NationMaster - Encyclopedia: Iroquois class destroyer

Iroquois-class destroyers are a class of three helicopter-carrying, guided missile destroyers of the Canadian Navy. Launched in the 1970s, the Iroquois's were the first all gas turbine powered military ships, using two turbines for cruise power, and another two fast starting "boost" turbines for speeds of up to 29 knots (such an arrangement is known as COGOG). They were originally fitted out for anti-submarine warfare, but a major upgrade program in the 1990s overhauled them for area-wide anti-aircraft. Image File history File linksMetadata Download high resolution version (3000x1955, 1636 KB) HMCS Algonquin From the RIMPAC website: Source:http://www. ... Image File history File links Flag_of_Canada. ... Image File history File links Naval_Jack_of_Canada. ... The Province-class destroyer is the name given by military observers and naval buffs to the expected replacement of the Canadian Forces Iroquois class destroyer fleet. ... July 29 is the 210th day (211th in leap years) of the year in the Gregorian Calendar, with 155 days remaining. ... 1972 (MCMLXXII) was a leap year starting on Saturday. ... HMCS Iroquois (DDH 280) is a Iroquois class destroyer of the Canadian Navy. ... HMCS Athabaskan (DDH 282) is an Iroquois class destroyer of the Canadian Navy. ... HMCS Algonquin at Pearl Harbor, 2004-07-06 HMCS Algonquin is a Canadian destroyer, the second to bear the name. ... HMCS Huron (DDH 281) was a Iroquois class destroyer of the Canadian Navy, decommissioned in 2005. ... Principle of a COGOG propulsion system Combined gas or gas (COGOG) is a propulsion system for ships using gas turbine engines. ... The watt (symbol: W) is the SI derived unit of power, equal to one joule per second. ... Pratt & Whitney is an American aircraft engine manufacturer whose products are widely used in both civil and military aircraft. ... The VLS cells on board USS San Jacinto. ... The Standard Missile is a type of surface-to-air missile (SAM) originally developed for the United States Navy. ... Akash Missile Firing French Air Force Crotale battery Bendix Rim-8 Talos surface to air missile of the US Navy A surface-to-air missile (SAM) is a missile designed to be launched from the ground to destroy aircraft. ... The Oto Melara 76 mm gun is a polyvalent naval artillery piece built by the Italian company Otobreda and Oto Melara. ... A French Lynx helicopter carrying a mk46 torpedo Designed to attack high-performance submarines, the Mark 46 torpedo is the backbone of the U.S. Navys lightweight ASW torpedo inventory, and is the current NATO standard. ... Block 1 CIWS The Phalanx CIWS (Close-in weapon system, pronounced see-wiz) is an anti-missile system that was designed and manufactured by the General Dynamics Corporation, Pomona Division. ... This article is about the . ... Thales Nederland B.V. (formerly Signaal) is a subsidiary of Thales Group involved primarily in naval defence systems (sensors, radars and infrared systems). ... US Navy Sea King Several UH-3 Sea Kings taking off The Sikorsky UH-3 Sea King (also known as Sikorsky S-61) is a twin-engined multi-purpose helicopter. ... The Bell 206 of Canadian Helicopters Robinson Helicopter Company (USA) R44, a four seat development of the R22 A helicopter is an aircraft which is lifted and propelled by one or more horizontal rotors consisting of two or more rotor blades. ... USS Lassen, an Arleigh Burke-class destroyer In naval terminology, a destroyer is a fast and maneuverable yet long-endurance warship intended to escort larger vessels in a fleet or battle group and defend them against smaller, short-range attackers (originally torpedo boats, later submarines and aircraft). ... Canadian Forces Maritime Command (MARCOM) is responsible for naval operations of the navy of the Canadian Armed Forces. ... The 1970s decade refers to the years from 1970 to 1979, inclusive. ... This machine has a single-stage centrifugal compressor and turbine, a recuperator, and foil bearings. ... Principle of a COGOG propulsion system Combined gas or gas (COGOG) is a propulsion system for ships using gas turbine engines. ... Anti-submarine warfare (ASW or in older forms A/S) is a branch of naval warfare that uses surface warships, aircraft or other submarines to find, track and then damage or destroy enemy submarines. ... American troops man an anti-aircraft gun near the Algerian coastline in 1943 Anti-aircraft, or air defense, is any method of combating military aircraft from the ground. ...

