was an early steam gunboat

Gunboat

A gunboat is a naval watercraft designed for the express purpose of carrying one or more guns to bombard coastal targets, as opposed to those military craft designed for naval warfare, or for ferrying troops or supplies.-History:...

, serving in the fledgling Imperial Japanese Navy

Imperial Japanese Navy

The Imperial Japanese Navy was the navy of the Empire of Japan from 1869 until 1947, when it was dissolved following Japan's constitutional renunciation of the use of force as a means of settling international disputes...

. She was the second vessel to be completed in the four vessel , and was named after Mount Chōkai

Mount Chokai

is the second tallest mountain in the Tōhoku region of Japan. It stands on the border of Yamagata and Akita prefectures, and is tall.Mount Chōkai is regarded as sacred by followers of the Shugendō branch of Shinto and is popular with hikers. It is one of the 100 famous mountains in Japan.-External...

 in between Yamagata

Yamagata Prefecture

-Fruit:Yamagata Prefecture is the largest producer of cherries and pears in Japan. A large quantity of other kinds of fruits such as grapes, apples, peaches, melons, persimmons and watermelons are also produced.- Demographics :...

 and Akita Prefecture

Akita Prefecture

is a prefecture of Japan located in the Tōhoku Region of northern Honshu, the main island of Japan. The capital is the city of Akita.- History :The area of Akita has been created from the ancient provinces of Dewa and Mutsu....

s.

History

Chōkai was a metal-hulled two-masted gunboat with a horizontal double expansion reciprocating steam engine

Steam engine

A steam engine is a heat engine that performs mechanical work using steam as its working fluid.Steam engines are external combustion engines, where the working fluid is separate from the combustion products. Non-combustion heat sources such as solar power, nuclear power or geothermal energy may be...

 with two boilers driving two screws. Chōkai was laid down at the IHI Shipyards in Tokyo

Tokyo

, ; officially , is one of the 47 prefectures of Japan. Tokyo is the capital of Japan, the center of the Greater Tokyo Area, and the largest metropolitan area of Japan. It is the seat of the Japanese government and the Imperial Palace, and the home of the Japanese Imperial Family...

 on January 1, 1886 and launched on August 20, 1887. She was completed on December 27, 1888.

Chōkai saw combat service in the First Sino-Japanese War

First Sino-Japanese War

The First Sino-Japanese War was fought between Qing Dynasty China and Meiji Japan, primarily over control of Korea...

, patrolling between Korea

Korea

Korea ) is an East Asian geographic region that is currently divided into two separate sovereign states — North Korea and South Korea. Located on the Korean Peninsula, Korea is bordered by the People's Republic of China to the northwest, Russia to the northeast, and is separated from Japan to the...

, Dairen and played a role at the Battle of Weihaiwei

Battle of Weihaiwei

The Battle of Weihaiwei was a 23 day siege with a major land and naval component during the First Sino-Japanese War. It took place between 20 January and 12 February 1895 in Weihai, Shandong Province, China) between the forces of Meiji Japan and Qing China...

.

On 21 March 1898, Chōkai was re-designated as a second-class gunboat

Gunboat

A gunboat is a naval watercraft designed for the express purpose of carrying one or more guns to bombard coastal targets, as opposed to those military craft designed for naval warfare, or for ferrying troops or supplies.-History:...

, and was used for coastal survey and patrol duties. During the Boxer Rebellion

Boxer Rebellion

The Boxer Rebellion, also called the Boxer Uprising by some historians or the Righteous Harmony Society Movement in northern China, was a proto-nationalist movement by the "Righteous Harmony Society" , or "Righteous Fists of Harmony" or "Society of Righteous and Harmonious Fists" , in China between...

, Chōkai was assigned to patrol off the Taku Forts

Taku Forts

The Dagu Forts , also called the Peiho Forts are forts located by the Hai River estuary, in Tanggu District, Tianjin municipality, in northeastern China. They are located 60 km southeast of the Tianjin urban center.-History:The first fort was built during the reign of the Ming Jiajing...

.

During the Russo-Japanese War

Russo-Japanese War

The Russo-Japanese War was "the first great war of the 20th century." It grew out of rival imperial ambitions of the Russian Empire and Japanese Empire over Manchuria and Korea...

, Chōkai assisted in the Siege of Port Arthur

Siege of Port Arthur

The Siege of Port Arthur , 1 August 1904 – 2 January 1905, the deep-water port and Russian naval base at the tip of the Liaotung Peninsula in Manchuria, was the longest and most violent land battle of the Russo-Japanese War....

 and in the Invasion of Sakhalin towards the end of the war.

She was removed from active combat status on 1 April 1908, and was used as a training vessel at the Sasebo Naval District

Sasebo Naval District

was the third of five main administrative districts of the pre-war Imperial Japanese Navy. Its territory included the western and southern coastline of Kyūshū, the Ryukyu Islands, Taiwan and Korea, as well as patrols in the East China Sea and the Pacific...

. She was removed from the navy list

Navy List

A Navy List or Naval Register is an official list of naval officers, their ranks and seniority, the ships which they command or to which they are appointed, etc., that is published by the government or naval authorities of a country....

 and transferred to the Home Ministry

Home Ministry (Japan)

The ' was a Cabinet-level ministry established under the Meiji Constitution that managed the internal affairs of Empire of Japan from 1873-1947...

 on December 1, 1911 for use as a police boat in Kobe Harbor. She was subsequently demilitarized and sold for scrapped in 1912.