The ''Capitan O'Brien'' class were three submarines built for the

Chilean Navy The Chilean Navy ( es, Armada de Chile) is the naval warfare service branch of the Chilean Armed Forces. It is under the Ministry of National Defense. Its headquarters are at Edificio Armada de Chile, Valparaiso. History Origins and the War ...

in the late 1920s. They were similar to the contemporary British s, but mounted a larger /45 deck gun and were slightly smaller.

Ships

All boats were built by

Vickers Vickers was a British engineering company that existed from 1828 until 1999. It was formed in Sheffield as a steel foundry by Edward Vickers and his father-in-law, and soon became famous for casting church bells. The company went public i ...

Barrow-in-Furness Barrow-in-Furness is a port town in Cumbria, England. Historic counties of England, Historically in Lancashire, it was incorporated as a municipal borough in 1867 and merged with Dalton-in-Furness Urban District in 1974 to form the Borough of B ...

and commissioned in 1929. The builder's photograph of the ''Simpson'' gives the dimensions as overall × × , surface speed surfaced and submerged. The two s purchased by Chile in the 1970s were also known locally as the ''O'Brien'' class.

References

Cited works

*'' Conway's All the World's Fighting Ships 1922-1946'' * {{Chilean submarines Submarine classes