The were a class of

minesweeper A minesweeper is a small warship designed to remove or detonate naval mines. Using various mechanisms intended to counter the threat posed by naval mines, minesweepers keep waterways clear for safe shipping. History The earliest known usage of ...

s of the

Imperial Japanese Navy The Imperial Japanese Navy (IJN; Kyūjitai: Shinjitai: ' 'Navy of the Greater Japanese Empire', or ''Nippon Kaigun'', 'Japanese Navy') was the navy of the Empire of Japan from 1868 to 1945, Potsdam Declaration, when it was dissolved followin ...

(IJN), serving during the

Second Sino-Japanese War The Second Sino-Japanese War was fought between the Republic of China (1912–1949), Republic of China and the Empire of Japan between 1937 and 1945, following a period of war localized to Manchuria that started in 1931. It is considered part ...

and

World War II World War II or the Second World War (1 September 1939 – 2 September 1945) was a World war, global conflict between two coalitions: the Allies of World War II, Allies and the Axis powers. World War II by country, Nearly all of the wo ...

. Six vessels were built in 1937–1939 under the Maru 3 Keikaku.

Background

* Project number I4. Improved model of the . They were built to update timeworn ''No.7'' class, ''No.9'' class and ''No.11'' class.''No.7'' (ex.-), ''No.8'' (ex.-), ''No.9'' (ex.- ''Nara''), ''No.10'' (ex.-), ''No.11'' (ex.- ''Nagatsuki'') and ''No. 12'' (ex.- ''Kikutsuki'') Kampon deleted minelayer facility from them, because IJN hoped they act in

Yangtze River The Yangtze or Yangzi ( or ) is the longest river in Eurasia and the third-longest in the world. It rises at Jari Hill in the Tanggula Mountains of the Tibetan Plateau and flows including Dam Qu River the longest source of the Yangtze, i ...

. And they added to one naval gun for engage with

National Revolutionary Army The National Revolutionary Army (NRA; zh, labels=no, t=國民革命軍) served as the military arm of the Kuomintang, Chinese Nationalist Party (Kuomintang, or KMT) from 1924 until 1947. From 1928, it functioned as the regular army, de facto ...

. Therefore, the ''No.7'' class had the silhouette which resembled the and s.

Ships in class

Footnotes

Bibliography

* Ships of the World special issue Vol.45, ''Escort Vessels of the Imperial Japanese Navy'', , (Japan), February 1996 * The Maru Special, Japanese Naval Vessels No.50, ''Japanese minesweepers and landing ships'', (Japan), April 1981 {{DEFAULTSORT:7-class minesweeper World War II mine warfare vessels of Japan Minesweepers of Japan Mine warfare vessels of the Imperial Japanese Navy Gunboats of the Imperial Japanese Navy Mine warfare vessel classes