Niterói vs Type 21

Niterói

Brazilian frigate, 3,355 tons displacement, propelled by CODOG system.
Origin	🇧🇷 Brazil
Category	Frigate
Type	Frigate
Manufacturer	Vosper Thornycroft
Year introduced	1976
Number built	7 units
Estimated unit price	NA

British frigate, 3,250 tons displacement, propelled by COGOG arrangement for a top speed of 37 knots.
Origin	🇬🇧 United Kingdom
Category	Frigate
Type	Frigate
Manufacturer	Yarrow Shipbuilders
Year introduced	1974
Number built	8 units
Estimated unit price	$60 million

Displacement	3,355 tons ◉
Maximum speed	30.0 knots ◉
Range	5,300 nm at 19 knots ◉
Length	129.2 m ◉
Beam	13.5 m ◉
Crew	217 ◉
Propulsion	CODOG: 2 × Rolls-Royce Olympus gas turbines, 4 × MTU diesels
Armament	• 1 × 114 mm Mk 8 gun • Aspide SAM • Exocet missiles • Mk 46 torpedoes

Displacement	3,250 tons ◉
Maximum speed	37.0 knots ◉
Range	4,000 nm at 1200 knots ◉
Length	117.0 m ◉
Beam	12.7 m ◉
Crew	177 ◉
Propulsion	COGOG on 2 shafts; 2 × Tyne cruise turbines: 8,500 shp (6,300 kW); 2 × Olympus boost turbines: 50,000 shp (37,000 kW)
Armament	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

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.