Construction
Iowa was the lead ship of her class of "fast battleship" designs planned in 1938 by the Preliminary Design Branch at the Bureau of Construction and Repair. She was launched on 27 August 1942 which First Lady Eleanor Roosevelt attended and was sponsored by Ilo Wallace (wife of Vice President Henry Wallace), and commissioned on 22 February 1943 with Captain John L. McCrea in command. She was the first ship of her class of battleship to be commissioned by the United States.
Iowa's main battery consisted of nine 16" (406.4mm)/50 caliber Mark 7 gun, which could fire 2,700 lb (1,200 kg) armor-piercing shells some 20 nmi (23 mi; 37 km). Her secondary battery consisted of 20 5 in (130 mm)/38 cal guns in twin turrets, which could fire at targets up to 12 nmi (14 mi; 22 km) away. With the advent of air power and the need to gain and maintain air superiority came a need to protect the growing fleet of Allied aircraft carriers; to this end, Iowa was fitted with an array of Oerlikon 20 mm and Bofors 40 mm anti-aircraft guns to defend Allied carriers from enemy airstrikes.
Read more about this topic: USS Iowa (BB-61)
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