Submarines of the Imperial Japanese Navy
Imperial Japanese Navy (IJN) submarines formed by far the most varied fleet of submarines of World War II, including manned torpedoes ("Kaiten"), midget submarines ("Kō-hyōteki", ), medium-range submarines, purpose-built supply submarines (many used by the Imperial Japanese Army, see Type 3), fleet submarines (many of which carried an aircraft), submarines with the highest submerged speeds of the conflict ("Sentaka" ), and submarines able to carry multiple bombers (World War II's largest submarine, the Sentoku ). They were also equipped with the most advanced torpedo of the conflict, the oxygen-fuelled Type 95 (which are sometimes confused with the famed Type 93 Long Lance torpedo).
Japanese submarine I-41
I-41 was a Japanese B2 type submarine. She was completed at Kure Navy Yard on 18 September 1943, whereupon she entered into service with the Imperial Japanese Navy Yokosuka Naval District, SubRon 11, and sailed to Yokosuka for final trials under the command of Lt. Commander Tamori Yoshimatsu. This was completed by 15 December 1943 and command was transferred to Lt. Commander Itakura Mitsuma. "I-41" was reassigned to the Sixth Fleet in SubRon 1's Sub Division 15.