As prisoner No. 710 Langford was involved in the planning and excavation of the tunnel code-named "Harry" which was located under the barrack's stove in Room 23 of Block 104. He was the "trapfuehrer" responsible to ensure that the red hot stove on its tiled piece of removable flooring was back in place over the tunnel whenever the guards were nearby. He mastered his technique to a point that he could close the trap door above the tunnellers cushioned with blankets to kill any hollow sound, and get the stove in place with carefully replaced dust and dirt within 20 seconds of a guard approaching. Langford saved the tunnel from discovery on several occasions. The tunnel was completed in early March 1944 measuring 106.07 m (348 ft) in length and the date for the break-out was set for 24 March. Approximately 600 airmen had worked on various aspects of the tunnel's construction. A list of 220 people was compiled for the actual escape but only 76 managed to get through the tunnel before it was discovered by the German guards. He was one of the 76 men who escaped the prison camp on the night of 24–25 March 1944 in the escape now famous as "
the Great Escape". Having got clear of the camp Langford was in a party of officers who fought their way through the snow and bitter cold walking as fast as they could, they kept pushing onwards despite the weather and survived freezing nights outdoors only to be recaptured on 28 March 1944. He was in the party with
Ian Cross,
Jack Grisman,
Sandy Gunn and Tom Leigh held at
Görlitz Civil Prison, where on the morning of 31 March 1944 Keith Ogilvie saw
Edgar Humphreys, Dutchy Swain,
Chaz Hall,
Brian Evans, Wally Valenta, George McGill, Pat Langford, "Adam"
Wlodzimierz Kolanowski, Bob Stewart and "Hank"
Henry Birkland being led away to a covered truck, They were all shot in a clearing off the Görlitz to
Sagan road just outside Görlitz and cremated at Liegnitz by the
Gestapo. Langford was one of the 50 escapers
executed and murdered by the
Gestapo. Originally his remains were buried at Sagan, he is now buried in part of the Poznan Old Garrison Cemetery. he is also commemorated by the
Royal Canadian Air Force. His name was amongst those in the list of the murdered prisoners which was published when news broke on or about 19–20 May 1944. and he is also mentioned in the "Ottawa Citizen" on 27 February 1946. == Awards ==