Original design

When they entered service the ships were primarily intended for long-range anti-submarine warfare. Their primary weapon for this role was their complement of two CH-124 Sea King helicopters, which could be launched in even high sea states due to their "bear trap" winch system. The ship included a hangar that provided an enclosed working space for both helicopters at the same time. The helicopters were backed up by two triple-mount torpedo launchers firing Mk.44 and Mk.46 Mod 5 torpedoes and a Limbo Mark 10 depth charge mortar. This is a disambiguation page. ... The beartrap or bearclaw is the name of a device invented to enable smaller warships, like frigates and destroyers to carry helicopters, and allow those helicopters to land in bad weather. ... Limbo was the name for the final development of allied anti-submarine weapon during World War 2. ... Depth Charge used by U.S. Navy later in World War II The depth charge is the oldest anti-submarine weapon. ... US soldier loading a M224 60-mm mortar. ...

For other duties the ships also mounted a 5" OTO Melara multi-purpose gun and two four-round Sea Sparrow launchers for point anti-aircraft defense. The missile batteries were located on the interior of the ship on either side of the superstructure, requiring some time for them to unlimber for firing. Oto Melara is a Italian defence company with factories in Brescia and La Spezia. ... A RIM-7 Sea Sparrow being launched from the USS Essex (LHD-2) The AIM-7 Sparrow is a medium-range semi-active radar homing air-to-air missile operated by the USAF, US Navy, and USMC as well as various allied air forces. ...

The ships were powered primarily by two Pratt & Whitney FT4-A2's gas turbines of 50,000 shp each, backed up by two more FT12-AH3 of 7,400 shp each for boost. The power from these turbines was used to run the twin shafts through a series of helical gears. One unique feature was the distinctive Y-shaped "Playboy Bunny" funnels, which were designed to exit the exhaust gasses to either side of the helicopter deck. Pratt & Whitney is an American aircraft engine manufacturer whose products are widely used in both civil and military aircraft. ... This article or section does not cite its references or sources. ...

The ships were 425 × 50 × 14 feet (129.8 × 15.2 × 4.4 meters) and 4,700 tons displacement. The normal crew complement was 285.

Gulf War modification

During the Gulf War of 1990/91, ATHABASKAN was sent to the Persian Gulf along with two other ships. She was quickly upgraded with a new mine-avoidance sonar, along with a Phalanx 20mm CIWS (mounted over the Limbo mortar well) and shoulder launched Blowpipe and Javelin missiles. The Limbo mortar was inoperative.

TRUMP modifications

The entire class underwent major retrofits as a part of the Tribal Class Update and Modernization Program, or TRUMP, in the 1990s. These refits had the effect of re-purposing the ships for area air defence, and the ships now referred to as air defence destroyers. Their former anti-submarine role has since been taken over, to a large degree at least, by the newer Halifax-class frigates. The Halifax Class Multi-Role Patrol Frigate (hull designation FFH) is a class of Canadian Navy frigates launched between 1992 and 1996. ...

The main weapon of the new design is the Mk.41 VLS, firing 29 SM-2 Block III long-range anti-aircraft missiles. In order to provide room for the VLS, the original 5" gun was replaced with the smaller but much faster firing Otobreda 76 mm gun, relocated from the deck to the bridgework above it. A Phalanx CIWS was also added for self-defense. The torpedo tubes were retained, but the Sea Sparrow system was removed. Categories: Stub ... The Standard Missile is a type of surface-to-air missile (SAM) originally developed for the United States Navy. ... The Oto Melara 76 mm gun is a polyvalent naval artillery piece built by the Italian company Otobreda and Oto Melara. ... Block 1 CIWS The Phalanx CIWS (Close-in weapon system, pronounced see-wiz) is an anti-missile system that was designed and manufactured by the General Dynamics Corporation, Pomona Division. ...

The modernization also replaced the original Pratt & Whitney FT-12 cruise turbines with newer 12,788 shp 570-KF engines from Allison. The speed remained the same, however, as the weight had increased to 5,100 tons full load. The original split funnel was replaced by a simpler single one, as the exhaust proved not to be a problem. Pratt & Whitney is an American owned aircraft engine manufacturer whose products are widely used in both civil and military aircraft. ... The Allison Engine Company was an aircraft engine manufacturer that was acquired by Rolls-Royce in 1995. ...

