11) At what airfied were the first BA crew base training details held?
No idea.
Was it Brize Norton, or Casablanca?
The first two sets of BA crews did their circuit flying at Fairford, and the crews after that went to all sorts of different airfields in the UK , France and Portugal
12) What LHR runways did Concorde use for landing and take-off? (Trick question, not as obvious as it might seem).
Now as far as take-off is concerned
27 left and right
09 right
Landing 27 L & R----- 09 L & R---- 23 and 05 [ but not in the later years]
Now I cannot remember if you could take off on 23