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O'Brien (Oberon) class patrol submarines

The O'Brien class consisted of a pair of Oberon-class patrol submarines built in the UK for Chile. Sister ship Hyatt discarded first, then O'Brien.


Ship List
Name # Port Laid
Launch Comm Decomm Notes
S22 O'Brien 1976
# Hyatt 19

Displacement, full 2,450 tons
Displacement, light tons
GT (Gross Tonnage) tons
NT (Net Tonnage) tons
DWT (Deadweight) tons
Length, O/A 90 (295.2 feet)
Length, W/L meters / feet
Length, B/P meters / feet
Max Beam8.1 meters (26.5 feet)
Draft 5.5 meters (18.1 feet)
Height meters / feet
Propulsion Type diesel electric
Engines2 diesels
Number of Main Engine(s)
Main Engine builder
Main Model
Main RPM
Main power 6,000 shp
Propeller(s) 2 shafts
Speed, maximum 17.5 knots
Speed, Cruise Knots
Range nautical miles at knots
Stores endurance days
Electronics Sonar:
  • Atlas Elektronik CSU 90 suite,
  • BAC Type 2007 flank array
  • Weapons Systems 6 21 inch torpedo tubes, 22 torpedoes
    Aviation none

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    Page last modified: 04-12-2012 19:02:19 ZULU