used to fly on a Caravelle regularly between 1977 and 1978 from Heathrow to Luxembourg with Luxair. I remember it being quite quiet inside. The cabin crew complained that they did not have any control of the temperature in the passenger cabin and were always asking the flight crew to turn it up or down. Correct me if I am wrong but I think it was the first of the tail mounted jets. I remember the 1967 Caravelle flight belonging to Iberia that crashed while going into Heathrow. The bodies were all buried at Brookwood cemetery.