Jackbr
A nice video and thanks for finding it. The Flight Engineer I used to go to Tech College with, back in the early 1960s so some good memories.
In the 60's the cabin crew in BOAC only flew one type, so yes the lady could have only flown B707 and remember the girls had to leave in those days when they got married or reached the age of 35.This meant they sometimes only worked for the company for a few years
In the 70s I believe the cabin crew then flew both B707 and VC10 with the B747 being the elite fleet on it's own.Indeed prior to the introduction of the VC-10 the B707 was considered the elite fleet, and indeed the long range of the later B707 still allowed it hold that title even after the introduction of the B747
I can confirm that BOAC/BA did indeed fly to Paris as on 18/03/75 I operated a VC-10 {G-ASCE} London _ Paris - Nairobi returning on the same route two days later. Now I have to say I do not recall this route in the 60's however.