Halifax-class frigate

HMCS Calgary in July 2014
Class overview
Name	Halifax class
Builders	Saint John Shipbuilding Ltd., Saint John MIL Davie Shipbuilding, Lauzon
Operators	Royal Canadian Navy
Preceded by	Annapolis class
Succeeded by	Canadian Surface Combatant
Built	1987–1996
In commission	1992–present
Completed	12
Active	12
General characteristics
Type	Guided-missile frigate
Displacement	4,770 t (4,770.0 t)
Length	134.1 m (440 ft 0 in)
Beam	16.4 m (53 ft 10 in)
Draught	4.9 m (16 ft 1 in)
Propulsion	CODOG 2 × General Electric LM2500 gas turbines, generating 47,500 shp (35,400 kW) 1 × SEMT Pielstick Diesel engine, generating 8,800 shp (6,600 kW) 1 × Royal de Schelde cross-connect gearbox 2 × Escher Wyss controllable pitch propellers 4 × 850kW AEG Telefunken generators
Speed	30 knots (56 km/h; 35 mph)
Range	9,500 nmi (17,600 km; 10,900 mi)
Complement	225
Sensors and processing systems	Air/surface search: Saab Sea Giraffe HC 150 (G band) Surveillance radar: Thales SMART-S Mk 2 3D Fire control: SAAB CEROS-200 Fire control radar Active sonar: AN/SQS-510 Hull-mounted sonar Passive sonar: AN/SQR-501 CANTASS Passive towed array (variable depth)
Electronic warfare & decoys	TKWA/MASS (Multi Ammunition Softkill System)
Armament	8 × MK 141 Harpoon SSM 16 × Evolved Sea Sparrow Missile SAM/SSM 1 × Bofors 57 mm Mk 3 gun 1 × Phalanx CIWS (Mk 15 Mod 21 (Block 1B)) 6 × .50 calibre machine guns (M2HB-QCB) 24 × Mk 46 torpedoes Mod 5
Aircraft carried	1 × CH-148 Cyclone helicopter
Aviation facilities	One landing pad and one hangar

The Halifax-class frigate, also referred to as the City class, is a class of multi-role patrol frigates that have served the Royal Canadian Navy since 1992. The class is the outcome of the Canadian Patrol Frigate Project, which dates to the mid-1970s.^[1] HMCS Halifax was the first of an eventual twelve Canadian-designed and Canadian-built vessels which combine traditional anti-submarine capabilities with systems to deal with surface and air threats as well. Ships of the class are named after capital cities of Canadian provinces (St. John's, Halifax, Charlottetown, Fredericton, Québec City, Toronto, Winnipeg, and Regina), the capital of Canada, Ottawa, and the major cities of Calgary, Montreal, and Vancouver.

In 2007, the Government of Canada announced a planned refit of the Halifax class which is known as the Halifax Class Modernization Project (HCMP) of which the Frigate Equipment Life Extension (FELEX) project is a part. In November 2008, a Lockheed Martin Canada-led team including Saab AB, Elisra, IBM Canada, CAE Professional Services, L-3 Electronic Systems and xwave, was awarded the contract. The construction phase of the program was completed in November 2016.^[2] As of May 2021^[update], the Halifax-class modernization program is being closed out, but full operational capacity was reached on 31 January 2018.^[3]

In October 2011 the Canadian government launched the National Shipbuilding Procurement Strategy which aims to replace the Halifax class, as well as the capabilities of the Iroquois-class destroyers, with up to 15 new warships under the Canadian Surface Combatant. This replacement class is currently in the design stage and construction is anticipated to begin in the early 2020s. However, the Halifax-class vessels continue to be upgraded with at least some ships of the class anticipated as likely to continue service into the 2040s.^[4]