Japanese battleship Hatsuse

Japanese battleship Hatsuse was a pre-dreadnought battleship of the Imperial Japanese Navy and the second vessel of the ''Shikishima'' class. Built in the United Kingdom by Armstrong Whitworth, she was a central component of Japan's rapidly modernizing fleet at the turn of the 20th century. Her career was cut short during the Russo-Japanese War when she struck a naval mine and sank in May 1904, representing a significant early loss for Japan in the conflict.

Design and description

The design of *Hatsuse* was derived from the preceding ''Majestic''-class and the lead ship ''Shikishima'', representing the peak of pre-dreadnought technology. Her primary armament consisted of four Elswick Ordnance Company 12-inch (305 mm) guns mounted in two twin gun turrets, one forward and one aft. Secondary firepower was provided by fourteen 6-inch (152 mm) quick-firing guns mounted in casemates along the sides of the hull. Protection was centered on a full-length waterline armor belt of Harvey armor, with a maximum thickness of 9 inches (229 mm) over the magazines and engine rooms. Propulsion was supplied by two triple-expansion steam engines fed by 25 Babcock & Wilcox boilers, giving a designed speed of 18 knots (33 km/h).

Construction and career

*Hatsuse* was ordered as part of the 1896 naval expansion program following the First Sino-Japanese War. Her keel was laid down on 10 January 1898 at the Elswick shipyard of Armstrong Whitworth in England. She was launched on 27 June 1899 and commissioned into the Imperial Japanese Navy on 18 January 1901. After her delivery voyage to Japan, she was assigned to the 1st Fleet. With the outbreak of the Russo-Japanese War in February 1904, *Hatsuse* became a flagship unit of the Combined Fleet under Admiral Tōgō Heihachirō, participating in the initial Battle of Port Arthur and the subsequent blockade of the Russian Pacific Fleet in that harbor.

Sinking

On 15 May 1904, *Hatsuse*, along with the battleships ''Shikishima'' and ''Yashima'' and the protected cruiser ''Kasagi'', was engaged in a sweep near Port Arthur. The squadron entered a recently laid minefield sown by the Russian minelayer ''Amur''. At approximately 10:50 AM, *Hatsuse* struck one mine, which caused significant flooding but did not immediately sink. While attempting to withdraw and take the crippled *Yashima* under tow, *Hatsuse* struck a second mine about 90 minutes later. The second explosion detonated one of her forward magazines, causing a catastrophic explosion. The battleship sank in less than two minutes about 5 nautical miles southeast of Encounter Rock, with the loss of 496 officers and men, including her captain, Nakao Miki. The protected cruiser ''Tatsuta'' and destroyers rescued 336 survivors.

Aftermath and legacy

The loss of *Hatsuse*, coupled with the mining of *Yashima* (which foundered while under tow), was a severe blow to Japanese naval strength and morale, eliminating one-third of Japan's modern battleship force in a single day. The disaster forced Admiral Tōgō Heihachirō to adopt a more cautious strategy and underscored the lethal threat posed by mine warfare. The incident was widely reported in international press, including The Times of London, and influenced global naval thinking. In Japan, the sinking was memorialized, and the event remains a notable case study in naval history concerning the vulnerability of capital ships to inexpensive weapons. The wreck of *Hatsuse* was discovered by salvagers in the 1910s, and some of her 12-inch guns were later recovered and reportedly used as coastal artillery.

Category:Battleships of the Imperial Japanese Navy Category:Shikishima-class battleships Category:Ships built on the River Tyne Category:Maritime incidents in 1904 Category:Russo-Japanese War naval ships Category:World War I naval ships of Japan