Ver precise HEATHROW DIRECTOR
Very precise posting HEATHROW DIRECTOR!
The old photos of the low vis "departure" from "23C" were rather disturbing. It took hours to cut the Captain out of his seat, but he was OK (thankfully).
Would I be right in saying that the hatched area between the outer and inner taxyways was this infamous 23C (it was never an actual runway). I presume the reason it was hatched (and not even used for taxying) was to stop a recurrence.
The approach to 23R was very interesting as the threshold was just beyond the tunnel entrance.