Editing Renown-class battlecruiser (section)

===Armament===
[[File:HMS Repulse aerial starboard view 1918 labelled guns.jpg|thumb|left|Aerial view of ''Repulse'' in 1918.{{ordered list
| list_style=margin-left:0;
| item_style=list-style-position:inside;
| twin 15-inch turrets
| triple 4-inch mountings
| starboard single 4-inch mounting
| starboard single 3-inch AA mounting
}}]]
The ''Renown''-class ships mounted six 42-[[caliber (artillery)|calibre]] [[BL 15 inch Mk I naval gun|BL 15-inch Mk I guns]] in three twin hydraulically powered gun turrets, designated "A", "B", and "Y" from front to rear.<ref name=b97/> The guns could be depressed to −3° and elevated to 20°; they could be loaded at any angle up to 20°, although loading at high angles tended to slow the gun's return to battery (firing position). The ships carried 120 shells per gun. They fired {{convert|1910|lb|kg|adj=on|0}} projectiles at a [[muzzle velocity]] of {{convert|2575|ft/s|m/s|abbr=on}}; this provided a maximum range of {{convert|23734|yd|abbr=on|0}} with [[Armor-piercing shot and shell|armour-piercing]] shells.<ref>{{cite web|url=http://www.navweaps.com/Weapons/WNBR_15-42_mk1.htm|title=British 15"/42 (38.1 cm) Mark I |date=1 April 2010|access-date=4 May 2010|publisher=navweaps.com}}</ref>

The ships were designed with seventeen 45-calibre [[BL 4 inch Mk IX naval gun|BL 4-inch Mark IX guns]], fitted in five triple and two single mounts. These were manually powered and quite cumbersome in use as they required a crew of thirty-two men to load and train the triple gun mounts. The gun's rate of fire was only 10 to 12 rounds per minute as the loaders kept getting in each other's way. They had a maximum depression of −10° and a maximum elevation of 30°. They fired a {{convert|31|lb|kg|adj=on}} [[British ordnance terms#HE|high-explosive]] shell at a muzzle velocity of {{convert|2625|ft/s|m/s|abbr=on}}. At maximum elevation the guns had a maximum range of {{convert|13500|yd|m|0}}.<ref>{{cite web|url=http://www.navweaps.com/Weapons/WNBR_4-45_mk9.htm|title=Britain 4"/45 (10.2 cm) BL Marks IX and X|date=25 January 2010 |access-date=7 May 2010|publisher=navweaps.com}}</ref> The ships carried 200 rounds for each gun.<ref name=b97/>

Each ship mounted a pair of [[QF 3 inch 20 cwt]]<ref group=Note>"cwt" is the abbreviation for [[hundredweight]], 30 cwt referring to the weight of the gun.</ref> [[Anti-aircraft warfare|anti-aircraft]] guns on single high-angle mountings. These were mounted on the shelter deck abreast the rear funnel.<ref name=rr48>Raven and Roberts, p. 48.</ref> The gun had a maximum depression of 10° and a maximum elevation of 90°. It fired a {{convert|12.5|lb|kg|adj=on}} shell at a muzzle velocity of {{convert|2500|ft/s|m/s|abbr=on}} at a rate of fire of 12–14 rounds per minute. They had a maximum effective ceiling of {{convert|23500|ft|m|abbr=on}}.<ref>{{cite web|url=http://www.navweaps.com/Weapons/WNBR_3-45_mk1.htm|title=British 12-pdr 3"/45 (76.2 cm) 20 cwt QF HA Marks I, II, III and IV |date=27 February 2007|access-date=11 November 2009|publisher=navweaps.com}}</ref> Both ships carried ten [[torpedo]]es and mounted two [[British 21 inch torpedo|{{convert|21|in|adj=on|0}}]] submerged [[torpedo tube]]s fitted just forward of "A" [[barbette]].<ref>Roberts, p. 83.</ref>
{{clear left}}