Japanese Type 1 submarine

Holland 1-class submarine purchased during the Russo-Japanese War
Class overview
BuildersFore River Shipbuilding, Quincy, Massachusetts, USA
Operators Imperial Japanese Navy
Preceded bynone
Succeeded byKaigun Type 6
In commission1905–1921
Completed5
Retired5
General characteristics
TypeSubmarine
Displacement
  • 103.25 long tons (104.91 t) surfaced
  • 124 long tons (126 t) submerged
Length20.42 m (67.0 ft)
Beam3.63 m (11.9 ft)
Draft3.12 m (10.2 ft)
Installed power
  • 180 hp (130 kW) (gasoline engines)
  • 70 hp (52 kW) (electric motors)
Propulsion
Speed
  • 8.868 knots (16.424 km/h; 10.205 mph) surfaced
  • 6.871 knots (12.725 km/h; 7.907 mph) submerged
Range
  • 264 nm @ 8 knots (surfaced)
  • 20.25 nm @ 6.75 knots (submerged)
Test depth45.7 metres (150 ft)
Complement16 officers and enlisted
Armament2 × 18 in (460 mm) bow torpedo tubes (2 × torpedoes)
Japan's first fleet of submarines (Nos. 1 to 5, all Holland designs), assembled by Arthur Leopold Busch in the Naval Review of October 1905.

The No.1-class submarine (第一型潜水艦, Daiichi-gata sensuikan) was the first class submarine of the Imperial Japanese Navy. Consisting of five vessels, they were modified Holland-class vessels built in the United States.