Coming back from Rio on a business trip and flying on a Varig or Vasp DC10-30 arriving at LHR around 1130. Rang the wife in MAN saying I was OK and back in country to be told that MAN was closed and all flights canx. Still I boarded a BA B757 and off we flew to MAN. Arrived about 40 minutes later in foggy weather and on disembarking the a/c was handed a CAT111 tie for one of the first B757 cat111 landings in November 1984. I must admit I did just see the runway as the wheels touched. Being an avionics engineer, this was my very first Cat111 landing in anger so to speak, and I was very impressed with the smoothness of the aircarft. I had been on the flight deck of L1011, DC10-30 and A300-B4 aircaraft when cat111 landings had been carried out, but as stated earlier, this was the first in anger. I have only ever, to my knowledge been on a single other which was a LH CRJ200 coming back into MAN and carried out a Cat111 landing.