Japanese submarine I-13
|Empire of Japan|
|Laid down:||4 February 1943|
|Launched:||30 November 1943|
|Commissioned:||16 December 1944|
|Fate:||Sunk, 16 July 1945|
|Class and type:||Type AM submarine|
|Length:||113.7 m (373 ft 0 in) overall|
|Beam:||11.7 m (38 ft 5 in)|
|Draft:||5.9 m (19 ft 4 in)|
|Test depth:||100 m (330 ft)|
|Aircraft carried:||2 × Aichi M6A Seiran floatplane|
|Aviation facilities:||1 × catapult|
Design and description
The Type AM submarines were versions of the preceding A2 class with the command facilities replaced by an enlarged aircraft hangar were fitted for a pair of Aichi M6A1 floatplane bombers. They displaced 3,661 tonnes (3,603 long tons) surfaced and 4,838 tonnes (4,762 long tons) submerged. The submarines were 113.7 meters (373 ft 0 in) long, had a beam of 11.7 meters (38 ft 5 in) and a draft of 5.9 meters (19 ft 4 in). They had a diving depth of 100 meters (330 ft).
For surface running, the boats were powered by two 2,200-brake-horsepower (1,641 kW) diesel engines, each driving one propeller shaft. When submerged each propeller was driven by a 300-horsepower (224 kW) electric motor. They could reach 16.75 knots (31.02 km/h; 19.28 mph) on the surface and 5.5 knots (10.2 km/h; 6.3 mph) underwater. On the surface, the AMs had a range of 21,000 nautical miles (39,000 km; 24,000 mi) at 16 knots (30 km/h; 18 mph); submerged, they had a range of 60 nmi (110 km; 69 mi) at 3 knots (5.6 km/h; 3.5 mph).
The boats were armed with six internal bow 53.3 cm (21.0 in) torpedo tubes and carried a total of a dozen torpedoes. They were also armed with a single 140 mm (5.5 in)/40 deck gun and two triple and one single mount for 25 mm (1 in) Type 96 anti-aircraft guns.
The aircraft hangar was enlarged to accommodate two aircraft. It was offset to the right of, and was faired into the base of, the conning tower which protruded over the left side of the hull. A single catapult was positioned on the forward deck. Two folding crane on the forward deck were used to recover the floatplanes.
Construction and career
The submarine was built at the Kawasaki shipyard in Kobe. I-13 was lost in the Pacific at some point after 11 July 1945, the date of her departure from Japan for Truk. It is possible she was sunk during an anti-submarine warfare operation on 16 July 1945 by aircraft from the escort carrier Anzio and the destroyer escort Lawrence C Taylor.
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