Japanese submarine Ro-13

From Wikipedia, the free encyclopedia
History
Japan
NameSubmarine No. 23
BuilderKure Naval Arsenal, Kure, Japan
Laid down14 September 1918
Launched26 August 1919
Completed30 September 1920
Commissioned30 September 1920
RenamedRo-13 on 1 November 1924
Stricken1 April 1932
RenamedHaisen No. 2 on 1 April 1932
General characteristics
Class and typeKaichū type submarine (K2 subclass)
Displacement
  • 752 tonnes (740 long tons) surfaced
  • 1,019 tonnes (1,003.1 long tons) submerged
Length70.10 m (230 ft 0 in) overall
Beam6.10 m (20 ft 0 in)
Draft3.68 m (12 ft 1 in)
Installed power
  • 2,900 bhp (2,200 kW) (diesel)
  • 1,200 hp (890 kW) (electric motor)
Propulsion
  • Diesel-electric
  • 2 × Sulzer Mark II diesel engine, 75 tons fuel
  • 2 × electric motor
  • 2 x shafts
Speed
  • 16.5 knots (30.6 km/h; 19.0 mph) surfaced
  • 8.5 knots (15.7 km/h; 9.8 mph) submerged
Range
  • 6,000 nmi (11,000 km; 6,900 mi) at 10 knots (19 km/h; 12 mph) surfaced
  • 85 nmi (157 km; 98 mi) at 4 knots (7.4 km/h; 4.6 mph) submerged
Test depth30 m (98 ft)
Crew43
Armament

Ro-13, originally named Submarine No. 23, was an Imperial Japanese Navy Kaichū-Type submarine of the Kaichū II subclass. She was commissioned in 1920 and operated in the waters of Japan. She was stricken in 1932.

Design and description[]

The submarines of the Kaichu II sub-class were larger and had a greater range than the preceding Kaichu I subclass, but they had the same powerplant, so their greater size resulted in a loss of some speed.[1] They also had a modified conning tower, bow, and stern, and the stern was overhanging.[1] They displaced 752 tonnes (740 long tons) surfaced and 1,019 tonnes (1,003.1 long tons) submerged. The submarines were 70.10 meters (230 ft 0 in) long and had a beam of 6.10 meters (20 ft 0 in) and a draft of 3.68 meters (12 ft 1 in). They had a diving depth of 30 meters (98 ft).

For surface running, the submarines were powered by two 1,450-brake-horsepower (1,081 kW) Sulzer Mark II diesel engines, each driving one propeller shaft. When submerged each propeller was driven by a 600-horsepower (447 kW) electric motor. They could reach 16.5 knots (31 km/h; 19 mph) on the surface and 8.5 knots (15.7 km/h; 9.8 mph) underwater. On the surface, they had a range of 6,000 nautical miles (11,000 km; 6,900 mi) at 10 knots (19 km/h; 12 mph); submerged, they had a range of 85 nmi (157 km; 98 mi) at 4 knots (7.4 km/h; 4.6 mph).

The submarines were armed with six 450 mm (18 in) torpedo tubes, four internal tubes in the bow and two external tubes mounted on the upper deck, and carried a total of ten torpedoes. They were also armed with a single 76.2 mm (3.00 in) deck gun mounted aft of the conning tower.[1]

Construction and commissioning[]

Ro-13 was laid down as Submarine No. 23 on 14 September 1918 by the Kure Naval Arsenal at Kure, Japan.[2] Launched on 26 August 1919,[2] she was completed and commissioned on 30 September 1920.[2]

Service history[]

Upon commissioning, Submarine No. 23 was attached to the Kure Naval District and was assigned to the .[2] On 1 December 1920 she was reassigned to Submarine Division 14 in Submarine Squadron 1 in the 1st Fleet.[2] Submarine Division 14 was assigned to the Kure Defense Division and Kure Naval District on 1 July 1921, then to Submarine Squadron 2 in the 2nd Fleet on 1 December 1922.[2]

On 1 December 1923, Submarine No. 23 was transferred to Submarine Division 3, assigned to duty in the , and attached to the Yokosuka Naval District, and she remained in all three of those assignments for the remainder of her active career.[2] She was renamed Ro-13 on 1 November 1924.[2]

Ro-13 was stricken from the Navy list on 1 April 1932.[2] She was renamed Haisen No. 2 that day.[2]

Notes[]

  1. ^ a b c Gray, Randal, ed., Conway′s All the World′s Fighting Ships 1906–1921, Annapolis, Maryland: Naval Institute Press, 1985, ISBN 0 87021 907 3, p. 248.
  2. ^ a b c d e f g h i j "RO-13 ex No-23". iijnsubsite.info. 2017. Retrieved 15 October 2020.

References[]

  • "Rekishi Gunzō"., History of Pacific War Vol.17 I-Gō Submarines, Gakken (Japan), January 1998, ISBN 4-05-601767-0
  • Rekishi Gunzō, History of Pacific War Extra, "Perfect guide, The submarines of the Imperial Japanese Forces", Gakken (Japan), March 2005, ISBN 4-05-603890-2
  • The Maru Special, Japanese Naval Vessels No.43 Japanese Submarines III, Ushio Shobō (Japan), September 1980, Book code 68343-44
  • The Maru Special, Japanese Naval Vessels No.132 Japanese Submarines I "Revised edition", Ushio Shobō (Japan), February 1988, Book code 68344-36
  • The Maru Special, Japanese Naval Vessels No.133 Japanese Submarines II "Revised edition", Ushio Shobō (Japan), March 1988, Book code 68344-37
  • The Maru Special, Japanese Naval Vessels No.135 Japanese Submarines IV, Ushio Shobō (Japan), May 1988, Book code 68344-39
Retrieved from ""