Editing Montana-class battleship (section)

=== Armament ===
[[File:Iowa 16 inch Gun-EN.svg|thumb|right|Cutaway of a 16-inch gun turret]]

The primary armament of a ''Montana''-class battleship would have been twelve [[16"/50 caliber Mark 7 gun|{{convert|16|in|mm|0|adj=on}}/50 caliber Mark 7 guns]], which were to be mounted in four three-gun turrets. The turrets were placed in two [[superfire|superfiring]] pairs, one forward and one aft.{{sfn|Friedman|1980|p=100}} The guns fired two types of shells: a {{cvt|2700|lb|kg}} armor-piercing shells and {{cvt|1900|lb|kg}} high capacity (HC) shells that carried a larger [[Shell (projectile)#High-explosive shells|high-explosive]] bursting charge. The shells had [[muzzle velocity|muzzle velocities]] of {{cvt|2500|ft/s}} and {{cvt|2690|ft/s}}, respectively. Firing AP shells at the maximum elevation of 45&nbsp;degrees, the guns could reach targets out to {{cvt|42345|yd}}, while the lighter HC shells had a slightly reduced range of {{cvt|41604|yd}}. The shells had a flight time in excess of eighty seconds at those distances. At a realistic engagement distance of {{cvt|20000|yd}}, the AP shells could penetrate {{cvt|20|in|0}} of steel armor. The guns had a [[rate of fire]] of two shots per minute, and had a rate of train of four degrees per second. They had to be returned to 5&nbsp;degrees elevation for reloading.{{sfn|Campbell|1985|pp=117–118}}{{sfn|Garzke|Dulin|1995|pp=310–311, 326–327}}

The secondary armament for the ''Montana''-class ships was to be twenty {{cvt|5|in|0}}/54 cal  Mark 16 [[dual-purpose gun]]s housed in ten two-gun turrets along the superstructure.{{sfn|Friedman|1980|p=100}} These guns, designed for the ''Montana'' class, were intended to improve the effective range over the shorter-barreled Mark 12 guns then in service. They fired a {{cvt|70|lb}} projectile at a muzzle velocity of {{cvt|2650|ft/s}} and had a maximum range of {{cvt|25909|yd}} against surface targets and a maximum ceiling of {{cvt|51600|ft}} against aerial targets. The guns had a rate of fire of fifteen shots per minute.{{sfn|Campbell|1985|p=143}}

Each ship would have carried a light anti-aircraft armament of thirty-two [[Bofors 40 mm Automatic Gun L/60|{{cvt|40|mm}} Bofors guns]] and twenty [[Oerlikon 20 mm cannon|{{cvt|20|mm}} Oerlikon guns]]. The Bofors guns were to be carried in eight quadruple mounts, while the Oerlikons were to have been mounted individually, although the number of Bofors and Oerlikon mounts would likely have increased considerably had the ships been built.{{sfn|Friedman|1980|p=100}} The Bofors guns fired {{cvt|1.98|lb}} shells at a velocity of {{cvt|2890|ft/s}}, and they had a maximum ceiling of {{cvt|22800|ft}}. The Oerlikon guns were supplied with {{cvt|.27|lb}} shells, which they fired with a muzzle velocity of {{cvt|2740|to|2770|ft/s}}.{{sfn|Campbell|1985|p=147}}