Type J1 submarine

I-1 in 1930
Class overview
Operators: Imperial Japanese Navy
Succeeded by: Type J1M submarine
In service: 1926 - 1944
Completed: I-1, I-2, I-3, I-4
General characteristics
Displacement: 2135 tons (surfaced) 2,791 tons (submerged)
Length: 320 ft (98 m)
Beam: 30 ft (9.1 m)
Draught: 16.5 ft (5.0 m)
Propulsion:

twin shaft MAN 10 cylinder 4 stroke diesels giving 6000 bhp

two electric motors of 2600 ehp
Speed: 18 knots (surface) 8 knots (submerged)
Range: 24,400 nm at 10 knots
Test depth: 80 m (260 feet)
Complement: 68 officers and men
Armament:

The Type J1 submarine (巡潜1型潜水艦 Junsen ichi-gata sensuikan, "Cruiser submarine Type 1"), also called I-1-class submarine (伊一型潜水艦 I-ichi-gata sensuikan) were large cruiser submarines (Junsen type submarines) of the Imperial Japanese Navy.

Four boats were built between 1926 and 1929. These boats, based on the KD2 and U-139 designs, were of a junsen, or cruiser, type with an impressive range of 24,000 nm. Elderly by 1941 they were among the first Japanese submarines converted to supply duty.

Notes

  1. Campbell, John Naval Weapons of World War Two ISBN 0-87021-459-4 p.191
  2. Submarine Type J-1

See also


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