The TRUMP ships were intended to be a stop-gap measure only, their radar systems in particular being rather outdated. Currently the Iroquois are intended to serve until 2010, after some forty years of service.

There was some work on a replacement design, known to Navy-watchers as the Province-class destroyers, but this was confined largely to studies of a much-improved phased array radar system being developed for the Dutch and Germans, known as APAR. Current speculation is that the ships themselves would be similar to a "stretched" Halifax-class. Such a design would have similar capability to the Iroquois but with only one helicopter, and still be no match for the US's Arleigh Burke-class destroyer. There appear to be no current plans to actually build such a class, however. The Province-class destroyer is the name given by military observers and naval buffs to the expected replacement of the Canadian Forces Iroquois class destroyer fleet. ... APAR AESA An Active Electronically Scanned Array (AESA), also known as active phased array radar is a revolutionary type of radar whose transmitter and receiver functions are composed of numerous small transmit/receive (T/R) modules that each scan a small fixed area, negating the need for a moving antenna. ... The Arleigh Burke class of guided missile destroyers, one of the destroyer classes of the United States Navy, is built around the Aegis combat system and the SPY-1D multi-function phased array radar. ...

General characteristics

Principle of a COGOG propulsion system Combined gas or gas (COGOG) is a propulsion system for ships using gas turbine engines. ... The watt (symbol: W) is the SI derived unit of power, equal to one joule per second. ... Pratt & Whitney is an American aircraft engine manufacturer whose products are widely used in both civil and military aircraft. ... A knot is a unit of speed, abbreviated kt or kn. ... US Navy Sea King Several UH-3 Sea Kings taking off The Sikorsky UH-3 Sea King (also known as Sikorsky S-61) is a twin-engined multi-purpose helicopter. ... The VLS cells on board USS San Jacinto. ... The Standard Missile is a type of surface-to-air missile (SAM) originally developed for the United States Navy. ... Akash Missile Firing French Air Force Crotale battery Bendix Rim-8 Talos surface to air missile of the US Navy A surface-to-air missile (SAM) is a missile designed to be launched from the ground to destroy aircraft. ... The Oto Melara 76 mm gun is a polyvalent naval artillery piece built by the Italian company Otobreda and Oto Melara. ... Block 1 CIWS The Phalanx CIWS (Close-in weapon system, pronounced see-wiz) is an anti-missile system that was designed and manufactured by the General Dynamics Corporation, Pomona Division. ... A French Lynx helicopter carrying a mk46 torpedo Designed to attack high-performance submarines, the Mark 46 torpedo is the backbone of the U.S. Navys lightweight ASW torpedo inventory, and is the current NATO standard. ... Thales Nederland B.V. (formerly Signaal) is a subsidiary of Thales Group involved primarily in naval defence systems (sensors, radars and infrared systems). ...

Ships in class

Iroquois heads into the Atlantic passing Gibraltar

HMCS Iroquois (DDH 280)

Builders: Canada (Built at Marine Industries Limited, Sorel-Tracy Quebec)
Laid down: 15 January 1969
Launched: 28 November 1970
Operator: Canadian Forces Maritime Command
Commissioned: 29 July 1972
Status: In active service
Modifications: 3 July 1992 TRUMP - addition of Mk.41 VLS SM-2 Block III, Phalanx CIWS and Otobreda 76 mm gun; removal of Sea Sparrow SAM
Operations:

Image:HMCS Huron (DDH 281).jpg

Huron

HMCS Huron (DDH 281)

Builders: Canada (MIL Davie Shipbuilding in Lauzon, Quebec)
Laid down: 1 June 1969
Launched: 9 April 1971
Operator: Canadian Forces Maritime Command
Commissioned: 16 December 1972
Decommissioned: 31 March 2005
Status: Laid up in Esquimalt
Modifications: 25 November 1994 TRUMP - addition of Mk.41 VLS SM-2 Block III, Phalanx CIWS and Otobreda 76 mm gun; removal of Sea Sparrow SAM
Operations:

