Japanese submarine I-11

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History
Empire of Japan
Name: I-11
Builder: Kawasaki Yard, Kobe
Launched: 28 Feb 1941
Completed: 16 May 1942
Fate: Sunk, 17 February 1944
General characteristics
Class and type: Type A1 submarine
Displacement:
  • 2,966 tonnes (2,919 long tons) surfaced
  • 4,195 tonnes (4,129 long tons) submerged
Length: 113.7 m (373 ft 0 in) overall
Beam: 9.5 m (31 ft 2 in)
Draft: 5.3 m (17 ft 5 in)
Installed power:
Propulsion:
Speed:
  • 23.5 knots (43.5 km/h; 27.0 mph) surfaced
  • 8 knots (15 km/h; 9.2 mph) submerged
Range:
  • 16,000 nmi (30,000 km; 18,000 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 depth: 100 m (330 ft)
Crew: 100
Armament:
Aircraft carried: 1 × Yokosuka E14Y seaplane
Aviation facilities: 1 × catapult

The Japanese submarine I-11 was a Type A1 submarine built for the Imperial Japanese Navy (IJN) during the 1940s.

Design and description[edit]

The submarines of the A1 type were versions of the preceding J3 class with superior range, improved aircraft installation, and were fitted as squadron flagships.[1] They displaced 2,966 tonnes (2,919 long tons) surfaced and 4,195 tonnes (4,129 long tons) submerged. The submarines were 113.7 meters (373 ft 0 in) long, had a beam of 9.5 meters (31 ft 2 in) and a draft of 5.3 meters (17 ft 5 in). They had a diving depth of 100 meters (330 ft).[1]

For surface running, the boats were powered by two 6,200-brake-horsepower (4,623 kW) diesel engines, each driving one propeller shaft. When submerged each propeller was driven by a 1,200-horsepower (895 kW) electric motor. They could reach 19 knots (35 km/h; 22 mph) on the surface[2] and 8.25 knots (15.28 km/h; 9.49 mph) underwater. On the surface, the A1s had a range of 16,000 nautical miles (30,000 km; 18,000 mi) at 16 knots (30 km/h; 18 mph); submerged, they had a range of 90 nmi (170 km; 100 mi) at 3 knots (5.6 km/h; 3.5 mph).[3]

The boats were armed with four internal bow 53.3 cm (21.0 in) torpedo tubes and carried a total of 18 torpedoes. They were also armed with a single 140 mm (5.5 in)/40 deck gun and two twin 25 mm (1 in) Type 96 anti-aircraft guns.[3]

Unlike the J3 class, the aircraft hangar is integrated into the conning tower and faced forward; the positions of the deck gun and the catapult were exchanged so the aircraft can use the forward motion of the ship to supplement the speed imparted by the catapult.[3]

Construction and career[edit]

I-11 made her last report from Funafuti, in the Gilbert Islands on 11 January 1944.[4] She was sunk on 17 February by USS Nicholson.[5]

Notes[edit]

  1. ^ a b Bagnasco, p. 188
  2. ^ Chesneau, p. 200
  3. ^ a b c Carpenter & Dorr, p. 101
  4. ^ Boyd & Yoshida, p. 209
  5. ^ Rohwer, Jürgen; Gerhard Hümmelchen. "Seekrieg 1943, Februar". Württembergische Landesbibliothek Stuttgart (in German). Retrieved 31 July 2015. 

References[edit]

  • Bagnasco, Erminio (1977). Submarines of World War Two. Annapolis, Maryland: Naval Institute Press. ISBN 0-87021-962-6. 
  • Boyd, Carl & Yoshida, Akikiko (2002). The Japanese Submarine Force and World War II. Annapolis, Maryland: Naval Institute Press. ISBN 1-55750-015-0. 
  • Carpenter, Dorr B. & Polmar, Norman (1986). Submarines of the Imperial Japanese Navy 1904–1945. London: Conway Maritime Press. ISBN 0-85177-396-6. 
  • Chesneau, Roger, ed. (1980). Conway's All the World's Fighting Ships 1922–1946. Greenwich, UK: Conway Maritime Press. ISBN 0-85177-146-7. 
  • Hackett, Bob; Kingsepp, Sander (2012). "IJN Submarine I-11: Tabular Record of Movement". SENSUIKAN! Stories and Battle Histories of the IJN's Submarines. Combinedfleet.com. Retrieved 18 August 2015. 
  • Hashimoto, Mochitsura (1954). Sunk: The Story of the Japanese Submarine Fleet 1942 – 1945. Colegrave, E.H.M. (translator). London: Cassell and Company. ASIN B000QSM3L0. 
  • Stille, Mark (2007). Imperial Japanese Navy Submarines 1941-45. New Vanguard. 135. Botley, Oxford, UK: Osprey Publishing. ISBN 978-1-84603-090-1.