Modified Dido Class, British Antiaircraft Cruisers

Photograph of modified Dido class cruiser

Imperial War Museum #A-19851. Via Wikipedia Commons


Tonnage 5950 tons standard
Dimensions 512'2" by 50'6" by 17'9"
156.11m by 15.39m by 5.41m
Maximum speed     
32 knots
Complement 530
Armament 4x2 5.25"/50 dual-purpose guns
3x4 2pdr AA guns
6x2 20mm Oerlikon AA guns
2x3 torpedo tubes
Protection 670 tons:
3" (76mm) NC belt
1" (25mm) D steel deck over machinery
2" (51mm) D steel deck over shell rooms
3" (76mm) NC deck over magazines
0.75" (19mm) D steel magazine side and bridge
4-shaft Parsons geared turbine (62,000 shp)
4 Admiralty 3-drum boilers
Bunkerage 1100 tons fuel oil
Range 7400 nautical miles (14,300 km) at 12 knots
Most units had radar by fall of 1941. This was typically Type 279 or better.
Some units completed with only 4 5.25" turrets due to shortages.

Light antiaircraft armament steadily increased. By 1944 some units had as many as 3x4 40mm Bofors AA guns and 6x2, 4x1 20mm guns.

The modified Didos incorporated extensive redesigns to the original Dido design based on wartime experience. The omission of one of the 5.25" gun turrets allowed greater light antiaircraft armament and an improved arrangement of the bridge and superstructure, including flag quarters. Splinter shielding was added to the magazines and bridge.

Units in the Pacific:

Royalist arrived 1944-9?
Black Prince     
arrived 1944-9


Whitley (1995)

Worth (2001)

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