Ha-3-class submarine

The Ha-3-class submarine (波三型潜水艦, Ha-san-gata sensuikan) was an early class of submarines of the Imperial Japanese Navy.

Japanese submarine Ha-3, in August 1911
Class overview
Name: Ha-3 class
Builders: Vickers, Barrow-in-Furness, UK
Operators:  Imperial Japanese Navy
Preceded by: Ha-1 class
Succeeded by: Ha-7 class
In commission: 1911–1929
Completed: 3
Retired: 3
General characteristics
Type: Submarine
Displacement:
  • 291 long tons (296 t) surfaced
  • 326 long tons (331 t) submerged
Length: 43.3 m (142 ft 1 in)
Beam: 4.14 m (13 ft 7 in)
Draft: 3.43 m (11 ft 3 in)
Installed power:
  • 600 hp (450 kW) (gasoline engines)
  • 300 hp (220 kW) (electric motors)
Propulsion:
Speed:
  • 12 knots (22 km/h; 14 mph) surfaced
  • 7 knots (13 km/h; 8.1 mph) submerged
Range:
  • 660 nmi (1,220 km; 760 mi) at 12 knots (surfaced)
  • 60 nmi (110 km; 69 mi) at 4 knots (7.4 km/h; 4.6 mph) (submerged)
Test depth: 30.5 m (100 ft)
Complement: 26 officers and enlisted
Armament:

Background

Along with placing orders with Vickers at Barrow-in-Furness in the UK for two British C-class submarines, which were commissioned into the Imperial Japanese Navy as the Ha-1 class, the Japanese government ordered another three vessels, which were received as knock-down kits. These kits were assembled at the Kure Naval Arsenal.[1]

Design

Physically almost identical to the Ha-1 class, the three vessels assembled in Japan incorporated a number of improvements, including extended bow for improved seaworthiness, improved rudder for surface handling, and an increase in the size of the bridge and conning tower.

Ships in class
  • Japanese submarine Ha-3 (波号第三潜水艦, Ha-go Dai-san sensuikan), laid down 1 August 1910; launched 5 March 1911; commissioned 12 August 1911 as Submersible No.10; reclassified as 2nd class submersible on 4 August 1916, reclassified as 3rd class submarine on 1 April 1919; renamed Ha-3 on 15 June 1923, decommissioned on 1 December 1929.[2]
  • Japanese submarine Ha-4 (波号第四潜水艦, Ha-go Dai-yon sensuikan), laid down 1 August 1910; launched 13 March 1911; commissioned 26 August 1911 as Submersible No.11; reclassified as 2nd class submersible on 4 August 1916, reclassified as 3rd class submarine on 1 April 1919; renamed Ha-4 on 15 June 1923; decommissioned on 1 December 1929.[2]
  • Japanese submarine Ha-5 (波号第五潜水艦, Ha-go Dai-go sensuikan), laid down 1 August 1910; launched 27 March 1911; commissioned 3 August 1911 as Submersible No.12; reclassified as 2nd class submersible on 4 August 1916, reclassified as 3rd class submarine on 1 April 1919; renamed Ha-5 on 15 June 1923; decommissioned on 1 December 1929.[2]

Notes
  1. Chesneau, Roger (1985). Conway's All the World's Fighting Ships, 1906–1921. Naval Institute Press. p. 246. ISBN 0-87021-907-3.
  2. Nishida, Materials of the Imperial Japanese Navy

References
  • Chesneau, Roger (1985). Conway's All the World's Fighting Ships, 1906–1921. Naval Institute Press. ISBN 0-87021-907-3.
  • Howarth, Stephen (1983). The Fighting Ships of the Rising Sun: The Drama of the Imperial Japanese Navy, 1895-1945. Atheneum. ISBN 0-689-11402-8.
  • Jentsura, Hansgeorg (1976). Warships of the Imperial Japanese Navy, 1869-1945. Annapolis, MD: Naval Institute Press. ISBN 0-87021-893-X.
  • Schencking, J. Charles (2005). Making Waves: Politics, Propaganda, And The Emergence Of The Imperial Japanese Navy, 1868-1922. Stanford University Press. ISBN 0-8047-4977-9.
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