Japanese submarine I-179
The Japanese submarine I-179 was a Kaidai type cruiser submarine of the KD7 sub-class built for the Imperial Japanese Navy during the 1940s. She was lost with all hands when a valve was accidentally left open during her sea trials in July 1943. Her wreck was later salvaged and scrapped in 1957.
Design and description
The submarines of the KD7 sub-class were medium-range attack submarines developed from the preceding KD6 sub-class. They displaced surfaced and submerged. The submarines were long, had a beam of and a draft of. The boats had a diving depth of and a complement of 86 officers and crewmen.For surface running, the boats were powered by two diesel engines, each driving one propeller shaft. When submerged each propeller was driven by a electric motor. They could reach on the surface and underwater. On the surface, the KD7s had a range of at ; submerged, they had a range of at.
The boats were armed with six internal torpedo tubes, all in the bow. They carried one reload for each tube; a total of a dozen torpedoes. They were originally intended to be armed with two twin-gun mounts for the Type 96 anti-aircraft gun, but a [12 cm 11th Year Type naval gun|] deck gun for combat on the surface was substituted for one 25 mm mount during construction.