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The Type AM (A Modified) submarine (巡潜甲型改二潜水艦, Junsen kō-gata kai-ni sensuikan, "Cruiser submarine type A modified 2"), also called I-13-class submarine (伊一三型潜水艦, I-jū-san-gata sensuikan) was a pair of large, aircraft-carrying cruiser submarines built for the Imperial Japanese Navy (IJN) during World War II.

Japanese submarine I-14 in 1945
Class overview
Operators Imperial Japanese Navy
Preceded byType A2 submarine
In service1944–45
Planned7
Completed2
Cancelled5
Lost1
Scrapped1
General characteristics
Displacement
  • 3,661 tonnes (3,603 long tons) surfaced
  • 4,838 tonnes (4,762 long tons) submerged
Length113.7 m (373 ft 0 in) overall
Beam11.7 m (38 ft 5 in)
Draft5.9 m (19 ft 4 in)
Installed power
  • 4,400 bhp (3,300 kW) (diesel)
  • 600 hp (450 kW) (electric motor)
Propulsion
  • Diesel-electric
  • 2 × diesel engine
  • 2 × electric motor
Speed
  • 16.75 knots (31.02 km/h; 19.28 mph) surfaced
  • 5.5 knots (10.2 km/h; 6.3 mph) submerged
Range
  • 21,000 nmi (39,000 km; 24,000 mi) at 16 knots (30 km/h; 18 mph) surfaced
  • 60 nmi (110 km; 69 mi) at 3 knots (5.6 km/h; 3.5 mph) submerged
Test depth100 m (330 ft)
Crew108
Armament
  • 6 × bow 533 mm (21 in) torpedo tubes
  • 1 × 14 cm (5.5 in) deck gun
  • 2 × triple, 1 × single 25 mm (1 in) Type 96 anti-aircraft guns
Aircraft carried2 × Aichi M6A Seiran floatplane
Aviation facilities1 × 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, which was fitted for a pair of Aichi M6A1 floatplane bombers.[1] 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).[2]

The machinery was reduced in power from the A2-class boats. 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.[3] 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).[4]

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.[4]

In comparison to the A2 class, 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 cranes on the forward deck were used to recover the floatplanes.[4]


Boats


Seven units were ordered, but only two were completed, while construction of two more was abandoned in March 1945. Construction of the remaining three submarines never started.[3]


See also



Notes


  1. Layman & McLaughlin, p. 176
  2. Bagnasco, p. 189
  3. Chesneau, p. 200
  4. Carpenter & Dorr, p. 110
  5. HENRY FOUNTAIN (November 12, 2009). "2 Sunken Japanese Subs Are Found Off Hawaii". New York Times.

References



На других языках


- [en] Type AM submarine

[ru] Подводные лодки типа I-13

Подводные лодки типа I-13 (яп. 伊十三型潜水艦), также известные как тип «AM» — серия японских дизель-электрических подводных лодок периода Второй мировой войны. Головная лодка серии была заложена как представитель типа I-12, но в процессе строительства перестроена в авианесущую. Всего планировалось построить семь лодок серии, но уже в 1943 году это число было сокращено до четырёх, из которых были достроены лишь две. Первоначально планировалось их использование в роли патрульных, но ближе к концу войны решено было использовать их как подводные авианосцы для специальных операций, аналогично подводным лодкам типа I-400. Из двух вступивших в строй подводных лодок, одна погибла в бою, другая же была пущена на слом после капитуляции Японии



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