Mato Grosso-class destroyer

	Rio Grande do Norte
Class overview
Name	Mato Grosso class
Builders	Federal Shipbuilding and Drydock Company; Bethlehem Steel; Bethlehem Shipbuilding Corporation;
Operators	Brazilian Navy
Preceded by	Pará class
Succeeded by	Marcílio Dias class
Built	1943–1946
In commission	1972–1996
Planned	5
Completed	5
Retired	5
General characteristics
Type	Destroyer
Length	376 ft 6 in (114.76 m)
Beam	40 ft (12 m)
Draft	15 ft 8 in (4.78 m)
Propulsion	60,000 shp (45,000 kW); 2 shafts;
Speed	34 kn (63 km/h; 39 mph)
Range	6,500 nmi (12,000 km; 7,500 mi) at 15 kn (28 km/h; 17 mph)
Complement	331 (D34); 291 (D35-38);
Sensors and ; processing systems	1 × AN/SPS-29 air-search radar (D38); 1 × AN/SPS-6 air-search radar (D34); 1 × AN/SPS-40 air-search radar (D35-37); 1 × AN/SPS-10 surface-search radar; 1 × AN/SQS-44 sonar (D34 and 36-37); 1 × AN/SQS-29 sonar (D35 and 38); 1 × Mark 25 Director (D34); 1 × Mark 20 Director (D35-38);
Electronic warfare ; & decoys	1 × AN/WLR-1 ECM; 1 × AN/ULQ-6 ECM;
Armament	D34:; 3 × twin 5"/38 cal guns; 2 × triple Mark 46 torpedo tubes ; 2 × Mark 10 Hedgehog mortars; 1 × Seacat SAM; 1 × depth charge track; D35-38:; 3 × twin 5"/38 cal guns; 2 × triple Mark 46 torpedo tubes ; 2 × Mark 10 Hedgehog mortars;
Aircraft carried	1 × Westland Wasp
Aviation facilities	Single hangar and helipad (D35-38)

The Mato Grosso-class destroyer is a class of destroyers of the Brazilian Navy. Seven ships of the Allen M. Sumner class were lent by the United States Navy and were in commission from 1972 until 1996.

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