Based on an alternate history.
During the Battle of Guadalcanal in 1942 the Japanese not only managed to hold on to the islands but even sank a majority of US Carriers in the area. They Achieved this by making full use of both the Yamato and the Musashi's long range fire advantage over Allied battleships. The two navies air wings fought for nearly the whole battle but neither was able to achieve or maintain air dominance. As a result the US Navy decided that carriers were not the most effective use of their resources and instead turned back to the battleship.
The Navy wanted a new battleship that was capable of out fighting anything the Japanese could come up with on top of that the ship had to avoid starting a new arms race with the Japanese. Upon review it was decided that the Montana Class currently in the line up was insufficient as it's 16 inch guns were still outclassed in terms of range by the Yamato.
Enter the Alaska Class. The new "Super Battleship" Would be fitted with 15 19.1 inch cannons in 5 triple barrel turrets, complemented by 36 11 inch guns in 18 twin turrets. The ship would have the same anti-aircraft defenses as the Iowa bolstered even further by an additional 34 40 Bofors. The Armor on the ship remained classified for the duration of its service but was quoted at being "no less than 280mm" with some estimates claiming more than 800mm maximum. The ship displaced 102,450 Long Tons making it the heaviest ship ever built, it ran 1,396 feet in length and had a draft of 45 feet and beam of 254 feet. It was the single largest moving construction ever created. Powered by 4 130,000 hp turbines with a combined hp of over 510,000hp the ship was able to reach 34kts despite its epic size.
One of the most notable features of the Alaska Class is the number 2 turret with is pointed backwards relevant to the number 1 and 3 turrets. This allowed for the number 1 and 2 turrets to share a loading elevator and reduce weight. It was considered that the reduction in forward firepower was acceptable as the Alaska was already capable of out gunning the Yamato with just 6 guns.
Each shell fired weighed of 2 tonns making a full broadside consist of 30 tonns of high explosive shells. while the Yamato put out less than 15 tonns. The Guns had a range of 45.2 miles, and with the 1943 refit could reach out to a full 50 miles.
4 Alaska Class Battleships were ordered Starting with the Alaska and continuing with the Main, Washington, and one other yet to be named vessel. the First mission of the the U.S.S. Alaska BB65 would be the retaking of Guadalcanal.
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