Design A-118 was the last 4 turreted battleship design of the Imperial Japanese Navy and essentially a lengthened version of the previous A-117 with much stronger funnel base protection. While the designs A-115 and 116 was the Fast Nagato designs, together with A-117, A-118 too was an even faster Nagato type battleship with 32knots or 59km/h maximum speed and like how A-116 was companion design to A-115, A-118 too was a companion design to A-117. The diference being the even numbers had only 1" or 25mm armour plates around the funnel uptakes, the uneven proposals had a very thick 6 to 9" or 152-229mm platings! This resulted in an a base increase of probably around 1.000-1.250tons of armour alone and to maintain the desired high speed the hull was lengthened, the engine power increased by 5.0000shp to 150.000shp and displacement risen by 2.300tons over A-117.
None the less we got a nice sleek good looking very fast battleship which could catch even battlecruisers and fight equally with battleships!
The design had the following characteristics:
Dimensions: 243,84 (pp) x 260,00 (oa) x 29,57 x 9,14 meters
Displacement: 39.400tons (standard)
Armour: 229mm Belt inclined at 25 degrees, 76mm Deck, 51mm at Machinery 76mm at Magazine Slopes
Engines: 150.000shp Gihon Steam Turbines, 4 shafts
Range: 10.200km at 30km/h (5.500nm at 16knots)
Speed: 59km/h (32knots)
Armaments:
4x2 410mm/45 Type 3 / 3rd Year Type Cannons,
20x1 140mm/50 Type 3 / 3rd Year Type Guns,
4x1 76mm/40 Type 3 / 3rd Year Type AA Guns,
4x1 53cm Above Water Torpedo Tubes
Official sketch drawing:
https://iiif.dl.itc.u-tokyo.ac.jp/repo/s/hiraga/document/c75d3e2f-a10a-4fb8-91bf-446d69cb2031
Data tables:
https://iiif.dl.itc.u-tokyo.ac.jp/repo/s/hiraga/document/d059f655-21b8-4530-8979-ce9ac0733c10#?c=0&m=0&s=0&cv=1&xywh=3593%2C85%2C2790%2C4678&r=270
https://iiif.dl.itc.u-tokyo.ac.jp/repo/s/hiraga/document/92cdfb52-21f7-4942-98e3-643167773975#?c=0&m=0&s=0&cv=3&xywh=1150%2C722%2C2053%2C3442&r=90