I do remember that Brian. Of course without relying on the information from the TANS computer there could be no Boeing simulation.
I also remember Sir John producing a diagram of the exact cloud formation over the Mull that day. He had it extending over the sea. This was in complete disregard of the evidence of the only witness "at sea" that day, Mr Holbrook.
Yet another work of fiction, presented as fact.
If I did that to a military enquiry, I would expect a long holiday in Colchester.