Oliver Hazard Perry class frigate

The frigates Oliver Hazard Perry, Antrim and Jack Williams in 1982
Class overview
Name:	Oliver Hazard Perry class
Builders:	Bath Iron Works Todd Pacific Shipyards San Pedro Todd Pacific Shipyards Seattle Australian Marine Engineering Consolidated Bazan CSBC Corporation, Taiwan
Operators:	Turkish Navy  Royal Australian Navy  Royal Bahrain Naval Force  Republic of China Navy  Egyptian Navy Pakistan Navy  Polish Navy  Spanish Navy  United States Navy (former)
Preceded by:	Brooke class
Succeeded by:	Freedom class Independence class
Subclasses:	Adelaide class (Australia) Santa María class (Spain) Cheng Kung class (Taiwan)
Cost:	US$122 million
Built:	1975–2004
In commission:	1977– present
Planned:	71
Completed:	71
Active:	8 (Turkey) 4 (Egypt) 3 (Australia) 2 (Poland) 1 (Pakistan) 6 (Spain)
Retired:	Over 30
General characteristics
Type:	Guided missile frigate
Displacement:	4,100 long tons (4,200 t) full load
Length:	408 ft (124 m) waterline, 445 ft (136 m) overall, 453 ft (138 m) for "long-hull" frigates
Beam:	45 ft (14 m)
Draft:	22 ft (6.7 m)
Propulsion:	2 × General Electric LM2500-30 gas turbines generating 41,000 shp (31 MW) through a single shaft and variable pitch propeller 2 × Auxiliary Propulsion Units, 350 hp (260 kW) retractable electric azimuth thrusters for maneuvering and docking.
Speed:	over 29 knots (54 km/h)
Range:	4,500 nmi (8,300 km; 5,200 mi) at 20 knots (37 km/h; 23 mph)
Complement:	176
Sensors and processing systems:	Radar: AN/SPS-49, AN/SPS-55, Mk 92 fire control system Sonar: SQS-56, SQR-19 Towed Array
Electronic warfare & decoys:	SLQ-32(V)2, Flight III with sidekick, Mark 36 SRBOC AN/SLQ-25 Nixie
Armament:	One single-arm Mk 13 Missile Launcher with a 40-missile magazine that contains SM-1MR anti-aircraft guided missiles and Harpoon anti-ship missiles. Removed from the U.S. Navy ships starting in 2003, due to the retirement of the SM-1 missile from American service Mk 38 Mod 2 Naval Gun Systems installed on platforms over the removed MK 13 launchers Two triple Mark 32 Anti-submarine warfare torpedo tubes with Mark 46 or Mark 50 anti-submarine warfare torpedoes One OTO Melara 76 mm/62 caliber naval gun One 20 mm Phalanx CIWS rapid-fire cannon Eight Hsiung Feng II SSM or four HF-2 and 4 HF-3 supersonic AShM, plus 2 Bofors 40mm/L70 guns (on Taiwanese vessels only)
Aircraft carried:	Two LAMPS multi-purpose helicopters (the SH-2 Seasprite LAMPS I on the short-hulled ships or the SH-60 Seahawk LAMPS III on the long-hulled ships)

The Oliver Hazard Perry class is a class of guided missile frigates named after the American Commodore Oliver Hazard Perry, the hero of the naval Battle of Lake Erie. Also known as the Perry or FFG-7 class, the warships were designed in the United States in the mid-1970s as general-purpose escort vessels inexpensive enough to be bought in large quantities to replace World War II-era destroyers and complement 1960s-era Knox-class frigates. In Admiral Elmo Zumwalt's "high low fleet plan", the FFG-7s were the low capability ships with the Spruance-class destroyers serving as the high capability ships. Intended to protect amphibious landing forces, supply and replenishment groups, and merchant convoys from aircraft and submarines, they were also later part of battleship-centred surface action groups and aircraft carrier battle groups/strike groups. Fifty-five ships were built in the United States: 51 for the United States Navy and four for the Royal Australian Navy (RAN). In addition, eight were built in Taiwan, six in Spain, and two in Australia for their navies. Former U.S. Navy warships of this class have been sold or donated to the navies of Bahrain, Egypt, Poland, Pakistan, Taiwan and Turkey.

The first of the 51 U.S. Navy built Oliver Hazard Perry frigates entered into service in 1977, the last, the USS Simpson (FFG-56), was decommissioned on Sept. 29, 2015. The retired vessels were either mothballed or transferred to other navies for continued service. Some of the U.S. Navy's frigates, such as USS Duncan (14.6 years in service) had fairly short careers, while a few lasted as long as 30+ years in active U.S. service, with some lasting even longer after being sold or donated to other navies.