Kaidai-type submarine
Boat No Boat Builder Laid down Launched Completed Fate
154 I-176 ( ex- I-76 ) Kure Naval Arsenal 22 June 1940 as I-76 7 June 1941 4 August 1942 as I-176 Sunk by USS Franks and USS Haggard northwest of Buka Island on 17 May 1944
155 I-177 ( ex- I-77 ) Kawasaki , Kōbe Shipyard 10 March 1941 as I-77 20 December 1941 28 December 1942 as I-177 Sunk by USS Steele and USS Samuel S. Miles northwest of Palau on 3 October 1944
156 I-178 ( ex- I-78 ) Mitsubishi , Kōbe Shipyard 21 May 1941 as I-78 24 February 1942 26 December 1942 as I-178 Lost sometime after 17 June 1943 during a patrol off eastern Australia . Cause of loss not known , but some sources state that she was sunk by Royal Australian Air Force aircraft
157 I-179 ( ex- I-79 ) Kawasaki , Kōbe Shipyard 21 August 1941 as I-79 16 July 1942 as I-179 8 June 1943 Lost in an accident at Iyo Nada on 9 July 1943
158 I-180 ( ex- I-80 ) Yokosuka Naval Arsenal 17 April 1941 as I-80 7 February 1942 as I-180 15 January 1943 Sunk by USS Gilmore at Dutch Harbor 55°10′N 155°40′W / 55.167°N 155.667°W / 55.167 ; -155.667 on 27 April 1944
159 I-181 Kure Naval Arsenal 11 November 1941 2 May 1942 25 May 1943 ( 1 ) . Sunk by USN destroyer and patrol torpedo boat in New Guinea on 16 January 1944 ( 2 ) . Sunk by USN carrier aircraft in the Saint George 's Channel on 16 January 1944
160 I-182 Yokosuka Naval Arsenal 10 November 1941 20 May 1942 10 May 1943 ( 1 ) . Sunk by USS Wadsworth at Espiritu Santo on 1 September 1943 ( 2 ) . Sunk by USS Ellet in the New Hebrides on 3 September 1943
161 I-183 Kawasaki , Kōbe Shipyard 26 December 1941 21 January 1943 3 October 1943 Sunk by USS Pogy south of Shikoku on 28 April 1944
162 I-184 Yokosuka Naval Arsenal 1 April 1942 12 December 1942 15 October 1943 Sunk by aircraft from USS Suwannee southeast of Saipan on 19 June 1944
163 I-185 Yokosuka Naval Arsenal 9 February 1942 16 September 1942 23 September 1943 Sunk by USS Newcomb and USS Chandler northwest of Saipan on 22 June 1944
Class variants -- Kaidai VII ( I-176 class )
Project number S41 . The final design in the Kaidai class , ten Kaidai VIIs were ordered in 1939 ( I-176 I-185 ) , and were completed over the course of 1942 and 1943 . [ 9 ] They were built in 1939 under the Maru 4 Programme . The IJN called New Kaidai ( 新海大型 , Shin Kaidai-gata ) unofficially , and intended to replace this type with Kaidai III and Kaidai IV . Instead of possessing some aft-firing torpedo tubes as all other predecessors did , the Kaidai VII 's six tubes all faced forward . They had an endurance of 75 days . [ 10 ] Seven of the ten Kaidai VIIs were sunk within their first year of operation and all ten vessels were sunk by October 1944 . [ 10 ] Boats in class [ 9 ] [ 10 ]
The was a type of first class submarine operated by the Imperial Japanese Navy (IJN) before and during World War II. The type name was shortened to Navy Large Type Submarine. 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 names. For example, I-52 became I-152. Ships are listed by the three-digit boat name if they had one, two-digit if they were not granted one or left service before 20 May 1942.