Currently 3 ships have been decommissioned, only 2 remaining, the Júlio de Noronha V-32 and the Barroso V-34.
The Brazilian Navy operates a class of multipurpose corvettes, the Inhaúma class, for anti-submarine warfare (ASW) and anti-surface warfare (ASuW) missions. It was originally planned to build 12 to 16 ships but the economic situation in Brazil did not permit this and only five vessels were built between 1986–2002. Currently 3 ships have been decommissioned, only 2 remaining, the Júlio de Noronha V-32 and the Barroso V-34.
The Inhaúma class were initially designed as small frigates by the Brazilian Naval Design Office with assistance from the West German company Marine Technik. The design incorporates flush decked hull and conventional layout. It has a full load displacement of about 2,000 tons, an overall length of 95.8m, beam of 11.4m and draft of 5.3m. Inhaúma can complement a crew of 122 members.
The vessels in the class are powered by a combined diesel or gas system composed of one GE LM 2500 gas turbine rated at 20,500 kilowatts (27,500 hp) and two MTU 16 V 396 TB 94 diesel engines rated at 5,800 kW (7,800 bhp) turning two shafts. This gives the Inhaúma class a maximum speed of 27 knots (50 km/h; 31 mph) and a range of 4,000 nautical miles (7,400 km; 4,600 mi) at 15 knots (28 km/h; 17 mph).
The class is armed with four Exocet surface-to-surface missiles (SSM) placed centrally and a Mk 8 114 mm gun situated forward. They are equipped with two Bofors 40 mm anti-aircraft guns in a twin mount atop the aft superstructure. For anti-submarine warfare, the vessels mount Mk 32 324 mm torpedo tubes in two triple mounts sited on either side of the superstructure for Mk 46 torpedoes.
A helipad at the stern accommodates a Westland Super Lynx helicopter. The helicopter can be equipped with Sea Skua lightweight short-range air-to-surface missiles, Mk-46 torpedoes and Mk-9 depth bombs.
For sensors the Inhaúma class are fitted with Plessey AWS-4, Kelvin Hughes Type 1007 and Selenia Orion RTN 10X radar and Krupp Atlas ASO4 Mod 2 sonar. The electronic countermeasures equipment includes a radar interceptor and a jammer. The corvette is fitted with two Plessey Shield chaff launchers firing chaff and infrared flares in distraction, decoy or centroid modes.
The last one of the class, the Barroso (V-34), was laid in December 1994. It was launched in December 2002 and commissioned in August 2008. Barroso is equipped with a new fire control system and improved electronic warfare and countermeasures equipment. Around 57% of the onboard systems were developed indigenously.