I-180 was a Kaidai class submarine

Kaidai class submarine

The was a type of 1st class submarine operated by the Imperial Japanese Navy before and during World War II. The type name, was shortened to . All Kaidai class submarines originally had a two digit boat name, from I-51 onwards. On 20 May 1942, all Kaidai submarines added a '1' to their name. For...

 (KD7 Type) of the 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...

 during World War II

World War II

World War II, or the Second World War , was a global conflict lasting from 1939 to 1945, involving most of the world's nations—including all of the great powers—eventually forming two opposing military alliances: the Allies and the Axis...

. Laid down at the Yokosuka Naval Arsenal

Yokosuka Naval Arsenal

was one of four principal naval shipyards owned and operated by the Imperial Japanese Navy, and was located at Yokosuka city, Kanagawa prefecture on Tokyo Bay, south of Yokohama...

 on 17 April 1941 and launched on 7 February 1942. Completed on 15 January 1943. She torpedoed and sank the Australian merchant ship Wollongbar

SS Wollongbar (1922)

Wollongbar was a 2,239 ton passenger steamship built by the Lithgows, Port Glasgow in 1922 for the North Coast Steam Navigation Company, as a replacement for which was wrecked in 1921.-Fate:...

on 29 April 1943, the Norwegian merchant ship Fingal on 5 May 1943, while damaged the Australian merchant vessels Ormiston and Caradale on 12 May 1943.