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Iroquois 1978

Ships

Name	No	Yard No	Builder	Laid down	Launched	Comp	Fate
Iroquois	DDH280		Marine Industries, Sorel	15.1.1969	28.11.1970	29.7.1972	decommissioned 5.2015
Huron	DDH281		Marine Industries, Sorel	15.1.1969	3.4.1971	16.12.1972	decommissioned 3.2005
Athabaskan	DDH282		Davie SB, Lauzon	1.6.1969	27.11.1970	30.11.1972	decommissioned 3.2017
Algonquin	DDH283		Davie SB, Lauzon	1.9.1969	23.4.1971	30.9.1973	decommissioned 6.2015

Technical data

Data variant	as completed	TRUMP modernization
Displacement standard, t	3551	4450
Displacement full, t	4200	5100
Length, m	121.3 pp 128.9 oa	121.3 pp 128.9 oa
Breadth, m	15.2	15.2
Draught, m	4.42	4.69 hull 7.86 max
No of shafts	2	2
Machinery	COGOG: 2 Pratt & Whitney FT4A-2 gas turbines / 2 Solar Mk FT 12H gas turbines	COGOG: 2 Pratt & Whitney FT4A-2 gas turbines / 2 Allison 570KF gas turbines
Power, h. p.	50000 / 7400	47494 / 12890
Max speed, kts	29	29
Fuel, t	gas turbine oil	gas turbine oil
Endurance, nm(kts)	4500(20)	4500(15)
Armament	2 x 4 Canadian Sea Sparrow SAM (32 AIM-7E), 1 x 1 - 127/54 OTO-Melara Compact, 2 x 3 - 324 Mk 32 TT, 1 x 3 Limbo Mk 10 ASWRL, 2 helicopters (CHSS-2 Sea King)	DDH280, 282, 283: 1 x 29 Standard SM-2MR Block IIIA SAM (VLS, 29 RIM-66M-2), 1 x 1 - 76/62 OTO-Melara Compact SR, 1 x 6 - 20/76 Phalanx Mk 15 Block I, 2 x 3 - 324 Mk 32 Mod. 5 TT, 2 helicopters (CH-124A Sea King) DDH281: 1 x 29 Standard SM-2MR Block IIIA SAM (VLS, 29 RIM-66M-2), 1 x 1 - 76/62 OTO-Melara Compact SR, 2 x 3 - 324 Mk 32 Mod. 5 TT, 2 helicopters (CH-124A Sea King)
Electronic equipment	Koden MD373, SP-501, SPQ-2D, 2x WM-22 radars, SQS-505, SQS-505(VDS), SQS-501 sonars, WLR-1, ULQ-6 ECM suites, 1x flare RL, 2x Corvus decoy RL	DDH280: Sperry Mk 340, Koden MD373, SPQ-501 (DA-08/2LS), SPQ-502 (LW-08), 2x SPG-501 (STIR1.8/OT-134), Mk 90, LIROD-8 radars, SQS-505(v)4, SQS-505(v)5 VDS sonars, SLQ-501 (CANEWS), ULQ-6B ECM suites, 2x Corvus decoy RL, SLQ-25 Nixie torpedo decoy, SHINPADS CCS DDH281-282: Sperry Mk 340, Raytheon 1900 Pathfinder, SPQ-501 (DA-08/2LS), SPQ-502 (LW-08), 2x SPG-501 (STIR1.8/OT-134), Mk 90, LIROD-8 radars, SQS-505(v)4, SQS-505(v)5 VDS sonars, SLQ-501 (CANEWS), ULQ-6B ECM suites, 2x Corvus decoy RL, SLQ-25 Nixie torpedo decoy, SHINPADS CCS
Complement	285	322

Standard scale images

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Project history

Ordered in 1968 as a revised design on the same hull as the cancelled general-purpose frigates of 1963. The design allowed for two big helicopters (CHSS-2) to enhance their ASW capabilities, and they were among the best equipped escorts in the world.

Modernizations 10.

1991, Algonquin; 5.1992, Iroquois; 8.1994, Athabaskan; 11.1994, Huron: as TRUMP conversion with the data as given in the table.

1998-2000, all: - SQS-505(v)4, SQS-505(v)5 VDS sonars; + SQS-510(v)4, SQS-510 VDS, Spectra 3000 sonars

1999, all: - ULQ-6B ECM suite, 2x Corvus decoy RL; + 4x Shield, 2x Nulka decoy RL

2002, Athabaskan; 2003, Algonquin; 2004, Iroquois: - SHINPADS CCS; + Westcam 14, Sirius e/o systems, JMCIS CCS