Volume 4: Operational Flying Squadrons

423 Maritime Helicopter Squadron

423 Maritime Helicopter Squadron Badge

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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)


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 1942.1
Redesignated 'No.423 (Transport) Squadron' 5 June 1945.2
Disbanded 4 September 1945.3
Reformed as '423 All Weather Fighter Squadron' 1 June 1953.4
Disbanded 31 December 1962.5
Reformed as ''423 Helicopter Anti-Submarine Squadron' 3 September 1974,6 from one-half of '50 Helicopter Anti-Submarine Squadron' (authorized 4 July 1955 [see also 443 Squadron]).7
Redesignated '423 Maritime Helicopter Squadron' 30 January 1995.8


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'.10

The Gulf War

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


423 Maritime Helicopter Squadron

1. Loose minute/dossierS.2-2-423 (DAS), Kardex 181.006 (D303); AFRO 1296/45, Appendix “B”

2. Information Memorandum No 126, 5 June 1945, file/dossier S.2-3-422 (DAS), Kardex 181.006 (D303)

3. Information Memorandum No 162, 3 September 1945, file/dossier S.2-3-423, Kardex 181.006 (D303)

4. Organization Order 21/53, 24 March 1953, file/dossier 895-9/423 (DOE), RCAF Diaries, microfilm 150

5. Organization Order 4.3.1, 31 July 1962, file/dossier 895-9/423, NAC/AN, RG/GE 24, Accn 83-84/216, box/boîte 3024

6. CFOO/OOFC 9.5.2, 30 April/avril 1975, file/ dossier1901-1312 (DOE); NDHQ Message/Message du QGDN DOE 350, 301250Z Jul/jul 74, no file number/ /aucun numéro de dossier PRF/DRP R S7 423

7. Message, CANAVHED to CANFLAGLANT, 8 June 1955, file/dossier NSS 1115-39 (STAFF), Document Collection NHS files/dans les dossiers SHM de la collection de documents

8. CFOO/OOFC 2.10.2, 9 September/septembre 1977, file/ dossier1901-1312 (DMCO)

9. NDHQ Message/Message du QGDN DGFD 1002, 271404Z Jan/jan 95, file/dossier 1901-1 (DEMR)

10. Location of RCAF Squadrons, January 1944, Document Collection/collection de documents 72/360; Order of Detail No 31, 18 May 1942, no file number/aucun numéro de dossier, Kardex 181.006 (D303); Information Memorandum No 126, 5 June 1945, file/dossier S.2-3-423, Kardex 181.006 (D303); AFHS, “No.423 (R.C.A.F.) Squadron”, PRF/DRP R S7 423

11. CFSO/OSFC 5/94, 1994-05-06, file/dossier 1600-43-94, PRF/DRP R S7 423

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