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Warships1976–present
Frigate
Niterói-class frigate is a frigate. It was built by Vosper Thornycroft Rio de Janeiro Navy Arsenal. Reported operators include Brazilian Navy.
United KingdomNiterói-class frigate
Marinha do Brasil · CC BY-SA 4.0 · Resized · CC BY-SA 4.0 · Source ↗ · ModifiedNiterói class, Mk10
Vosper Thornycroft Rio de Janeiro Navy Arsenal
Brazilian Navy
Tamandaré class
1972–1986
1976–present
7
6
1
Frigate
3,355 t (3,302 long tons )
129.2 m (423 ft 11 in)
13.5 m (44 ft 3 in)
5.5 m (18 ft 1 in)
Combined diesel or gas , two shafts 2 × Rolls-Royce Olympus TM-3B gas turbines 42000 kW (56000 hp ) combined 4 × MTU 16V 956 TB91 diesel engines 13000 kW (17000 hp ) combined
30 knots (56 km/h; 35 mph) (maximum) 22 knots (41 km/h; 25 mph) (diesels only)
5,300 nmi (9,800 km; 6,100 mi)
45 days
217
Modernized; Alenia RAN-20S air search radar Terma Scanter surface search radar Orion RTN-30X fire control radar Saab EOS-400 optronic director Krupp Atlas EDO-610E hull mounted sonar SICONTA Mk 2 C3I system
Modernized; Cutlass B1W ESM ET/SQL-1 ECM 12 × 102 mm decoy launchers
Modernized; 1 × Albatros launcher for 8 Aspide surface-to-air missiles 1 × 113 mm Mark 8 gun 2 × Bofors 40 mm guns 2 × twin launchers for Exocet anti-ship missiles 2 × triple torpedo tubes for Mark 46 torpedoes 1 × double-barrel Bofors Boroc anti-submarine rockets
Westland Super Lynx Mk.21B helicopter
Helipad and hangar
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Reference text from Wikipedia contributors, used under CC BY-SA 4.0.
True scale
Sourced dimensions beside a 1.75 m human reference.
Points represent sourced observations, including revisions. Revisions on the same effective date are not separate inventory events. Ranges appear in the table and are not plotted as exact points.
| Observation / report period | Value | Source | Claim state |
|---|---|---|---|
| 28 Sept 2026 | 129.2 m | Wikipedia contributors | superseded |
| 28 Sept 2026 | 129.2 m | Wikipedia contributors | approved |
Niterói-class frigate equipment records. Variants, orders and quantities are shown as reported in each inventory source; coverage is incomplete.
BrazilNavy exact named class holdings of Niteroi. Active, operational-reserve and training units excluding equipment in store; November 2025 IISS assessment. Named service only, not a national or parent-force total or combat-readiness measure. Source role(s): PRINCIPAL SURFACE COMBATANTS / None. No heading aggregate, carried armament, crew, payload, factory production or future order count inherited. The own fetched design source declares this exact class and its PDF operator country; ship capacities and fitted launcher/armament counts are retained as source scope, not added to hull quantities.
Reported count for Niterói Type 21 / Niterói. Service scope: Brazilian Navy ships; does not replace a national total. 2 distinct count cell(s) from the same source list; shared rowspan cells counted once. Excludes retired/reserve/on-order rows. Count column(s): quantity: 5 / quantity: 1. Origin: Brazil United Kingdom. The listed variants/roles are the scope, not an immediately deployable count. The components do not establish one inventory census date; the stored date is the retrieved source snapshot.