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I-121-class submarine

I-121 (as I-21) in 1930.
Class overview
NameI-121 class submarine
BuildersKawasaki Corporation
Operators Imperial Japanese Navy
Built1924–1928
In commission1927–1945
Planned6
Completed4
Cancelled2
Lost3
Retired1
General characteristics
TypeMinelaying submarine
Displacement
  • 1,142 long tons (1,160 t) surfaced
  • 1,768 long tons (1,796 t) submerged
Length85.20 m (279 ft 6 in) overall
Beam7.52 m (24 ft 8 in)
Draft4.42 m (14 ft 6 in)
Propulsion
  • 2 × Rauschenbach Mk.1 diesels
  • 2,400 bhp surfaced
  • 1,100 shp submerged
  • 2 shafts
Speed
  • 14.9 knots (27.6 km/h) surfaced
  • 6.5 knots (12.0 km/h) submerged
Range
  • 10,500 nmi (19,400 km) at 8 knots (15 km/h) surfaced
  • 40 nmi (74 km) at 4.5 knots (8.3 km/h) submerged
Test depth75 m (246 ft)
Complement51
Armament

The I-121-class submarine (伊百二十一型潜水艦, I-hyaku-ni-jū-ichi-gata sensuikan) was a class of minelayer submarine in the Imperial Japanese Navy (IJN), serving from the 1920s to World War II. The IJN classed it as a Kiraisen type submarine (機雷潜型潜水艦, Kiraisen-gata sensuikan). The type name, was shortened from Kirai Fusetsu Sensuikan (機雷敷設水艦, Minelaying submarine).

  1. ^ Campbell, John Naval Weapons of World War Two ISBN 0-87021-459-4 p.191

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Kiraisen-Klasse German زیردریایی کلاس آی-۱۲۱ FA Classe I-121 French 伊百二十一型潜水艦 Japanese Подводные лодки типа I-121 Russian I-121 (lớp tàu ngầm) VI

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