AM type submarine

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Japan Japan
Operators: Imperial Japanese Navy Ensign Imperial Japanese Navy
Preceding class: A2 type submarine
In service: 1944
Out of service: 1945
Ships in Class
Ships in class: I-13, I-14
General Characteristics
Displacement: 3,603 tons surfaced
4,762 tons submerged
Length: 372.8 ft
Beam: 38.5 ft
Draft: 19.3 ft
Propulsion and power: 2 diesels: 4,400 hp
electric motors: 600 hp
Speed: 16.75 knots surfaced
5.5 knots submerged
Range: 21,000 nm at 16 knots
Test depth: 100 m (330 ft)
Complement: 118 officers and men
Armament: 6 × 533 mm forward torpedo tubes (12 torpedoes)

1 × 25 mm machine gun

2 × 25 mm 3-barrel machine gun
Aircraft complement: 2 Aichi M6A1 Seiran sea-planes

The AM (A Modified) type submarine was a large seaplane-carrying submarine of the Imperial Japanese Navy, with a hangar space for 2 aircraft. These giant submarines were originally of the A2 type, but their design was revised after construction started so that they could carry a second aircraft. The seaplanes were to be the Aichi M6A1, bomber carrying 800 kg bombs.

The range and speed of these submarines was remarkable (21,000 nm at 16 knots), but their underwater performance was compromised, making them easy targets. I-13 was sunk on 16 July 1945 by the destroyer escort USS Lawrence C. Taylor and aircraft action from escort carrier USS Anzio about 550 miles east of Yokosuka. I-14 surrendered at sea at the end of the war, and was later scuttled off Oahu in 1946.

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