Capitan O'Brien-class submarine (1928)

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 - 2750 hp
    • Electric motors - 1300 hp
Speed:Surfaced - 15 knots Submerged - 9 knots
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

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