Submarines of the Imperial Japanese Navy
The ("I-15"-class) submarines (, , , , , , , , , , , , , , , , , , , ) were the most numerous type of submarines of the Imperial Japanese Navy during World War II. In total 20 were made, starting with "I-15", the class ship. These were fast, very long ranged, and carried a single Yokosuka E14Y seaplane, located in a hangar in front of the conning tower, launched by a catapult.
Japanese submarine I-165
The Japanese submarine "I-165 (I-65", until 20 May 1942) was a "Kaidai" type of cruiser submarine active in World War II. A KD5 sub-class boat, "I-165" was built for the Imperial Japanese Navy (IJN) during the early 1930s.