Algonquin at Rim of the Pacific Exercise (RIMPAC) 2004

HMCS Algonquin (DDH 283)

Builders: Canada (MIL Davie Shipbuilding in Lauzon, Quebec)
Laid down: 1 September 1969
Launched: 23 April 1971
Operator: Canadian Forces Maritime Command
Commissioned: 3 November 1972
Status: In active service
Modifications: 4 June 1994 TRUMP - addition of Mk.41 VLS SM-2 Block III, Phalanx CIWS and Otobreda 76 mm gun; removal of Sea Sparrow SAM
Operations:

Image File history File linksMetadata HMCS_Iroquois_DDH_280. ... Image File history File linksMetadata HMCS_Iroquois_DDH_280. ... HMCS Iroquois (DDH 280) is a Iroquois class destroyer of the Canadian Navy. ... Image File history File links Flag_of_Canada. ... January 15 is the 15th day of the year in the Gregorian calendar. ... For the Stargate SG-1 episode, see 1969 (Stargate SG-1). ... November 28 is the 332nd day (333rd on leap years) of the year in the Gregorian Calendar. ... 1970 (MCMLXX) was a common year starting on Thursday (the link is to a full 1970 calendar). ... Image File history File links Naval_Jack_of_Canada. ... HMCS Bastion, flagship of the Canadian Navy. ... July 29 is the 210th day (211th in leap years) of the year in the Gregorian Calendar, with 155 days remaining. ... 1972 (MCMLXXII) was a leap year starting on Saturday. ... July 3 is the 184th day of the year (185th in leap years) in the Gregorian calendar, with 181 days remaining. ... 1992 (MCMXCII) was a leap year starting on Wednesday. ... Categories: Stub ... The Standard Missile is a type of surface-to-air missile (SAM) originally developed for the United States Navy. ... Block 1 CIWS The Phalanx CIWS (Close-in weapon system, pronounced see-wiz) is an anti-missile system that was designed and manufactured by the General Dynamics Corporation, Pomona Division. ... The Oto Melara 76 mm gun is a polyvalent naval artillery piece built by the Italian company Otobreda and Oto Melara. ... HMCS Huron (DDH 281) was a Iroquois class destroyer of the Canadian Navy, decommissioned in 2005. ... Image File history File links Flag_of_Canada. ... Lauzon is a former city in southern Quebec, Canada, located on the St. ... June 1 is the 152nd day of the year in the Gregorian calendar (153rd in leap years), with 213 days remaining. ... For the Stargate SG-1 episode, see 1969 (Stargate SG-1). ... April 9 is the 99th day of the year in the Gregorian calendar (100th in leap years). ... 1971 (MCMLXXI) was a common year starting on Friday. ... Image File history File links Naval_Jack_of_Canada. ... HMCS Bastion, flagship of the Canadian Navy. ... -1... 1972 (MCMLXXII) was a leap year starting on Saturday. ... March 31 is the 90th day of the year in the Gregorian Calendar (91st in leap years), with 275 days remaining. ... 2005 (MMV) was a common year starting on Saturday of the Gregorian calendar. ... November 25 is the 329th (in leap years the 330th) day of the year in the Gregorian calendar. ... 1994 (MCMXCIV) was a common year starting on Saturday of the Gregorian calendar, and was designated as the International Year of the Family and the International Year of the Sport and the Olympic Ideal by United Nations. ... Categories: Stub ... The Standard Missile is a type of surface-to-air missile (SAM) originally developed for the United States Navy. ... Block 1 CIWS The Phalanx CIWS (Close-in weapon system, pronounced see-wiz) is an anti-missile system that was designed and manufactured by the General Dynamics Corporation, Pomona Division. ... The Oto Melara 76 mm gun is a polyvalent naval artillery piece built by the Italian company Otobreda and Oto Melara. ... Image File history File links Athabaskan_DDH_282. ... Image File history File links Athabaskan_DDH_282. ... HMCS Athabaskan (DDH 282) is an Iroquois class destroyer of the Canadian Navy. ... Image File history File links Flag_of_Canada. ... Lauzon is a former city in southern Quebec, Canada, located on the St. ... June 1 is the 152nd day of the year in the Gregorian calendar (153rd in leap years), with 213 days remaining. ... For the Stargate SG-1 episode, see 1969 (Stargate SG-1). ... November 27 is the 331st day (332nd on leap years) of the year in the Gregorian Calendar. ... 