historyWikipedia1940s · USA

The US Navy planned five Montana-class battleships, the largest it ever designed, then cancelled them in World War II

the gist

The Montana class was a planned set of American battleships designed as the successor to the Iowa class. The ships were to be slower but larger, better armoured and more heavily armed, carrying twelve 16-inch guns in four triple turrets instead of nine guns in three turrets. Designed without treaty limits, they would have rivalled Japan's Yamato-class battleships in displacement. Congress approved the first two in 1939, and five were approved during World War II. The attack on Pearl Harbor delayed construction, and the carrier battles at the Coral Sea and Midway showed how much more valuable aircraft carriers were than battleships. The Navy first delayed and then cancelled the class in favour of carriers, amphibious ships and anti-submarine vessels.

so what

The cancellation marks the moment when aircraft carriers clearly replaced battleships as the core of naval power. Ships that were never built still reveal how wartime experience reshaped military planning.

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