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Hydra vs Niterói

Hydra vs Niterói at a glance — displacement 4,000 vs 3,355 tons, length 117 vs 129 m, speed 31 vs 30 knots, crew 173 vs 217.

Specifications
Hydra Niterói
Origin 🇬🇷 Greece 🇧🇷 Brazil
Category Frigate Frigate
Type Frigate Frigate
Manufacturer Blohm + Voss Vosper Thornycroft
Year introduced 1992 1976
Number built 4 units 7 units
Estimated unit price NA NA
Displacement 4,000 tons 3,355 tons
Maximum speed 31.0 knots 30.0 knots
Range 4,100 nm at 18 knots 5,300 nm at 19 knots
Length 117.5 m 129.2 m
Beam 14.8 m 13.5 m
Crew 173 217
Performance Radar Chart
Armament & Systems
Hydra Niterói
Armament
  • 1× Mk 45 Mod 2A 5" gun
  • 2× Mk15 Phalanx 20 mm CIWS
  • 2 Mk141 2×4 Harpoon missile launchers
  • Mk 48 Mod 2 vertical launcher for 16× RIM-162 ESSM
  • 2 Mk32 Mod 5 2×324mm T/T for Mk46 torpedoes

• 1 × 114 mm Mk 8 gun • Aspide SAM • Exocet missiles • Mk 46 torpedoes
Propulsion 2 shaft CODOG, controllable pitch propellers, 2 General Electric LM2500 gas turbines 60,656 hp (45,231 kW), 2 MTU 20V 956 diesel engines, 10,040 hp (7,490 kW) CODOG: 2 × Rolls-Royce Olympus gas turbines, 4 × MTU diesels
Explore further
Hydra-class Specs, operators & history →
Largest operators · in service
Niterói-class Specs, operators & history →
Largest operators · in service
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Frequently Asked Questions

Which has greater displacement, the Hydra-class or Niterói-class?
The Hydra-class has greater displacement at 4,000 tons compared to the Niterói-class's 3,355 tons.
Which is faster, the Hydra-class or Niterói-class?
The Hydra-class is faster with a maximum speed of 31 knots compared to the Niterói-class's 30 knots.
Which has longer range, the Hydra-class or Niterói-class?
The Niterói-class has a longer range at 5,300 nautical miles compared to the Hydra-class's 4,100 nautical miles.
Which is longer, the Hydra-class or Niterói-class?
The Niterói-class is longer at 129.2 meters compared to the Hydra-class's 117.5 meters.
How many crew members do the Hydra-class and Niterói-class have?
The Niterói-class has a larger crew complement of 217 compared to the Hydra-class's 173 crew members.
Which has been built in greater numbers, the Hydra-class or Niterói-class?
The Niterói-class has been built in greater numbers with 7 vessels compared to 4 vessels of the Hydra-class.