HMS Nigeria |
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Class overview | |
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Name: | Crown Colony |
Operators: | Royal Navy Royal Canadian Navy Indian Navy Peruvian Navy |
Preceded by: | Dido class |
Succeeded by: | Minotaur class |
Subclasses: | Fiji Ceylon |
Completed: | Eleven |
Lost: | Two |
General characteristics | |
Class and type: | light cruiser |
Displacement: | 10,725 tons full load (Ceylon class: 10,840 tons full load) |
Length: | 555 ft 6 in (169.32 m) overall |
Beam: | 62 ft (19 m) |
Draught: | 16 ft 6 in (5.03 m) |
Propulsion: | Four Admiralty 3-drum boilers Four Parsons geared steam turbines Four shafts 72,500 shp (54 MW) (Ceylon group; 80,000 shp (60 MW)) |
Speed: | 31.5 knots (Ceylon group; 32 knots) |
Range: | 10,100 nm (18,700 km) at 12 knots (22 km/h) |
Complement: | 730 |
Armament: | Fijigroup:
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Aircraft carried: | Two Supermarine Walrus aircraft (removed by 1944, never fitted in Fiji or Kenya) |
The Crown Colony-class light cruisers of the Royal Navy were named after Crown Colonies of the British Empire. The first eight are known as the Fiji class, while the last three to be built are commonly referred to as the Ceylon class and were built to a slightly modified design.
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They were built due to the limitations that the Second London Naval Treaty imposed on cruisers, which lowered the Washington limit of 10,000 tons to 8,000 tons, and were basically smaller derivatives of the Town-class cruiser. The armour scheme was revised from that of the Towns, in that the main belt now protected the 6 inch ammunition spaces, although the belt itself was reduced to 3.5 inches here and 3.25 inches at the machinery spaces. The 6 inch Mk XXIII turrets and ammunition spaces were laid out as per the Edinburgh group of the Town class, except the after turrets were a deck lower as in the Southampton and Gloucester groups. The supply of ammunition to the 4-inch (102 mm) guns was also improved, dispensing with the complicated conveyor system. The Crown Colonys were instantly recognisable as they had a transom stern and straight funnels and masts; those of the Towns being raked. Due to the size of the Crown Colony class, a number of the ships had their 'X' turret removed to allow the shipping of additional light anti-aircraft guns. Ships of the Fiji group were equipped with the HACS AA fire control system for the secondary armament while the Ceylon group used the Fuze Keeping Clock for AA fire control and both groups used the Admiralty Fire Control Table for surface fire control of the main armament, and the Admiralty Fire Control Clock for surface fire control of the secondary armament. [1]
The addition of radar sets meant that the aircraft were now surplus to requirements, allowing the removal of the aircraft and catapult. Not only did this provide additional accommodation spaces for enlarged wartime crews, but there was no longer the need to carry large quantities of volatile aviation fuel; in 1940, Liverpool had her bows blown off when a torpedo detonated the 5,700 gallons of aviation fuel stored forwards and was out of action for a year. Fiji and Kenya never received the catapult, Nigeria had hers removed in 1941 and the other ships had theirs removed between 1942 and 1944.
The Ceylon group were completed without 'X' 6 inch turret, and between 1944 and 1945, those of Bermuda, Jamaica, Mauritius and Kenya were also removed. This allowed the carriage of additional light A/A weapons, a quadruple QF 2 pdr pom-pom mounting Mark VII generally being carried in 'X' position. Bermuda, Jamaica and Mauritius had 2 additional quadruple pom-poms added (for a total of five) and between 2 and 4 single pom-poms in powered mountings Mark XV. In Kenya, all pom-poms were removed, and were replaced with 5 twin and 8 single 40 mm /60 Bofors A/A. By the end of the war, Newfoundland had one and Uganda had 2 American pattern quadruple 40 mm /60 Bofors mounts Mark III and Nigeria had 4 single mounts Mark III. Generally, 6 to 24 20 mm Oerlikon guns were also added in a mixture of single mounts Mark IIIA and twin powered mounts Mark V.
They served with distinction during the Second World War, losing Fiji in 1941, and Trinidad the following year. They continued in service after the war, taking part in further actions, such as the Korean War. Ceylon was later sold to Peru, being renamed Coronel Bolognesi, along with Newfoundland, which was renamed Almirante Grau. The ship was decommissioned in 1982. Nigeria was also sold, to India, being renamed INS Mysore. The ship was scrapped in 1985, an astonishingly long time since her launch in the late 1930s.
All ships of the Crown Colony-class were decommissioned from the Royal Navy by the late 1960s, though none of them were the last cruisers of the Royal Navy. That honour went to Blake, a modified Tiger-class cruiser, which was decommissioned in 1980, seemingly the last ever cruiser to be in the Royal Navy.
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