Capitan O'Brien-class submarine (1928)

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Class overview
Builders: Vickers
Operators:  Chilean Navy
In commission: 1929–1958
Completed: 3
Retired: 3
General characteristics
Displacement:
  • Surfaced - 1540 tons
  • Submerged - 2020 tons
Length: 260 ft (79 m)
Beam: 28 ft (8.5 m)
Draught: 13 ft 6 in (4.11 m)
Propulsion:
  • 2 shaft diesel electric
    • Vickers diesels: 2,750 hp (2,050 kW)
    • Electric motors: 1,300 hp (970 kW)
Speed:
  • Surfaced: 15 kn (28 km/h; 17 mph)
  • Submerged: 9 kn (17 km/h; 10 mph)
Crew: 54
Armament:

Eight 21in torpedo tubes (6 bow, 2 stern 14 torpedoes)

1 - 4.7 in deck gun

The Capitan O'Brien class were three submarines built for the Chilean Navy in the late 1920s. They were similar to the contemporary British Odin class submarines, but mounted a larger 4.7 inch deck gun and were slightly smaller.

Ships[edit]

All boats were built by Vickers in Barrow-in-Furness and commissioned in 1929

Ship Launched Decommissioned
Almirante Simpson, named after Robert Winthrop Simpson 15 January 1928 1957
Capitan O'Brien 2 October 1928 1957
Capitan Thompson 15 January 1929 1958

The two Oberon class submarines purchased by Chile in the 1970s were also known locally as the O'Brien class.

References[edit]

  • Conway's All the World's Fighting Ships 1922-1946