page_title: Danae-class cruiser
section_title: Design
hierarchical_section_title: Danae-class cruiser / Design
caption_attribution_description: Right elevation and deck plan diagrams depicting British Danae (or D) class light cruiser. Top diagram shows armour thickness in inches; bottom diagram shows gun and torpedo calibres in inches.
context_page_description: The Danae or D class was a class of light cruiser built for the Royal Navy at the end of World War I which also saw service in World War II.
context_section_description: The Danaes were based on the design of the preceding C class series, but were lengthened by 20 feet (6 m) to allow a sixth 6-inch (152 mm) gun to be worked in between the bridge and the forefunnel. This gave an 'A', 'B', 'P', 'Q', 'X', 'Y' arrangement. Additionally, the twin  torpedo tubes in the C class were replaced by triples, giving the Danaes a total of twelve tubes, the heaviest torpedo armament for a cruiser at the time. Machinery and general layout was otherwise the same as the Ceres group of C-class cruisers. However, Danae, Dauntless and Dragon were ordered before the Capetown group, and therefore did not incorporate the improved bow design of the latter; the C class were very wet forwards, and in the Capetowns sheer was increased forwards into a knuckled "trawler bow". Such was the success of the knuckled bow that it was incorporated into all subsequent British cruisers (except Birmingham of 1935 which was completed without). Despatch and Diomede had their beam increased by ½ foot to increase stability and Dragon and Dauntless were completed with a hangar for a floatplane built into the bridge, the compass platform being on top. Delhi, Dunedin, Durban, Despatch and Diomede were provided with flying-off platforms for a wheeled aircraft aft. Despatch and Diomede were completed with 4 inch anti-aircraft (A/A) guns vis 12 pounder (3 inch) guns in their sisters and Diomede had 'A' gun shipped in a weatherproof housing CP Mark XVI, an encouraging development for gun crews hitherto exposed to the worst of the elements on the fo'c'sle.
caption: Right elevation and deck plan as depicted in Brassey's Naval Annual 1923
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