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My take on a modernized yamato-class
what if the yamato was never sent to operation ten-go and nagato took her place instead this continues on untill the war ends with the yamato being a us war trophy it continues to be that way until it is re-aquired by japan in 1962 just years after the japan self defense force is established since battleships became obsolete and replaced by aircraft carriers japan used yamato as a defense ship as battleships became part of the jmsdf as a defensive weapon in the japanese constitution's article 9 as it was used as a defense ship it continues on untill 1986 to 1992 before yamato got her final modernization
the yamato's old engine and boilers are replaced by new engine and boilers with a gas turbine egine for a (COSAG) combined steam and gas layout to increase stability buldges are added for torpedo defense and stability
yamato-class defense battleship (DBB)
ships in class
yamato
length 264m
beam 42m
draft 10.4m
hight 56m/63m (keel to mast) (with aft mast)
weight 65,920t (empty) 68,809t (combat) 73,642t (max load)
armor
main belt 41cm
upper belt 27cm
lower belt 27cm
ends 25.5cm
main deck 22cm
middle deck 5.7cm
lower deck 20.3cm
conning tower 50cm
main turret's
facing 65cm
sides 25.4cm
roof 27cm
rear 19cm
speed 32.5 knot's
main armament
3x3 46cm/45 type 94
2x3 15.5cm/60 type 3 kai /x2 12.7cm/54 oto melara compact
x4 20mm phalanx ciws
1x2 mk-49 ram
missiles
x16 type 90 ssm
32 bgm-109 tomahawk abl
rim-66
rum-139 asroc
crusing range 17,500 nautical mile's at 16 knot's