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IJN Kongo Class Battleship

The Kongo-class battleships represent one of the most fascinating chapters in naval history, bridging the transition from the dreadnought era to modern fast battleship design. These four warships—Kongo, Hiei, Haruna, and Kirishima—served the Imperial Japanese Navy for over three decades and saw some of the most intense naval combat of World War II.

The lead ship, Kongo, holds a special distinction as the last major Japanese warship built outside of Japan. Constructed at the Vickers shipyard in Barrow-in-Furness, England between 1911 and 1913, she was designed by the renowned British naval architect Sir George Thurston. The Japanese government contracted with Britain not only to acquire a modern capital ship but also to gain the technical knowledge necessary to build similar vessels domestically. The remaining three ships of the class were indeed built in Japanese shipyards using the British plans, marking an important step in Japan's journey toward naval independence.

Originally classified as battlecruisers, these ships embodied the philosophy of speed and firepower over protection. They were armed with eight 14-inch guns in four twin turrets, with a secondary battery of sixteen 6-inch guns. Their relatively thin armor—compared to true battleships of the era—allowed them to achieve speeds over 27 knots, making them among the fastest capital ships of their time. This design philosophy, championed by Admiral Jackie Fisher of the Royal Navy, created vessels that could outrun anything they couldn't outfight.

The 1930s brought dramatic transformations to all four ships through extensive reconstruction programs. The Japanese Navy recognized that the original battlecruiser concept had become obsolete, particularly as new treaty battleships combined heavy armor with respectable speed. Between 1929 and 1940, each Kongo-class ship underwent radical modernization that essentially rebuilt them from the waterline up. Their hulls were lengthened, their machinery completely replaced with more powerful turbines, and their armor significantly enhanced. The iconic pagoda-style superstructures were constructed, bristling with fire control equipment and observation platforms. These modifications increased their speed to approximately 30 knots while providing protection comparable to modern battleships, effectively reclassifying them from battlecruisers to fast battleships.

When World War II erupted in the Pacific, the Kongo-class formed the backbone of Japan's fast battleship force. Their unique combination of speed and firepower made them invaluable for escorting carrier strike forces and engaging in the chaotic night actions that characterized the Pacific War. Hiei and Kirishima both met their fates during the brutal naval battles off Guadalcanal in November 1942, engaging American forces in close-range nighttime melees that saw both ships crippled and eventually sunk. Haruna survived longer, participating in numerous operations including the Battle of Leyte Gulf in October 1944, before being sunk by American aircraft at her moorings in Kure harbor in July 1945. Kongo herself was torpedoed and sunk by the American submarine USS Sealion in November 1944 while transiting the Formosa Strait, becoming the only Japanese battleship sunk by submarine during the war.

The legacy of the Kongo-class extends beyond their individual combat records. They represented Japan's successful absorption and adaptation of Western naval technology, serving as a bridge between imported expertise and indigenous naval construction capability. Their longevity and effectiveness, serving from the era of coal-fired dreadnoughts through to the age of radar and aircraft carriers, demonstrated the value of continuous modernization. Even in defeat, they proved themselves formidable opponents, and their distinctive silhouettes remain among the most recognizable warship profiles in naval history.




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