The was a class of minesweepers 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, when it was dissolved following Japan's surrender ...

(IJN), serving during

World War II World War II or the Second World War, often abbreviated as WWII or WW2, was a world war that lasted from 1939 to 1945. It involved the vast majority of the world's countries—including all of the great powers—forming two opposin ...

. 70 vessels were planned under the Maru 4 Programme (Ship # 164–169), Maru Kyū Programme (Ship # 410–437) and Kai-Maru 5 Programme (Ship # 5301–5336), however, only 17 vessels were completed.

Background

* Project number I4B. Improved model of the ''No.7''-class. The IJN gave them a turret of 55 degrees gun elevation,11th Year Type naval gun, Type-M turret. ''No.7''-class equipped the 3rd Year Type 120 mm naval gun, Type-G turret (33 degrees gun elevation). because the IJN wanted to attack the strong point of behind the hill to them. And it was not useful in the Pacific War very much. * And after the Maru Kyū Programme vessels abolished double-curvature bow for a mass production and changed bow shape.

Ships in class

Photo

Image:Japanese minesweeper MSC21.jpg, ''No.21'' on 16 September 1945 at

Qingdao Qingdao (, also spelled Tsingtao; , Mandarin: ) is a major city in eastern Shandong Province. The city's name in Chinese characters literally means " azure island". Located on China's Yellow Sea coast, it is a major nodal city of the One Belt ...

Footnotes

Bibliography

* *, History of Pacific War Vol.51 ''The truth histories of the Japanese Naval Vessels Part-2'',

Gakken is a Japanese publishing company founded in 1947 by Hideto Furuoka, which also produces educational toys. Their annual sales is reported at ¥ 90 billion ($789 million US). Gakken publishes educational books and magazines and produces other ...

(Japan), August 2005, *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 *''50 year History of Harima Zōsen'', Harima Zōsen Corporation, November 1960 {{DEFAULTSORT:19 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