Length: 290ft (90m)
Width: 26ft (8.1m)
Draft: 16 ft (5m)
Displacement: 2,410 tons
Range: 9,000 miles
Compliment: 68 men
Speed submerged: 17knots (20 mph)

Chatham Historic Dockyard Trust
The Historic Dockyard
Kent, ME4 4TZ
United Kingdom
Tel: 44 163 482 3800 (int.), 0163 482 3800 (UK)
Fax: 44 163 482 3801 (int.), 0163 482 3801 (UK)
Latitude: 51.395511, Longitude: 0.526614
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HM Submarine Ocelot was laid down at Chatham Dockyard on the 17th of November 1960. She was launched two years later in May 1962 from No. 7 Slip. Significantly Ocelot was the last submarine to be built in Chatham Dockyard for the Royal Navy. Ocelot paid off in August 1991 and returned to Chatham Historic Dockyard in 1992.

HMS Submarine Ocelot was one of the thirteen Oberon Class submarines built for the Royal Navy between 1959 and 1964. The Oberon Class were all diesel electric boats which were capable of high underwater speeds of up to 17 knots (20 mph) when submerged. They also carried improved detection equipment over their predecessor, the Porpoise Class, and were armed with homing torpedoes. Additional improvements included the soundproofing of all equipment making the Oberon Class the quietest submarines in existence. As such, their design lent themselves to maintaining continuous submerged patrols performing surveillance and intelligence gathering missions, a role that became vital during the Cold War. O-boats of the Royal Navy were primarily involved in missions across arctic Europe.

The Ministry of Defense has yet to release in-depth papers relating to the specific operations and campaigns that Ocelot was involved in. However the fairly routine navigational records of her logs provide an overall idea of her history. After being commissioned on the 5th of January 1964, Ocelot joined the Third Submarine Squadron based at HMNB Clyde at Faslane. It is known that in the first three years of commission Ocelot sailed over 90,000 miles engaged in exercises and trials around the Clyde and Londonderry areas as well as in the Mediterranean, and in 1965 the Baltic. During the 1960s Ocelot, like many of the other O-Boats, was heavily involved in trailing submarine equipment, acting as a target for aircraft and assisting ship trials and training. Ocelot particularly contributed to important work testing Mark 24 torpedoes. It is also known that Ocelot carried out NATO exercises during this period. On the 24th of July 1968 the submarine was visited at sea by the Ministry of Defense Secretary and the Second Sea Lord who arrived by helicopter, a still unusual and at the time and perhaps a rather pioneering event. Throughout the 1970s exercises took Ocelot further afield, particularly to the Caribbean. One notable incident in Ocelot’s history saw her involved in the salvage of HM Submarine Artemis which famously sunk when moored at the RN submarine base HMS Dolphin in 1971. Although Artemis never returned to service, Ocelot’s crew helped to rescue the 3 ratings trapped onboard and bring the vessel back afloat. HM Submarine Ocelot eventually paid off at Chatham Dockyard in August 1991 having been on active service for the Royal Navy for 27 years.

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