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Niterói vs Type 21

Niterói vs Type 21 at a glance — displacement 3,355 vs 3,250 tons, length 129 vs 117 m, speed 30 vs 37 knots, crew 217 vs 177.

Specifications
Niterói Type 21
Origin 🇧🇷 Brazil 🇬🇧 United Kingdom
Category Frigate Frigate
Type Frigate Frigate
Manufacturer Vosper Thornycroft Yarrow Shipbuilders
Year introduced 1976 1974
Number built 7 units 8 units
Estimated unit price NA $60 million
Displacement 3,355 tons 3,250 tons
Maximum speed 30.0 knots 37.0 knots
Range 5,300 nm at 19 knots 4,000 nm at 17 knots
Length 129.2 m 117.0 m
Beam 13.5 m 12.7 m
Crew 217 177
Performance Radar Chart
Armament & Systems
Niterói Type 21
Armament

• 1 × 114 mm Mk 8 gun • Aspide SAM • Exocet missiles • Mk 46 torpedoes
  • 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 CODOG: 2 × Rolls-Royce Olympus gas turbines, 4 × MTU diesels COGOG on 2 shafts; 2 × Tyne cruise turbines: 8,500 shp (6,300 kW); 2 × Olympus boost turbines: 50,000 shp (37,000 kW)
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Frequently Asked Questions

Which has greater displacement, the Niterói-class or Type 21-class?
The Niterói-class has greater displacement at 3,355 tons compared to the Type 21-class's 3,250 tons.
Which is faster, the Niterói-class or Type 21-class?
The Type 21-class is faster with a maximum speed of 37 knots compared to the Niterói-class's 30 knots.
Which has longer range, the Niterói-class or Type 21-class?
The Niterói-class has a longer range at 5,300 nautical miles compared to the Type 21-class's 4,000 nautical miles.
Which is longer, the Niterói-class or Type 21-class?
The Niterói-class is longer at 129.2 meters compared to the Type 21-class's 117.0 meters.
How many crew members do the Niterói-class and Type 21-class have?
The Niterói-class has a larger crew complement of 217 compared to the Type 21-class's 177 crew members.
Which has been built in greater numbers, the Niterói-class or Type 21-class?
The Type 21-class has been built in greater numbers with 8 vessels compared to 7 vessels of the Niterói-class.