Japanese Submarines of the Second World War

Japanese submarines of the Second World War

Former IJN units at Kure harbour, Honshu, Japan, on 12 October 1945

(Official USN Photo, located at the US National Archives,CVE-29 Photo, 80-G-353701)

Submarine Class Picture Type Displacement Note

I-1-class

Japanese submarine I-1.jpg

SubmarineI-1 | I-2 | I-3 | I-4 | I-5 | I-6 | I-7 | I-8

1,970 tonnes. The official designation of the submarine was Junsen-type submarine.

I-9-class

(Official USN Photo, located at the US National Archives, 80-G-701062)

I-14, 25 September 1945.

(Official USN Photo, located at the US National Archives, 80-G-701060)

Ex-IJN submarines I-14 (centre) and I-400 at Sagami Bay, 25 September 1945.

(Official USN Photo, located at the US National Archives, 80-G-701061)

Ex-IJN submarines I-14 (centre) and I-400 at Sagami Bay, 25 September 1945.

SubmarineI-9 | I-10 | I-11 | I-12 | I-13 | I-14

2,434 tonnes. The official designation of the submarine was Type A (Ko) submarine.

I-15-class

I-15.jpg

SubmarineI-15 | I-17 | I-19 | I-21 | I-23 | I-25 | I-26 | I-27 | I-29 | I-30 | I-31 | I-32 | I-33 | I-34 | I-35 | I-36 | I-37 | I-38 | I-39 | I-40 | I-41 | I-42 | I-43 | I-44 | I-45 | I-54 | I-56 | I-58

2,184 tonnes. The official designation of the submarine was Type B (Otsu) submarine.

I-16-class

Japanese submarine I-18 in 1941.jpg

SubmarineI-16 | I-18 | I-20 | I-22 | I-24 | I-46 | I-47 | I-48 | I-52 | I-53 | I-55

2,184 tonnes, The official designation of the submarine was Type C (Hei) submarine.

I-361-class

Japanese submarine I-361.jpg

SubmarineI-361 | I-362 | I-363 | I-364 | I-365 | I-366 | I-367 | I-368 | I-369 | I-370 | I-371 | I-372 | I-373

1,440 tonnes. The official designation of the submarine was Type D (Tei) submarine.

I-51-class

Japanese submarine I51 1924.jpg

SubmarineI-51 | I-152 | I-153 | I-154 | I-155 | I-156 | I-157 | I-158 | I-159 | I-60 | I-63 | I-61 | I-162 | I-164 | I-165 | I-66 | I-67 | I-168 | I-169 | I-70 | I-171 | I-73 | I-174 | I-175 | I-176 | I-177 | I-178 | I-179 | I-180 | I-181 | I-182 | I-183 | I-184 | I-185

1,575 tonnes. The official designation of the submarine was Kaidai-type submarine.

I-121-class

Japanese submarine I-21.jpg

SubmarineI-121 | I-122 | I-123 | I-124

1,142 tonnes. The official designation of the submarine was Kiraisen-type submarine.

I-351-class

Bridge of IJN submarine I-351 in 1945.jpg

SubmarineI-351

3,512 tonnes. Planned 6. Completed 1. The official designation of the submarine was Senho-type submarine.

I-201-class

SenTaka.jpg

SubmarineI-201I-202I-203

1,503 tonnes. The official designation of the submarine was Sentaka-type submarine.

I-501-classSubmarineI-501

1,616 tonnes. This was a German Kriegsmarine submarine under the name U-181, until given to Japan in May 1945.

I-502-classSubmarineI-502

1,610 tonnes. This was a German Kriegsmarine submarine under the name U-862, until given to Japan May 1945.

I-503-class

Germany submarine UIT24 in 1944.jpg

SubmarineI-503

1,610 tonnes. This was an Italian Regia Marina submarine under the name Comandante Cappelini then captured by IJN after Italy's capitulation then given to the German Kriegsmarine in September 1943 under the name UIT-24. After that, it was captured again by IJN in May 1945. after Germany's surrender.

I-504-classSubmarineI-504

1,763 tonnes. This was an Italian Regia Marina submarine under the name Luigi Torelli. It was temporarily interned to IJN after Italy's capitulation then given to the German Kriegsmarine in September 1943 under the name UIT-25. After that it was captured again by IJN in May 1945 after Germany's surrender.

I-505-classSubmarineI-505

1,763 tonnes. This was a German Kriegsmarine submarine under the name U-219, until it was given to Japan in May 1945.

