João Belo-class frigate

	NRP Comandante João Belo
Class overview
Name	João Belo class
Builders	AC de Nantes, France
Operators	Portuguese Navy; National Navy of Uruguay;
Preceded by	Almirante Pereira da Silva class
Succeeded by	Bartolomeu Dias class
In commission	1967–2022
Completed	4
Retired	4
Scrapped	3
General characteristics as built
Type	Frigate
Displacement	1,780 t (1,750 long tons); 2,290 t (2,250 long tons) full load;
Length	102.7 m (336 ft 11 in)
Beam	11.7 m (38 ft 5 in)
Draught	4.4 m (14 ft 5 in)
Installed power	4 diesel engines SEMT Pielstick V12 PC 16,000 bhp (12,000 kW)
Propulsion	2 shafts
Speed	26.6 knots (49.3 km/h; 30.6 mph) max
Range	4,500 nmi (8,300 km; 5,200 mi) at 15 kn (28 km/h; 17 mph)
Complement	214
Sensors and ; processing systems	DRBV22A sentry radar; DRBC31D fire control radar; DRBV50 surface search; DUBA3 sonar; SQS17 sonar;
Electronic warfare ; & decoys	ARBR10 radar detector
Armament	3 × single 100 mm (3.9 in) guns; 2 × 40 mm (1.6 in) guns; 1 × 305 mm (12 in) anti-submarine mortar; 2 × triple 550 mm (22 in) torpedo tubes;

The João Belo class, also known as Comandante João Belo class, is a class of four frigates of French design, based on the Commandant Rivière class but fitted for tropical service. Ordered by the Portuguese Navy in 1964, the four ships of this class were constructed at the shipyard in Nantes, France between 1965 and 1967. The first ship entered Portuguese service in 1967. The frigates were used for ocean patrol of Portuguese colonies and later, joined NATO's STANAVFORLANT unit. The first unit was discarded in 2003, followed by a second in 2004. The final two ships were taken out of service in 2008 sold to the Uruguayan Navy. The third ship was discarded in 2021, and the last ship was decommissioned on 12 August 2022.

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