Editing Brooklyn-class cruiser (section)

=== Armament ===

The ''Brooklyn'' class was equipped with 15 [[6"/47 caliber gun|6-inch/{{wbr}}47 caliber Mark 16]] naval guns, developed from the [[6"/53 caliber gun|6-inch/{{wbr}}53 caliber Mark 8]] used on the ''Omaha''-class cruiser. The decision was reached as the gun could achieve up to ten rounds per minute rate of fire. This gave the class the ability to send up to 150 rounds a minute at its intended target. This allowed the cruiser to smother an enemy ship with fire. The turret arrangement was five turrets, each mounting three guns on a single sleeve, which did not allow the guns in a turret to move independently. The 6-inch guns were of a new design, the Mark 16, which could fire a {{convert|130|lb|adj=on|abbr=off}} [[armor-piercing shell]] (AP) up to {{convert|26100|yd|0}} with twice the penetrative power of the old gun. The ammunition was of the [[Shell (projectile)#Separate loading cased charge|semi-fixed type]].<ref>{{cite web |last= DiGuilian |first= Tony |date= 12 February 2021 |title= 6"/47 (15.2 cm) Mark 16 |website= NavWeaps.com |url= http://www.navweaps.com/Weapons/WNUS_6-47_mk16.php |access-date= 5 September 2021}}</ref> <!-- noted at rising from {{convert|3.5|to|5.5|in}} at {{convert|10000|yd|0}} and {{convert|2|in|0}} of deck armor at {{convert|20000|yd|0}}. (Not sure what is being said here, what does "rising from 3.5 to 5.5in at 10,000yds" refer to? Is it supposed to be penetration at the distance?)--> The impact of the shell changed the General Board's view on the usefulness of light cruisers in service.<ref>Friedman p. 194</ref>

As designed, the anti-aircraft weaponry specified eight [[5"/25 caliber gun|{{convert|5|in|adj=on|0}}/{{wbr}}25 caliber guns]] and eight [[M2 Browning|{{convert|.50|in|1}} caliber M2 Browning machine guns]]. The intention to mount [[1.1"/75 caliber gun|{{convert|1.1|in|adj=on}}/{{wbr}}75 caliber]] anti-aircraft guns was frustrated and the requirement was not fully met until 1943. The weapon as deployed was less than satisfactory with frequent jamming and weight being serious issues.<ref>Schreier, Konrad F. (1994). "The Chicago Piano". Naval History. United States Naval Institute. 8 (4): 44–46.</ref> Some of the class had 5-in/38 caliber guns installed versus the 5-in/25 guns.<ref>Stille p. 100</ref> There were varied mixes of [[Oerlikon 20 mm cannon|{{convert|20|mm|adj=on|sp=us}} Oerlikon cannons]] and [[Bofors 40 mm Automatic Gun L/60|{{convert|40|mm|adj=on|1|sp=us}} Bofors gun]] mountings actually installed during World War II, 28 40&nbsp;mm (4 × 4, 6 × 2) and twenty 20&nbsp;mm (10 × 2) being the most common.<ref name="w24x"/>