Probably too late for tonight but, if it's not, delete "War Office" and insert "Air Ministry" and delete "Fokker" and insert "Focke" as in Focke Wolf 190.
Jack
PS Astonishing how this story has evolved over the years!
PPS A propos ACM Sir Christopher Foxley-Norris I seem to recall that our American friends were always fascinated by the blatant way in which ACM Sir Christopher Foxley always travelled with Lady Norris ....