HMS Adamant (1940)

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HMS Adamant
Career RN Ensign RFA Ensign
Ordered: 1 March 1939
Builder: Harland and Wolff, Belfast
Laid down: 18 May 1939
Launched: 30 November 1940
Commissioned: 28 February 1942
Struck: March 1966
Status: Broken up September 1970 at Inverkeithing
General Characteristics
Displacement: 12,500 tons (12,700 metric tonnes) unloaded
16,500 tons (16,765 metric tonnes) loaded
Length: 189 m (pp) 200.5 m (oa)
Beam: 21.5 m
Draught: 5.5 m full load
Propulsion: 8,000 SHP geared turbines
Speed: 17 knots maximum
Complement: 1273
Armament: 8 x 4.5" DP Guns (in pairs)
16 x 2pdr AA (in fours)
8 x 20mm AA (singles)
8 x 0.5" AA (in fours)
Carried in store 117 21" torpedoes
Armour: 1 inch torpedo bulkhead, 2 inch armoured deck
Motto: Lead On

HMS Adamant was a World War II submarine depot ship.

Completed in 1942 she served in the Eastern Fleet (Colombo/Trincomalee) with 4th SM Flotilla (comprising 9 T-class boats) from April 1943 until April 1945 and then serviced her flotilla at Fremantle, Australia. 1950-1954 Flagship of Senior Officer, Reserve Fleet, Portsmouth.

Commissioned as depot ship to the 3rd Submarine Squadron, she was stationed at Rothesay Bay between October 1954 and October 1957. She then moved to Faslane further up the Clyde on Gare Loch (1959 - 1962) - ending the permanent RN presence at Rothesay. In 1963 all her original guns were removed and replaced by 2 quadruple and 2 twin Bofors 40 mm gun mounts.[1] In early 1964, she went to Devonport for the 2nd Submarine Squadron.

Listed for disposal March 1966 and arrived Inverkeithing September 1970 to be broken up.

Adamant was capable of servicing up to 9 submarines concurrently (as well as accommodating their crew). Facilities included a foundry, light and heavy machine shops, electrical and torpedo repair shops and equipment to support fitters, patternmakers, coppersmiths and shipwrights.

Her design included a 1" thick torpedo bulkhead 10 feet inboard and the middle deck was protected by 2" thick steel armour.

After the war, the number of technical staff required onboard meant that only 6 submarines could be serviced at a time.

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[edit] Footnotes

  1. ^ Janes Fighting Ships 1965