Military Wiki
420 Combat Support Squadron
Role Composite
Aircraft Operated
Home Station CFB Shearwater
Motto "Pugnamus Finitum" ("We fight to the finish")
Date Founded 1941
Badge Argent a snowy owl wings elevated and adorsed proper
Notable Battle Honours English Channel and North Sea 1942-44, Baltic 1942, Fortress Europe 1942-44, France and Germany 1944-45, Biscay Ports 1942-44, Ruhr 1942-45, Berlin 1944, German Ports 1942-45, Normandy 1944, Rhine, Biscay 1942-43, Sicily 1943, Italy 1943, Salerno.

No. 420 "City of London" Squadron RCAF was a squadron of the Royal Canadian Air Force (RCAF) (and subsequently Canadian Forces) which existed from late December 1941 forwards. The Squadron's nickname was "Snowy Owl". Their motto was Pugnamus Finitum, Latin for We Fight To The Finish. No. 420 Squadron is no longer active.


No. 420 Squadron was formed at Waddington, Lincolnshire, England on 19 December 1941 as the RCAF's 18th (and fourth Bomber) squadron formed overseas. During the Second World War, the unit ultimately flew Manchester, Hampden, Wellington, Halifax, and Lancaster aircraft on strategic and tactical bombing operations. From June to October 1943 it flew tropicalized Wellington aircraft from North Africa in support of the invasions of Sicily and Italy. In April 1945 they converted to Lancasters, and when hostilities in Europe concluded, it was selected as part of Tiger Force slated for duty in the Pacific, and returned to Canada for reorganisation and training. The sudden end of the war in the Far East resulted in the Squadron being disbanded at Debert, Nova Scotia on 5 September 1945.

No. 420 Squadron reformed at London, Ontario on 15 September 1948, and flew Mustang aircraft in a fighter role until the squadron disbanded on 1 September 1956. Re-formed during the unification period, No. 420 was an air reserve squadron based at CFB Shearwater and flew the CP-121 Tracker (Shared with No. 880).

Aircraft flown by No. 420 Squadron

Operational (wartime) history

  • First Operational Mission: 21 January 1942: 5 Hampdens dispatched to bomb a target at Emden. two a/c bombed primary, two bombed alternative (town of Emden) and the other FTR. On same night another Hampden laid mines in Nectarines (Frisian Islands) area.
  • Last Operational Mission: 18 April 1945: 18 Halifaxes bombed Heligoland and another Halifax crashed in sea en route to objective.

Above sentence is incorrect:- The last wartime operation by No. 420 Squadron was to Bremen on 22 April 1945. This was to be an army co-operation raid but heavy cloud prevented accurate bombing and the operation was cancelled by the Master-bomber. Most aircraft including mine dropped their bombs safely in the North Sea.


In 2004 the Canadian Broadcasting Corporation made a film which documents the crash of DF626, a Wellington bomber of the 420 Squadron. The film is called "Final Flight, The Search for DF626"

External links

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