The Chōkai was an iron-hulled, steam-powered gunboat serving in the early Imperial Japanese Navy. As a second vessel of the Maya class, she was constructed at the Ishikawajima-Hirano Shipyards in Tokyo, laid down on January 1, 1886, launched on August 20, 1887, and completed by December 27, 1888. The vessel featured a two-masted schooner rig and was powered by a horizontal double expansion reciprocating steam engine, which drove two screws via two cylindrical boilers, providing her with the propulsion necessary for her patrol and combat duties. Chōkai’s service record includes participation in significant conflicts such as the First Sino-Japanese War, where she operated under Lieutenant Commander Tōgō Masamichi, patrolling off Korea and Dairen, and contributing to the Battle of Weihaiwei. Notably, on the night of February 5, she took part in a diversionary night operation alongside the gunboat Atago, attempting a feint attack on the harbor’s northern entrance while Japanese torpedo boats targeted from the east, resulting in the sinking of the Chinese battleship Dingyuan and damaging the cruiser Laiyuan. Following China's surrender, Chōkai remained in Weihaiwei as part of the Japanese occupation force. Reclassified as a second-class gunboat on March 21, 1898, she was repurposed for coastal survey and patrol duties. During the Boxer Rebellion, she patrolled off the Taku Forts. In the Russo-Japanese War, Chōkai assisted in the Siege of Port Arthur, including escorting old freighters to block the harbor and supporting the Battle of Nanshan on May 26, 1904, where her captain, Lieutenant Commander Hayashi Michio, was killed during shore bombardment. She continued service under Lieutenant Commander Hirose Katsuhiko, participating in the Invasion of Sakhalin. Chōkai was decommissioned from active combat on April 1, 1908, and served as a training vessel at Sasebo Naval District. She was transferred to the Home Ministry in 1911 for use as a police boat in Kobe Harbor, and was subsequently demilitarized and sold for scrap in 1912, marking the end of her maritime service.

This description has been generated using GPT-4.1-NANO based on the Vessel's wikidata information and then modified by ShipIndex.org staff.