1970 (MCMLXX) was a common year starting on Thursday (the link is to a full 1970 calendar). ... Image File history File links Naval_Jack_of_Canada. ... HMCS Bastion, flagship of the Canadian Navy. ... November 30 is the 334th day (335th on leap years) of the year in the Gregorian Calendar, with 31 days remaining. ... 1972 (MCMLXXII) was a leap year starting on Saturday. ... June 4 is the 155th day of the year in the Gregorian calendar (156th in leap years), with 210 days remaining. ... 1994 (MCMXCIV) was a common year starting on Saturday of the Gregorian calendar, and was designated as the International Year of the Family and the International Year of the Sport and the Olympic Ideal by United Nations. ... Categories: Stub ... The Standard Missile is a type of surface-to-air missile (SAM) originally developed for the United States Navy. ... Block 1 CIWS The Phalanx CIWS (Close-in weapon system, pronounced see-wiz) is an anti-missile system that was designed and manufactured by the General Dynamics Corporation, Pomona Division. ... The Oto Melara 76 mm gun is a polyvalent naval artillery piece built by the Italian company Otobreda and Oto Melara. ... Image File history File linksMetadata Download high resolution version (1911x1239, 385 KB) Canadian destroyer HMCS Algonquin (DDG 283) The Canadian destroyer HMCS Algonquin (DDG 283) is shown underway in close formation with the Nimitz-class aircraft carrier USS (CVN 74) and the guided missile frigate USS Ford (FFG 54). ... Image File history File linksMetadata Download high resolution version (1911x1239, 385 KB) Canadian destroyer HMCS Algonquin (DDG 283) The Canadian destroyer HMCS Algonquin (DDG 283) is shown underway in close formation with the Nimitz-class aircraft carrier USS (CVN 74) and the guided missile frigate USS Ford (FFG 54). ... HMCS Algonquin at Pearl Harbor, 2004-07-06 HMCS Algonquin is a Canadian destroyer, the second to bear the name. ... Image File history File links Flag_of_Canada. ... Lauzon is a former city in southern Quebec, Canada, located on the St. ... September 1 is the 244th day of the year (245th in leap years) in the Gregorian calendar. ... For the Stargate SG-1 episode, see 1969 (Stargate SG-1). ... April 23 is the 113th day of the year in the Gregorian Calendar (114th in leap years). ... 1971 (MCMLXXI) was a common year starting on Friday. ... Image File history File links Naval_Jack_of_Canada. ... HMCS Bastion, flagship of the Canadian Navy. ... November 3 is the 307th day of the year (308th in leap years) in the Gregorian Calendar, with 58 days remaining. ... 1972 (MCMLXXII) was a leap year starting on Saturday. ... June 4 is the 155th day of the year in the Gregorian calendar (156th in leap years), with 210 days remaining. ... 1994 (MCMXCIV) was a common year starting on Saturday of the Gregorian calendar, and was designated as the International Year of the Family and the International Year of the Sport and the Olympic Ideal by United Nations. ... Categories: Stub ... The Standard Missile is a type of surface-to-air missile (SAM) originally developed for the United States Navy. ... Block 1 CIWS The Phalanx CIWS (Close-in weapon system, pronounced see-wiz) is an anti-missile system that was designed and manufactured by the General Dynamics Corporation, Pomona Division. ... The Oto Melara 76 mm gun is a polyvalent naval artillery piece built by the Italian company Otobreda and Oto Melara. ...

External links

Categories: Destroyer classes | Iroquois class destroyers | Canadian Forces destroyers Image File history File links Naval_Jack_of_Canada. ... HMCS Iroquois (DDH 280) is a Iroquois class destroyer of the Canadian Navy. ... HMCS Huron (DDH 281) was a Iroquois class destroyer of the Canadian Navy, decommissioned in 2005. ... HMCS Athabaskan (DDH 282) is an Iroquois class destroyer of the Canadian Navy. ... HMCS Algonquin at Pearl Harbor, 2004-07-06 HMCS Algonquin is a Canadian destroyer, the second to bear the name. ... This is a list of ships in the Canadian Navy. ...

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