Navio Patrulha de 500 Toneladas

Class overview
Name	Navio Patrulha de 500 Toneladas
Builders	Arsenal de Marinha do Rio de Janeiro
Operators	Brazilian Navy
Preceded by	Macaé class
Cost	US$64 million per ship
Planned	11
General characteristics
Type	Offshore patrol vessel
Tonnage	498  t (490 long tons; 549 short tons)
Length	58.9 m (193 ft 3 in)
Beam	6 m (19 ft 8 in)
Draught	2.5 m (8 ft 2 in)
Speed	22.3 knots (41.3 km/h; 25.7 mph)
Range	3,000  nmi (5,600 km; 3,500 mi) at 15 knots (28 km/h; 17 mph)
Complement	43
Armament	1 × Bofors Mk4 40 mm 2 × Oerlikon GAM-BO1 20 mm
Notes	Sources: [1] [2]

The Navio Patrulha de 500 Toneladas (NPa-500MB) are a planned class of offshore patrol vessels for the Brazilian Navy, to be built under the management of EMGEPRON. A total of eleven units are planned, including three for mine countermeasures. All the vessels are planned for delivery by 2037. ^{[1] [3] [4]}

References

1. "NPa500-BR terá potencial para fornecimento a marinhas de outros países". SINAVAL (in Portuguese). 18 August 2021.
2. "El Pronapa brasileño recibe el Proyecto de Ingeniería Básica para fabricar 11 OPV de 500 toneladas". Infodefensa (in Portuguese). 7 March 2025.
3. "Navio-patrulha de 500 toneladas deverá entrar para o orçamento 2024 – haverá versão de contramedidas de minagem". Poder Naval (in Portuguese). 23 November 2023.
4. "CREDN aprova emendas ao PLOA/2024, destinadas às Forças Armadas e ao Itamaraty". Chamber of Deputies (in Portuguese). 22 November 2023.