I-48 was the last of three Type C cruiser submarines of the C2 sub-class built for the Imperial Japanese Navy. Commissioned in September 1944, she operated...

(later renumbered I-121), I-22 (later renumbered I-122) and I-23 (later renumbered I-123) — were the Imperial Japanese Navy's only submarine minelayers. They...

I-58 was a Japanese B3 type cruiser submarine that served in the final year of World War II. Her only significant wartime success came with a conventional...

I-8 was an Imperial Japanese Navy Junsen III (or J3)-type submarine commissioned in 1938 that served during World War II. Designed as submarine aircraft...

I-29, code-named Matsu (松, Japanese for "pine tree"), was a B1 type submarine of the Imperial Japanese Navy used during World War II on two secret missions...

I-26 was an Imperial Japanese Navy B1 type submarine commissioned in 1941. She saw service in the Pacific War theatre of World War II, patrolling off the...

I-68, later renumbered I-168, was an Imperial Japanese Navy Kaidai–type cruiser submarine of the KD6 sub-class commissioned in 1934. She served in World...

I-38 was an Imperial Japanese Navy B1 type submarine. Completed and commissioned in 1943, she served in World War II, operating on supply missions in the...

I-75, later I-175, was an Imperial Japanese Navy Kaidai-type cruiser submarine of the KD6B sub-class commissioned in 1938. During World War II, she took...

most varied and powerful submarine fleets. The Imperial Japanese Navy (IJN) acquired its first submarines during the Russo-Japanese War on 12 December 1904...

Manus. On 23 January 1945 with Conklin and Raby she sank the Japanese submarine I-48 (6) off Yap. She sailed from Ulithi on 18 March with the logistics group...

I-10 was an Imperial Japanese Navy Type A1 submarine that served during World War II. Designed as a submarine aircraft carrier, she was commissioned in...

I-1 was a J1 type submarine of the Imperial Japanese Navy. She was a large cruiser submarine displacing 2,135 tons and was the lead unit of the four submarines...

I-16 was one of five Type C cruiser submarines of the C1 sub-class built for the Imperial Japanese Navy, Commissioned in 1940, she deployed a midget submarine...

I-7 was an Imperial Japanese Navy J3 type submarine commissioned in 1937. She was a large cruiser submarine that served in World War II. She operated...

I-3 was an Imperial Japanese Navy J1 type submarine commissioned in 1926. She was a large cruiser submarine. She served in the Second Sino-Japanese War...

I-177 was an Imperial Japanese Navy Kaidai-type cruiser submarine of the KD7 subclass commissioned in 1942. She served during World War II, patrolling...

The second I-56 was an Imperial Japanese Navy Type B3 submarine. Completed and commissioned in June 1944, she served in the late stages of World War II...

Ro-48 was an Imperial Japanese Navy Kaichū type submarine of the K6 sub-class. Completed and commissioned in March 1944, she served in World War II and...

08734-5 The Maru Special, Japanese Naval Vessels No.31 Japanese Submarines I, Ushio Shobō (Japan), September 1979, Book code 68343-31 Cruiser submarine...

I-121, laid down in 1924 as Submarine No. 48 and known as I-21 from November 1924 to June 1938, was an I-121-class submarine of the Imperial Japanese...

I-66, later I-166, was a Kaidai-class cruiser submarine of the KD5 sub-class completed for the Imperial Japanese Navy in 1932. She served during World...

The second I-24 was one of five Type C cruiser submarines of the C1 sub-class built for the Imperial Japanese Navy. During World War II, she operated as...

Possibly attacked by H.M. submarine E51 in 54°47'N., 6°18'E. Sank British hospital ship REWA by torpedo in 50°48'N., 4°48'W. Claims 5 S.S., 2 sailing...

I-4 was an Imperial Japanese Navy J1 type submarine commissioned in 1929. She was a large cruiser submarine that served in the Second Sino-Japanese War...

Kō-hyōteki kō-gata, Target 'A', Type 'A') class was a class of Japanese midget submarines (Kō-hyōteki) used during World War II. They had hull numbers but...

The Japanese submarine I-5 was the first aircraft-carrying submarine in the Imperial Japanese Navy and operated during World War II. The sole member of...

I-44 was an Imperial Japanese Navy Type B2 submarine. Completed and commissioned in January 1944, she served in the late stages of World War II, she conducted...

by the Imperial Japanese Navy's failure to provide adequate escort forces for the nation's merchant fleet. Whereas Japanese submarine torpedoes of the...

I-2 was an Imperial Japanese Navy J1 type cruiser submarine commissioned in 1926. She served in the Second Sino-Japanese War and World War II. During the...