HMCS St. Laurent (DDH 205)

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For other ships of the same name, see HMCS St. Laurent.
Career (Canada) Canadian Blue Ensign Royal Canadian Navy
Naval flag of Canada Canadian Forces Maritime Command
Namesake: St. Lawrence River
Builder: Canadian Vickers, Montreal
Laid down: 24 November 1950
Launched: 30 November 1951
Commissioned: 29 October 1955
Decommissioned: 14 June 1974
Reclassified: 4 October 1963 (as DDH)
Fate: Sunk off Cape Hatteras en route to breakers in Texas.
General characteristics
Class and type: St. Laurent class destroyer
Displacement:

As DDE: 2263 tons (normal), 2800 tons (deep load)[1]

As DDH:

2260 tons (normal), 3051 tons (deep load)[2]
Length: 371 feet (113.1 m)
Beam: 42 feet (12.8 m)
Draught:

As DDE: 13 feet (4.0 m)[3]

As DDH:14 feet (4.3 m)[4]
Propulsion: 2-shaft English-Electric geared steam turbines, 3 Babcock and Wilcox boilers 30,000 shp
Speed: 28.5 knots (52.8 km/h)[5]
Range: 4,750 nautical miles (8,797.0 km) at 14 knots (25.9 km/h)[6]
Complement:

As DDE: 249

As DDH: 213 plus 20 aircrew
Sensors and
processing systems:

As DDE:

  • 1 x SPS-12 air search radar
  • 1 x SPS-10B surface search radar
  • 1 x Sperry Mk.2 navigation radar
  • 1 x SQS-10 or -11 hull mounted active search and attack sonar
  • 1 x SQS-501 (Type 162) high frequency bottom profiling sonar
  • 1 x SQS-502 (Type 170) high frequency Limbo mortar control sonar
  • 1 x UQC-1B "Gertrude" underwater telephone
  • 1 x GUNAR (Mk.64 GFCS with 2 on-mount SPG-48 directors)

As DDH:

  • 1 x SPS-12 air search radar
  • 1 x SPS-10B surface search radar
  • 1 x Sperry Mk.2 navigation radar
  • 1 x URN 20 TACAN radar
  • 1 x SQS-10 or -11 hull mounted active search and attack sonar
  • 1 x SQS-501 (Type 162) high frequency bottom profiling sonar
  • 1 x SQS-502 (Type 170) high frequency Limbo mortar control sonar
  • 1 x SQS-504 VDS, medium frequency active search (except 233 after 1986)
  • 1 x UQC-1B "Gertrude" underwater telephone
  • 1 x GUNAR (Mk.64 GFCS with 1 on-mount SPG-48 director)
Electronic warfare
and decoys:

As DDE:

  • 1 x DAU HF/DF (high frequency direction finder)

As DDH:

  • 1 x WLR 1C radar warning
  • 1 x UPD 501 radar detection
  • 1 x SRD 501 HF/DF
Armament:

As DDE:

  • 2 x 3"/50 Mk.33 FMC twin mounts guns
  • 2 x 40mm "Boffin" single mount guns
  • 2 x Mk NC 10 Limbo ASW mortars
  • 2 x single Mk.2 "K-gun" launchers with homing torpedoes

As DDH:

  • 1 x 3"/50 Mk.33 FMC twin mount gun
  • 1 x Mk NC 10 Limbo ASW mortar
  • 2 x triple Mk.32 12.75 inch launchers firing Mk.44 or Mk.46 Mod 5 torpedoes
Aircraft carried:

As DDE:

none

As DDH:

HMCS St. Laurent (DDH 205) was a St. Laurent-class destroyer that served in the Royal Canadian Navy and later the Canadian Forces from 1955-1974.

She was the lead ship of her class, having been commissioned into the RCN on 29 October 1955 and initially carried the pennant number DDE 205 as a destroyer escort. She underwent conversion to a destroyer helicopter escort (DDH) in the early 1960s and was officially reclassed with pennant DDH 205 on 4 October 1963.

St. Laurent experienced keel damage later in her career and was paid off early as the Canadian Forces opted to not include her in the Destroyer Life Extension (DELEX) program of the 1970s. She was decommissioned from the CF on 14 June 1974 and sold in 1979 for scrapping in Texas.

En route to breakers in Brownsville, Texas, she took on water and foundered off Cape Hatteras on 12 January 1980.

[edit] References

  1. ^ These were "officially revised figures" quoted in Janes Fighting Ships 1963-64
    Conways says 2000 tons standard displacement, 2600 deep load.
    Combat Fleets of the World 1978-79 says 2390 tons displacement, 2900 full load.
  2. ^ Janes Fighting Ships 1992-93, p84.
  3. ^ Janes Fighting Ships 1963-64
  4. ^ Janes Fighting Ships 1992-93, p84.
  5. ^ Janes Fighting Ships 1963-64
  6. ^ Combat Fleets of the World 1978-79
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St Laurent-class destroyer
Assiniboine · Fraser · Margaree · Ottawa · Saguenay · Skeena · St. Laurent
List of ships of the Canadian Navy