Brazilian submarine Riachuelo (S22)

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

For other ships with the same name, see Brazilian ship Riachuelo.

Riachuelo (S22)
History
 Brazil
Name: Riachuelo
Namesake: Battle of Riachuelo
Ordered: 1972
Builder: Vickers Shipbuilding and Engineering, Barrow, England
Launched: 6 September 1975
Commissioned: March 1977
Decommissioned: 1997
Status: Museum ship
General characteristics
Class and type: Oberon-class submarine
Displacement:
  • Surfaced 2,030 tons
  • Submerged 2,410 tons
Length: 295.2 ft (90.0 m)
Beam: 26.5 ft (8.1 m)
Draught: 18 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)
Range: 9,000 nmi (17,000 km; 10,000 mi) at 12 kn (22 km/h; 14 mph) surfaced
Complement: 6 officers, 64 ratings
Armament: 8 × 21 in (533 mm) torpedo tubes (6 bow, 2 stern)
Notes: given a mid-life modernisation in 1995 by the company HDW/FERROSTAL

Design and construction
Main article: Oberon-class submarine

Riachuelo was ordered in 1972, separately from her two sister boats.[1] The submarine, built by Vickers Shipbuilding and Engineering at their shipyard in Barrow, was laid down on 26 May 1973, and launched on 6 September 1975.[1] She was commissioned into the Brazilian Navy in early 1977.[1]

Decommissioning and fate

Riachuelo was decommissioned in 1997.[2] She is now displayed at the Navy Cultural Centre in Rio de Janeiro.

References
  1. Moore, John, ed. (1977). Jane's Fighting Ships 1977-78. Jane's Fighting Ships (80th ed.). London: Jane's Yearbooks. p. 44. ISBN 0531032779. OCLC 18207174.
  2. Sharpe, Richard, ed. (1998). Jane's Fighting Ships 1998-99. Jane's Fighting Ships (101st ed.). Coulsdon, Surrey: Jane's Information Group. p. 57. ISBN 071061795X. OCLC 39372676.


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