HMAS Orion

HMAS Orion (S 61) was an Oberon class submarine of the Royal Australian Navy (RAN). One of six submarines ordered by the RAN during the 1960s, Orion, named after the constellation in a break from ship-naming tradition, was built in Scotland and commissioned in 1977. Orion was one of two Oberon-class submarines designed for intelligence gathering and conducted regular patrols in Soviet, Indian and Chinese waters to gather information regarding enemy capabilities.

History
Australia
NamesakeThe constellation Orion
BuilderScotts Shipbuilding and Engineering Company
Laid down6 October 1972
Launched16 September 1974
Commissioned15 June 1977
Decommissioned4 October 1996
HomeportHMAS Platypus, New South Wales
Motto
  • Orbe Circumcincto
  • Latin: "All around the world"
FateSold for scrap 2006
General characteristics
Class and typeOberon class submarine
Displacement
  • 1,610 tons standard
  • 2,030 tons surfaced
  • 2,410 tons submerged
Length295.2 ft (90.0 m)
Beam26.5 ft (8.1 m)
Draught18 ft (5.5 m)
Propulsion
  • 2 × Admiralty Standard Range supercharged V16 diesel generators
  • 2 × English Electric motors
  • 3,500 bhp, 4,500 shp
  • 2 shafts
Speed
  • 12 knots (22 km/h; 14 mph) surfaced
  • 17 knots (31 km/h; 20 mph) submerged
  • 11 knots (20 km/h; 13 mph) at snorkel depth
Range9,000 nautical miles (17,000 km; 10,000 mi) at 12 knots (22 km/h; 14 mph)
Test depth200 metres (660 ft)
Complement
  • As launched:
  • 8 officers, 56 sailors
  • At decommissioning:
  • 8 officers, 60 sailors
Sensors and
processing systems
  • Sonar:
  • Atlas Elektronik Type CSU3-41 bow array
  • BAC Type 2007 flank array
  • Sperry BQG-4 Micropuffs rangefinding array
  • Sonartech PIPRS intercept processor
  • Radar:
  • Kelvin Hughes Type 1006
Electronic warfare
& decoys		Telegon radar and communications intercept
Armament
  • Torpedo tubes:
  • 6 × 21-inch (53 cm) bow tubes
  • 2 × short-length 21-inch (53 cm) stern tubes (later removed)
  • 1996 payload: Mix of 20:
  • Mark 48 Mod 4 torpedoes
  • UGM-84 Sub Harpoon missiles
Notes=

Orion was decommissioned in 1996, marked for disposal in 2003, and broken up for scrap in 2006. Several sections of the submarine remain intact as memorials and museum pieces.

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