Ha-7-class submarine

Japanese submarine Ha-7, in trials off Kure, 1916
Class overview
BuildersKure Naval Arsenal, Japan
Operators Imperial Japanese Navy
Preceded byHa-3 class
Succeeded byKaichū type
In commission1916–1929
Completed2
Retired2
General characteristics
TypeSubmarine
Displacement
  • 286 long tons (291 t) surfaced
  • 321 long tons (326 t) submerged
Length43.3 m (142 ft 1 in)
Beam4.14 m (13 ft 7 in)
Draft3.43 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 8.5 knots (15.7 km/h; 9.8 mph) (submerged)
Test depth30.5 m (100 ft)
Complement26 officers and enlisted
Armament

The Ha-7-class submarine (波七型潜水艦, Ha-nana-gata sensuikan) was an early class of submarines of the Imperial Japanese Navy. It was also called the "Vickers C-3 class".[1]

  1. ^ Chesneau, Roger (1985). Conway's All the World's Fighting Ships 1906–1921. Naval Institute Press. p. 246. ISBN 0-87021-907-3.