Canadian Halifax Class Frigate:
Type: Guided Missile Frigate with Helicopter (FFH)
Displacement: 4,770 tonnes (full load)
Dimensions: 134.1 meters length x 16.4 meters width x 4.9 meters draft
Armament:
Missiles: 8 × MK 141 Harpoon SSM; 16 x RIM-162 ESSM SAM/SSM
Torpedoes: 24 × Mk 46 torpedoes Mod 5
Guns:
1 × 57 mm Bofors Mk2 gun (220 rounds/minute to 10nm)
1 × Phalanx CIWS (Block 1B)
8 × .50cal Heavy Machine Guns
Decoys: 24 shield Chaff/infrared decoys (flares)
Sensors:
Air/Surface Search: Ericsson Sea Giraffe HC 150 (G band)
Long Range Air Search: Raytheon AN/SPS-49 (C/D band)
Fire Control: Signaal SPG-503 STIR 1.8 (K/I band)
Active Sonar: AN/SQS-510 Hull-mounted variable depth (range to 27 nm)
Passive Sonar: AN/SQR-501 CANTASS Passive towed array
Propulsion: Twin CODOG
2 x General Electric LM2500 gas turbines producing 47,500 shp (35,400 kW)
1 Pielstick v20 cruise diesel producing 8,800 shp (6,600 kW)
Speed: 29+ knots (54 km/h)
Endurance:
7,100 nautical miles (13,000 km) at 15 knots (28 km/h) (diesel)
4,500 nautical miles (8,300 km) at 15 knots (28 km/h) (turbine)
Complement: 225 (including air detachment and firefighting unit).
Range: 9,500 nautical miles (18,000 km)
Plans are underway to replace the Sea Sparrow missiles with the Evolved Sea Sparrow, upgrade the towed sonar arrays and fit newer propellers and anechoic tiles to reduce noise emission. HMCS Montreal has already been upgraded in the latter regard. Of note in the structural design of these ships is the distinctive funnel housing, designed to diffuse the