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Diesel-electric submarine S Humaitá (S41)

Diesel-electric submarine S Humaitá (S41) 0Diesel-electric submarine S Humaitá (S41) 1

Classification

Ship class:
Riachuelo-class submarine
Type:
Attack submarine (SSN, SSK)

Basic information

Namesake:
Passage of Humaitá
Operator:
Brazilian NavyBrazilian Navy
Country of build:
Builder:
Itaguaí Construções NavaisItaguaí Construções Navais Naval Group (formerly DCNS)Naval Group (formerly DCNS)
Ordered:
Laid down:
Launched:
Commissioned (service):
Status:
Launched

Ship measurements

Displacement:
1,870 t
Submerged displacement:
2,200 t
Length:
75 m
Beam:
6.2 m
Draft:
5.5 m

Machine

Propulsion:
  • 4 * MTU 12V 396 SE84 diesels
  • 1 * Jeumont-Schneider EPM Magtronic electric 3,909 hp (2,915 kW)
  • 1 * shaft
Speed:
13 knots
Submerged speed:
21 knots
Test depth:
400 m
Range:
6,000 nmi (11,000 km; 6,900 mi) at 8 kn (15 km/h; 9.2 mph)
Submerged range:
550 nmi (1,020 km; 630 mi) at 4 kn (7.4 km/h; 4.6 mph)

Personnel

Complement:
32

Combat assets

Electronics:
  • DCNS Submarine Tactical Information and Command System
  • Thales DR 3000 ESM receiver
  • ITT AR 900
  • TSM 2233 Eledone
  • Safare & S-Cube
  • DCNS Contralto-V
Armament:
  • 6 * 533 mm (21 in) torpedo tubes:
  • 18 * F21 heavy torpedoes or
  • 18 * SM-39 Exocet & MANSUP anti-ship missiles or
  • 30 * naval mines

The S Humaitá (S41) is a Brazilian Riachuelo-class submarine built for the Brazilian Navy by ICN in Itaguaí, and DCNS.

The Brazilian boats are larger in length, tonnage and cargo capacity compared to the original French project. The Brazilian version are 75 m (246 ft 1 in) and 2,000 tons, compared to the original Scorpènes that are 61.7 m (202 ft 5 in) and 1,565 tons.

In 2008, Brazil purchased four enlarged Scorpènes for US$9.9 billion with a total technology transfer agreement and a second agreement to develop the first Brazilian nuclear-powered submarine, Álvaro Alberto. The hull of Riachuelo was laid down at Cherbourg, France on 27 May 2010, and it was jumboized at the Brazilian Navy Shipyard in Itaguaí in late 2012.

The first submarine Riachuelo was launched on 14 December 2018, and began sea trials in September 2019, the Humaitá was launched on 11 December 2020.

The first stage of construction of the Humaitá took place in September 2013 in Brazil, at the headquarters of ICN in Itaguaí, with the cutting of the first steel plates of the structure. At this point, technology transfer from French technicians to Brazilians had already started.

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