I-506-classSubmarineI-506

1,610 tonnes. This was a German Kriegsmarine submarine under the name U-195, until given to Japan May 1945.

Ro-11-class

Japanese submarine Ro-11 1919.jpg

SubmarineRo-11 | Ro-12 | Ro-13 | Ro-14 | Ro-15 | Ro-16 | Ro-17 | Ro-18 | Ro-19 | Ro-20 | Ro-21 | Ro-22 | Ro-23 | Ro-24 | Ro-25 | Ro-26 | Ro-27 | Ro-28 | Ro-29 | Ro-30 | Ro-31 | Ro-32 | Ro-33 | Ro-34 | Ro-35 | Ro-36 | Ro-37 | Ro-37 | Ro-38 | Ro-39 | Ro-40 | Ro-41 | Ro-42 | Ro-43 | Ro-44 | Ro-45 | Ro-46 | Ro-47 | Ro-48 | Ro-49 | Ro-50 | Ro-55 | Ro-56

720 tonnes. The official designation of the submarine was Type Kaichū submarine.

Ro-51-class

Japanese submarine Ro-51 in the 1920s.jpg

SubmarineRo-51 | Ro-52 | Ro-53 | Ro-54 | Ro-55 | Ro-56 | Ro-57 | Ro-58 | Ro-59 | Ro-60 | Ro-61 | Ro-62 | Ro-63 | Ro-64 | Ro-65 | Ro-66 | Ro-67 | Ro-68

893 tonnes. The official designation of the submarine was Type L submarine.

Ro-100-class

Japanese submarine Ro-101 in 1943.jpg

SubmarineRo-100 | Ro-101 | Ro-102 | Ro-103 | Ro-104 | Ro-105 | Ro-106 | Ro-107 | Ro-108 | Ro-109 | Ro-110 | Ro-111 | Ro-112 | Ro-113 | Ro-114 | Ro-115 | Ro-116 | Ro-117

525 tonnes.

Ha-201-class

Ha-202

SubmarineHa-201 | Ha-202 | Ha-203 | Ha-204 | Ha-205 | Ha-207 | Ha-208 | Ha-209 | Ha-210 | Ha-216

320 tonnes. Never saw combat. The official designation of the submarine was Sentaka-Shō type submarine.

Ro-500-class

Japanese submarine RO-500 in 1943.jpg

SubmarineRo-500

1,120 tonnes. This was a German Kriegsmarine submarine under the name U-511, until it was given to Japan on 16 September 1943.

Ro-501-classSubmarineRo-501

1,144 tonnes.  This was a  German Kriegsmarine submarine under the name U-1224, until it was given to Japan on 15 February 1944.

Submarine aircraft carrier

I-400-class

I-401, 13 September 1945

(Official USN Photo, located at the US National Archives, 80-G-345189)

I-401, 13 September 1945

(Official USN Photo, located at the US National Archives, 80-G-345187)

Submarine aircraft carrierI-400I-401I-402

6,560 tonnes. The official designation of this submarine was Sentoku type Submarine.

Transport Submarine

Ha-101-class

(left to right) Ibuki, Ha-105, Ha-106 and Ha-109

Transport submarine Ha-101 | Ha-102 | Ha-103 | Ha-104 | Ha-105 | Ha-106 | Ha-107 | Ha-108 | Ha-109 | Ha-111

370 tonnes. The official designation of this submarine was Sen'yu type submarine

Yu-class

IJA Yu1-1944.jpg

Transport submarine Yu-1 | Yu-2 | Yu-3 | Yu-4 | Yu-5 | Yu-6 | Yu-7 | Yu-8 | Yu-9 | Yu-10 | Yu-11 | Yu-12 | Yu-13 | Yu-14 | Yu-15 | Yu-16 | Yu-17 | Yu-18 | Yu-19 | Yu-20 | Yu-21 | Yu-22 | Yu-23 | Yu-24 | Yu-1001 | Yu-1002 | Yu-1003 | Yu-1005 | Yu-1006 | Yu-1007 | Yu-1008 | Yu-1009 | Yu-1010 | Yu-2001 | Yu-2002 | Yu-3001 | Yu-3002 | Yu-3003

274 tonnes. This submarine was used by Imperial Japanese Army.

Submarine Tender

Jingei-class

Jingei (above) and Chōgei in 1924

Submarine tender JingeiChōgei

6,240 tonnes.

Taigei-class

Jingei (above) and Chōgei in 1924

Submarine tender Taigei

16,700 tonnes. Later converted into a light aircraft carrier.