I-12 was an Imperial Japanese Navy Type A2 long-range fleet submarine that served during World War II. Designed as a submarine aircraft carrier, she was...

I-201-class submarines (伊二百一型潜水艦, I-ni-hyaku-ichi-gata sensuikan) were submarines of the Imperial Japanese Navy during World War II. These submarines...

I-400 (伊号第四百潜水艦, I-gō-dai yon-hyaku-sensuikan) was an Imperial Japanese Navy Sentoku-type (or I-400-class) submarine commissioned in 1944 for service in...

I-52 (伊号第五二潜水艦 (伊52), I Gō Dai Gojūni Sensuikan (I Gojūni), I-52 submarine (I-52)), code-named Momi (樅, "fir tree") was a Type C3 cargo submarine of the...

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-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...

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

I-401 (伊号第四百一潜水艦, I-gō-dai yon-hyaku-ichi-sensuikan) was an Imperial Japanese Navy Sentoku-type (or I-400-class) submarine commissioned in 1945 for service...

I12 or I-12 may refer to: I12 engine Interstate 12, a highway in the U.S. state of Louisiana Japanese submarine I-12 Jönköping Regiment (1816–1927), a...

I-201 was the name ship of her class of high-speed submarines built for the Imperial Japanese Navy during World War II. She was commissioned in February...

(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-70 was an Imperial Japanese Navy Kaidai-type cruiser submarine commissioned in 1935. While supporting the Japanese attack on Pearl Harbor at the beginning...

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-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-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...

The Japanese submarine I-176 (I-76, until 20 May 1942) was a "Kaidai" type of cruiser submarine active in World War II. A KD7 sub-class boat, I-176 was...

I-21 (伊号第二一潜水艦, I-gō Dai Nijū-ichi sensui-kan) was a Japanese Type B1 submarine which saw service during World War II in the Imperial Japanese Navy. She...

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-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...

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...

The I-400-class submarine (伊四百型潜水艦, I-yon-hyaku-gata sensuikan) Imperial Japanese Navy (IJN) submarines were the largest submarines of World War II, with...

I-202 was the only one out of three I-201-class submarines of the Imperial Japanese Navy to be completed during World War II. The I-201 class were of...

I-19 was a Japanese Type B1 submarine which damaged and destroyed several enemy ships during World War II while serving in the Imperial Japanese Navy....

I-402 (伊号第四百二潜水艦, I-gō-dai yon-hyaku-ni-sensuikan) was an Imperial Japanese Navy Sentoku-type (or I-400-class) submarine commissioned in 1945 for service...

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-13 was an Imperial Japanese Navy Type A Mod.2 submarine that served during World War II. Designed as a submarine aircraft carrier, she was commissioned...

I-69, later I-169, was an Imperial Japanese Navy Kaidai-class cruiser submarine of the KD6 sub-class commissioned in 1935. She served in World War II...

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-15 was an Imperial Japanese Navy B1 type submarine commissioned in 1940 that served during World War II. She supported the Japanese attack on Pearl...

I-25 (イ-25) was a B1 type (I-15-class) submarine of the Imperial Japanese Navy that served in World War II, took part in the Attack on Pearl Harbor, and...