423 Maritime Helicopter Squadron

The official lineage of the 423 Maritime Helicopter Squadron.


Squadron standard

Squadron standard



Argent a bald-headed eagle volant proper wings displayed and inverted, legs and claws extended.


The bald-headed eagle is a powerful bird of prey, from the Canadian side of the Atlantic. The motto refers to the squadron’s role as a coastal unit.


QUAERIMUS ET PETIMUS (We search and strike)

Battle honours

The Second World War

ATLANTIC, 1942-1945; ENGLISH CHANNEL AND NORTH SEA, 1944-1945; Normandy, 1944; BISCAY, 1944.

The Gulf War



  • Authorized as 'No.423 (General Reconnaissance) Squadron' 18 May 1942.Footnote 1
  • Redesignated 'No.423 (Transport) Squadron' 5 June 1945.Footnote 2
  • Disbanded 4 September 1945.Footnote 3
  • Reformed as '423 All Weather Fighter Squadron' 1 June 1953.Footnote 4
  • Disbanded 31 December 1962.Footnote 5
  • Reformed as ''423 Helicopter Anti-Submarine Squadron' 3 September 1974,Footnote 6 from one-half of '50 Helicopter Anti-Submarine Squadron' (authorized 4 July 1955 [see also 443 Squadron]).Footnote 7
  • Redesignated '423 Maritime Helicopter Squadron' 30 January 1995.Footnote 8

Operational history

The Second World War

The squadron flew on convoy escort and antisubmarine missions in Great Britain under 'Coastal Command' and on transport duties with 'Transport Command'.Footnote 10

The Gulf War

The squadron participated with the multi-national Persian Gulf tactical air force in the United Nations action against Iraq.Footnote 11

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