OBERON Class  submarine

OBERON Class

Specifications Displacement: 2030 (surfaced) / 2410 (submerged) tons full load    Dimensions: 88.5 x 8.1 x 5.6 meters (290.25 x 26.5 x 18.25 feet) Propulsion: 2 shaft Diesel-electric; 2 Admiralty Standard Range 16 cylinder diesels; 2 English Electric motors, 6000 shp, 12 knots (surface) / 17 knots (submerged) Crew: 71 Aviation Helicopters: None.                                                                                     Surface Action / Undersea Warfare Original: Final: Torpedoes: 6 21" bow torpedo tubes, 2 21" short tubes aft; 30 Mk.8 (unguided) or Mk.20 torpedoes 6 21" bow torpedo tubes; 20 Mk.24 Mod.1 Tigerfish torpedoes Radar: Kelvin Hughes Type 1006 navigation radar Sonar: Types 187 active-passive 2007 passive flank 2019 Type 2051 Plessey Triton active passive (except OTUS, OLYMPUS, and ONYX and possibly others) 2007 passive flank US Type 2024 towed. Fire Control: Ferranti DCH tactical data handling system Air Defence Guns: None.                                                               Missiles: None. Radar: None. Fire Control: None. Electronic Warfare Attack: ESM: MEL Manta UAL or UA4 radar warning (later) ComInt: Ships: Name Pendant  Completed Comments Fate OBERON S 09 1961 Sold to Egypt. ODIN S 10 1962 ORPHEUS S 11 1960 Training boat at HMS DOLPHIN, 1987. OLYMPUS S 12 1962 Sold to Canada as training platform. Proposal for museum in Barrow. OSIRIS S 13 1964 Sold to Canada and cut up for spare parts. Dismantled for spare parts. ONSLAUGHT S 14 1962 OTTER S 15 1962 ORACLE S 16 1963 OCELOT S 17 1964 Museum in Chatham. OTUS S 18 1963 Trialed Sub-Harpoon missiles and USN Mk.48 Mod.3 torpedo. For sale 1990. OPPOSSUM S 19 1964 Trialed Plessey Triton sonar. ONYX (1) To Canada as HMCS OJIBWA OPPORTUNE S 20 1964 ONYX (2) S 21 1967 Laid down for Canada. Only D/E boat to serve in Falklands. Trialed Mk.24 Tigerfish torpedo. Museum in Birkenhead. Photos:  (click on thumbnail for bigger image)    An unidentified member of the class sits alongside. She still has the original bow sonar dome.  M.D. Thomas photo. OPPORTUNE sits in drydock in this photo. The stern fixed (above) and dive (lower) planes can be seen to good effect, along with the openings for the two stern tubes. M.D. Thomas photo. OSIRIS sits alongside. She has received the new Triton sonar, as can be seen by the new streamlined sonar dome at the bow. M.D. Thomas photo. Two unidentified OBERON class subs lie alongside; this is a good study in contrast, as the outside sub has recieved the new Triton sonar, while the inside (background) sub has not. M.D. Thomas photo. ONYX lies alongside the former HMS PLYMOUTH in Birkenhead, England. Both are now museum pieces there. Sandy McClearn photo. The bow of ONYX with the original Type 167 sonar dome installed. Sandy McClearn photo. The forward end of the torpedo compartment on the former HMAS ONSLOW, in Sydney, Australia . A mock torpedo is loaded in Tube 2, as seen with the propeller. Tube 1 is open, with a light shining down it. The lower two tubes were power loaded; the rest were loaded manually. Sandy McClearn photo. The helm on ONSLOW. This is located on the port side of the control room. Sandy McClearn photo. Looking aft from the control room on ONYX, past the radar and snorkel masts. The hatch through to the engine compartment can be seen in the background. Sandy McClearn photo. This is taken from the forward end of the engine compartment on ONYX, looking aft. The oil-water separator is seen to the left of the photo; the submarine's diesel fuel was stored in compartments on the exterior of the pressure hull, and the separator was required to prevent seawater contamination from making it to the engines. Sandy McClearn photo. Looking aft in the engine room, between the two diesel engines. Diesel - Electric submarines typically run off their batteries, located on a lower deck, and use the diesels to charge the batteries. Sandy McClearn photo. The control room on ONYX, looking aft. The attack periscope is in the foreground, with the main periscope in the background. The sonar shack is behind the camera in this view, with the helm out of the shot to the right.

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