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 class of offshore patrol vessels planned for the Brazilian Navy by EMGEPRON. Eleven units are planned with three in the mine countermeasures version. All the vessels are planned to be delivered 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.