Brazilian submarine Riachuelo (S22)

22°54′1.5″S 43°10′28.5″W / 22.900417°S 43.174583°W / -22.900417; -43.174583

Riachuelo (S22)
History
Brazil
NameRiachuelo
NamesakeBattle of the Riachuelo
Ordered1972
BuilderVickers Shipbuilding and Engineering, Barrow, England
Launched6 September 1975
CommissionedMarch 1977
Decommissioned1997
StatusMuseum ship
General characteristics
Class & typeOberon-class submarine
Displacement
  • Surfaced 2,030 tons
  • Submerged 2,410 tons
Length295.2 ft (90.0 m)
Beam26.5 ft (8.1 m)
Draught18 ft (5.5 m)
Propulsion
  • 2 × Admiralty Standard Range 16WS – ASR diesels. 3,680 bhp (2,740 kW)
  • 2 electric generators. 2560 kW. 2 electric motors. 6,000 shp (4,500 kW). 2 shafts
Speed
  • Surface 12 knots (22 km/h; 14 mph)
  • Submerged 17 kn (31 km/h; 20 mph)
Range9,000 nmi (17,000 km; 10,000 mi) at 12 kn (22 km/h; 14 mph) surfaced
Complement6 officers, 64 ratings
Armament8 × 21 in (533 mm) torpedo tubes (6 bow, 2 stern)
Notesgiven a mid-life modernisation in 1995 by the company HDW/FERROSTAL

Riachuelo (S22) was an Oberon-class submarine in the Brazilian Navy.

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