KRS type 1st class submarines




Displacement1142t standard, 1383t surface, 1768t submerged
Length82.0m wl, 85.2m oa
Width7.5m
Draught4.42m
Machinery2-shaft diesel and electric motor, 2400bhp surfaceC1100shp submerged
Speed14.5kt surfaceC7kt submerged
Armament4-53cm TT, 1-14cm/40cal gun, 42 mines
Complement51 - 70



Name Plan Builder Laid down Launch Complete
I-21
(SS-48)
(I-121)
FY1923Kawasaki, Kobe1924.10.201926. 3.301927. 3.31SS11938. 6. 1 renamed (I-121)
1945.11.30 disc
1946. 4.30 scuttled
I-22
(SS-49)
(I-122)
FY1923Kawasaki, Kobe1925. 2.281926.11. 81927.10.28SS11938. 6. 1 renamed (I-122)
1945. 6.10 sunk
(torpedoed, Sea of Japan)
[37.29N, 137.25E]
1945. 9.15 disc
I-23
(SS-50)
(I-123)
FY1923Kawasaki, Kobe1925. 6.121927. 3.191928. 4.28SS11938. 6. 1 renamed (I-123)
1942. 8.29 sunk
(action, off Guadalcanal)
[09.21S, 160.43E]
1942. 9. 1 missing
1942.10. 5 disc
I-24
(I-124)
FY1923Kawasaki, Kobe1926. 4.171927.12.121928.12.10SS11938. 6. 1 renamed (I-124)
1942. 1.20 sunk
(action, off Port Darwin)
[12.05S, 130.06E]
1942. 1.20 missing
1942. 4.30 disc



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Copyright © Hiroshi Nishida (Misohito), 2003.