This is a section of 26" steel armor intended for use on the Japanese ship IJN Shinano after a ballistics test. The test simulated getting hit by a 16" shell fired from a U.S. Iowa-class battleship from a range of 13 kilometers, or 8 miles.
14 in fast battleship sisters Kongo, Kirishima, Hiei and Haruna in 1940. Only the latter survived the war. Of WW1 vintage and originally built as battlecruisers, they were significantly upgraded in the 1930s.
IJN sister ships Fusō (l) and Yamashiro (r) sometime after their early 1930's reconstruction. Fusō impressively has all six turrets trained off to starboard. [3088x1628]
Asahi (朝日) was a pre-dreadnought battleship built for the Imperial Japanese Navy (IJN) in the late 1890s. Right elevation and plan of the Shikishima-class battleships and the battleship Asahi from Brassey's Naval Annual 1915. Unlike the drawing, Asahi had only two funnels.
Japanese battleship “Mutsu” (Nagato-class) during her preparatory work in the naval base at Yokosuka. Sailors are busy checking the ship’s systems and working on her body. She met her untimely end not through hostile fire, but by internal explosion in the summer of 1943. On the right side of the photo a float-scout Nakajima E8N1 is visible being loaded, as it was the basic IJN reconnaissance aircraft of the Second Sino-Japanese War
Nagato (長門?), named for Nagato Province, was a dreadnought battleship built for the IJN during the 1910s, and was the flagship of Admiral Isoroku Yamamoto during the attack on Pearl Harbor. She was attacked in July 1945 as part of the American campaign to destroy the IJN's last remaining capital ships, but was only slightly damaged. In mid-1946, the ship was a target for nuclear weapon tests during Operation Crossroads. She was sunk by the second test.
IJN Yamato, the largest battleship ever built. Her 18.1 inch guns were bigger than the Iowa-class battleships of the US, but she would never test those against the Missouri or her sister ships New Jersey, Iowa, or Wisconsin. It would be planes that would bring her down...