Submarines of the Imperial Japanese Navy
The submarines ("I-52"-class) were submarines of the Imperial Japanese Navy, designed and built by Mitsubishi Corporation, between 1943 and 1944, as cargo carriers. They were quite long and carried a crew of up to 94 officers and enlisted. They also had a long cruising range at a speed of .
Japanese submarine I-70
The Japanese submarine "I-70" was a "Kaidai" type of cruiser submarine active in World War II. A KD6 boat, "I-70" was built for the Imperial Japanese Navy (IJN) in the early 1930s. At that time it was commanded by Commander Sano Takao.