Editing Fiji-class cruiser (section)

==Modifications==
The addition of [[radar]] sets meant that spotting aircraft were now surplus to requirements,{{citation needed|date=February 2012}}<!--of no value in locating targets over the horizon...?--> allowing the removal of the aircraft facilities and [[Aircraft catapult#Interwar and World War II|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, {{HMS|Liverpool|C11|2}} had her [[Bow (ship)|bow]] 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'' had 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 AA weapons, a quadruple [[QF 2 pounder naval gun|QF 2&nbsp;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 two and four single pom-poms in powered mountings Mark XV. In ''Kenya'', all pom-poms were removed, and were replaced with five twin and eight single [[Bofors 40 mm Automatic Gun L/60|40&nbsp;mm Bofors guns]]. By the end of the war, ''Newfoundland'' had one and ''Uganda'' had two American pattern quadruple 40&nbsp;mm Bofors mounts Mark III and ''Nigeria'' had four single mounts Mark III. Generally, 6 to 24 [[Oerlikon 20 mm cannon|20&nbsp;mm Oerlikon guns]] were also added in a mixture of single mounts Mark IIIA and twin powered mounts Mark V.

Postwar modifications of the class were very limited with improved Type 274 lock and follow surface fire control. ''Newfoundland'' had a fragile and unreliable 'glasshouse' version of Type 275 for twin 4-inch control,<ref group=note>The same was fitted to HMS ''Superb'' and ''Swiftsure''{{cn|date=April 2023}}</ref> ''Ceylon'' had the short range type 262 MRS1 AA control which was limited to about {{convert|4|km|abbr=on}} range for tracking. ''Bermuda'' and  ''Gambia'' had much more advanced US Mk 63 radar with four High Angle [[Glossary of British ordnance terms#DCT|Director-Control Tower (DCT)]] and separate radar disks on the mounts themselves<ref>{{cite magazine|title=Last of the Colony cruisers |magazine=[[Ships Monthly]] |date=March 2016 |page=40}}</ref><!-- as in US cruiser secondary and tertiary 5- and 3-inch mounts --> using systems that were released by the cancellation of {{HMS|Vanguard|23|6}}'s 1955 long refit. Slightly improved new versions of the basic twin 4-inch gun mounts were generally fitted in extended refits in 1950; these had electric drive and could train and elevate at 20 degrees/sec to track subsonic jets.

US advice and offers under mutual assistance to replace the obsolete and inaccurate 4-inch guns with twin 3-inch 50-calibre turrets of similar weight and dimensions as the RN twin 4-inch Mark XIX turrets were rejected because the RN had huge stocks of 4-inch shells.{{cn|date=April 2023}} These ships would have been altered for water sprays to wash off [[nuclear fallout]] and received the Type 960 standard long-range air search radar. ''Newfoundland'' received a greater extent of electrical updating and rewiring with more comprehensive AA fire control and was the only ''Fiji''-class vessel updated close to the standard planned for the improved {{sclass|Dido|cruiser|0}} ships. The ''Fiji'' class were only refitted for shore bombardment and colonial patrol and presence. The mid-1950s refits of ''Ceylon'', ''Gambia'' and ''Bermuda'' were very austere. They included  increasing automation, the life of the geared steam turbines, and reducing manning below decks. There was simplification of the short range anti-aircraft defence to six to eight twin L/60 Bofors in Mk 5 twin mountings with a fire rate increased to 150&nbsp;rpm per gun (280–300&nbsp;rpm for each twin mounting). These would have stopped earlier WWII low-level or later [[Falklands War]]-type attacks, by which time the RN no longer fitted 40&nbsp;mm, the last were withdrawn with {{HMS|Bulwark|R08|6}} in 1981.{{citation needed|date=December 2020}}