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 the 1930s and World War II. 6 vessels were built in 1931-36 under the Maru 1 Keikaku. They have two sub classes, this article handles them collectively.

Background

** Improved model of the ''No.1''-class. The IJN tried to a small hull than ''No.1''-class to give a performance the same as ''No.1''-class. And this attempt failed when the vessels were discovered to be top heavy by an investigation of the fleet in the aftermath of the ''Tomozuru'' Incident.

Ships in classes

''No.13'' class

** Project number I3A. 4 vessels were built in 1931-1934. ''No.15'' and ''No.16'' were behind with the completed by the ''Tomozuru'' Incident. They had clipper-bow.

''No.17'' class

** Project number I3B. 2 vessels were built in 1935-1936. Improved model of the ''No.13''-class. About their appearance, bow was changed to double-curvature bow and fitted Kampon geared turbine.

Photo

Image:Japanese minesweeper MSC16.jpg, ''No.16'' Image:Japanese minesweeper MSC18.jpg, ''No.18''

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:13 World War II mine warfare vessels of Japan Minesweepers of Japan Mine warfare vessel classes Mine warfare vessels of the Imperial Japanese Navy