Japanese submarine I-7
Type J3 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. Wikipedia
Launched: July 3, 1935
Place built: Kure, Hiroshima, Japan
Builder: Kure Naval Arsenal
Aircraft carried: 1 × Watanabe E9W1
Depth: 7.70 m (25 ft 3 in)