www.britanniaairways.com
Under more categories, anorak archive you can find out all about Britannia Airways' 757, 767 and 737 fleets.
If its any help they arent interested if you can recite the serial numbers of the engines on the fleet, they may already know how many aircraft there are and if they don't they dont care. Britannia interviewers are interested in you as a person and will spend the 40mins of your interview asking about
you rather than getting you to bore them to death with your technical knowledge.
Never got to talk to the psychologist but I understand that she uses the personality profile you filled in to ask you questions about your life. Be nice and tell the truth.
Turn around times are usually less than 2 weeks from interview to finding out success/not success
Good Luck