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Oliver Hazard Perry vs Type 21

Oliver Hazard Perry vs Type 21 at a glance — displacement 4,165 vs 3,250 tons, length 136 vs 117 m, speed 30 vs 37 knots, crew 176 vs 177.

Specifications
Oliver Hazard Perry Type 21
Origin 🇺🇸 United States 🇬🇧 United Kingdom
Category Frigate Frigate
Type Guided-missile frigate Frigate
Manufacturer Bath Iron Works Yarrow Shipbuilders
Year introduced 1977 1974
Number built 71 units 8 units
Estimated unit price $122 million $60 million
Displacement 4,165 tons 3,250 tons
Maximum speed 30.0 knots 37.0 knots
Range 4,500 nm at 20 knots 4,000 nm at 17 knots
Length 136.0 m 117.0 m
Beam 14.0 m 12.7 m
Crew 176 177
Performance Radar Chart
Armament & Systems
Oliver Hazard Perry Type 21
Armament
  • 1 × single-arm Mk 13 Missile Launcher (40-missile magazine with SM-1MR and Harpoon missiles)
  • Mk 38 Mod 2 Machine Gun Systems
  • 2 × triple Mark 32 Anti-submarine warfare torpedo tubes (Mark 46 or Mark 50 torpedoes)
  • 1 × OTO Melara 76 mm/62 caliber naval gun
  • 1 × 20 mm Phalanx CIWS
  • 8 × Hsiung Feng II SSM or 4 HF-2 and 4 HF-3 supersonic AShM (Taiwanese vessels only)
  • 2 × Bofors 40 mm/L70 guns (Taiwanese vessels only)
  • 1 × 4.5 in (114 mm) Vickers Mark 8 gun
  • 2 × 20 mm Oerlikon guns (later 4)
  • 1 × 4-rail launcher for GWS-24 Sea Cat
  • 2 × 8-barrelled Knebworth Corvus countermeasures launchers
  • 4 × launchers for MM38 Exocet surface-surface missiles
  • 2 × 12.75 in (324 mm) 3-tube STWS-1 anti-submarine torpedo launchers
  • TKWA/MASS (Multi Ammunition Softkill System)
  • 2 x 4-cell Harpoon missile launchers
  • 1 x 6-cell LY-60N Hunting Eagle SAM launcher
  • 1 × Vulcan Phalanx 20mm CIWS
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 COGOG on 2 shafts; 2 × Tyne cruise turbines: 8,500 shp (6,300 kW); 2 × Olympus boost turbines: 50,000 shp (37,000 kW)
Change comparison vs
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Frequently Asked Questions

Which has greater displacement, the Oliver Hazard Perry-class or Type 21-class?
The Oliver Hazard Perry-class has greater displacement at 4,165 tons compared to the Type 21-class's 3,250 tons.
Which is faster, the Oliver Hazard Perry-class or Type 21-class?
The Type 21-class is faster with a maximum speed of 37 knots compared to the Oliver Hazard Perry-class's 30 knots.
Which has longer range, the Oliver Hazard Perry-class or Type 21-class?
The Oliver Hazard Perry-class has a longer range at 4,500 nautical miles compared to the Type 21-class's 4,000 nautical miles.
Which is longer, the Oliver Hazard Perry-class or Type 21-class?
The Oliver Hazard Perry-class is longer at 136.0 meters compared to the Type 21-class's 117.0 meters.
How many crew members do the Oliver Hazard Perry-class and Type 21-class have?
The Type 21-class has a larger crew complement of 177 compared to the Oliver Hazard Perry-class's 176 crew members.
Which is more expensive, the Oliver Hazard Perry-class or Type 21-class?
The Oliver Hazard Perry-class is more expensive at approximately $122 million per unit compared to the Type 21-class at $60 million.
Which has been built in greater numbers, the Oliver Hazard Perry-class or Type 21-class?
The Oliver Hazard Perry-class has been built in greater numbers with 71 vessels compared to 8 vessels of the Type 21-class.