I-121 ex I-21 ex No-48

Type Builder Name Laid Down Launched Completed Notes
KRS

KawasakiKobe

Updated:19/10/2012;

20/10/1924 30/03/1926 31/03/1927

Home Base:Kure Naval Base;
31/03/1927-01/11/1927=Yokosuka ND;
01/11/1927-01/12/ 1930=Sub.Div.9; Yokosuka Defence Div; Yokosuka ND;
01/12/ 1930-15/10/1931=Kure ND;
15/10/1931--01/10/1932=Sub.Div.13; Kure ND;
01/10/1932-15/11/1933=Sub.Div.13; Kure Defence Div; Kure ND;
15/11/1933-15/11/1935=Sub.Div.13; Kure ND;
15/11/1935-01/12/1937=Sub.Div.13; Kure Defence Ron; Kure ND;
01/12/1937-20/06/1938=Sub.Div.13; Sub.Ron.3;4th Fleet;Combined Fleet;
20/06/1938-01/05/1940=Sub.Div.13; Kure ND; 2nd Reserve;
01/05/1940-15/11/1940=Sub.Div.13; Sub.Ron.5; 4th Fleet; Combined Fleet;
15/11/1940-01/05/1941= Sub.Div.13;Kure ND;
01/05/1941-10/03/1942=Sub.Div.13; Sub.Ron.6; 3rd Fleet; Combined Fleet;
10/03/1942-10/04/1942=Sub.Div.13; Sub.Ron.6; Combined Fleet;
10/04/1942-14/07/1942=Sub.Div.13; 6th Fleet; Combined Fleet;
14/07/1942-15/04/1943=Sub.Div.13; Sub.Ron.7; 8th Fleet; Combined Fleet;
15/04/1943-31/05/1943=Sub.Div.13; Sub.Ron.7; South East Area Fleet;
31/05/1943-15/08/1943=Sub.Ron.7; South East Area Fleet;
15/08/1943-25/08/1943=Kure ND;
25/08/1943-01/12/1943=Sub.Div.18; Kure ND;
01/12/1943-31/01/1944=Sub.Div.18; Kure Sub.Ron; Kure ND;
31/01/1944-20/04.1945=Sub.Div.19; Kure Sub.Ron; Kure ND;
20/04/1945-15/09/1945=Sub.Div.33; Kure Sub.Ron; Kure ND;

15/03/1933-15/11/1933 ?=Reserve;
15/11/1935-20/03/1937 ?=Reserve;

CEO:Lt.Cdr.Kobayashi Mitsuyoshi [37]= / /1926-31/03/1927;
CO:Lt.Cdr.Kobayashi Mitsuyoshi [37]=31/03/1927-15/11/1927;
CO: Lt.Cdr.Nakamura Motoji [39]=15/11/1927-10/12/1928;
CO:Lt.Cdr.Sato Shiro [42]=10/12/1928-15/11/1930;
CO:Lt.Cdr.Kijima Moritsugu [44]=15/11/1930-01/12/1931;
CO:Lt.Cdr.Minakuchi Hyoe [46]=01/12/1931-01/12/1932;
CO:Lt.Cdr.Goto Hiroshi [48]=01/12/1932-15/11/1933;
CO:Lt.Cdr.Takatsuka Tadao [49]=15/11/1933-15/11/1934;
CO:Lt.Cdr.Tsuzuki Noboru [48]=15/11/1934-03/07/1935;
CO:Lt.Cdr.Fujii Akiyoshi [49]=03/07/1935-15/02/1936;
CO: ?
CO:Lt.Cdr.Yamada Kaoru [50]=20/03/1937-19/03/1938;
CO:Lt.Cdr.Koike Koreitsu [52]=19/03/1938-30/07/1938;
CO:Lt.Cdr.Hanabusa Hiroshi [51]=30/07/1938-20/03/1939;
CO:Lt.Cdr.Kusaka Toshio [53]=20/03/1939-15/08/1939;
CO:Lt.Cdr.Otani Kiyonori [49]=15/08/1939-30/10/1940;
CO:Lt.Cdr.Inaba Michimune [51]=30/10/1940-31/01/1941;
CO:Lt.Cdr.Kono Masamichi [52]=31/01/1941-02/06/1941;
CO:Cdr.Endo Shinobu [52]=02/06/1941-01/02/1942;
CO:Lt.Cdr.Fujimori Yasuo [56]=01/02/1942-15/10/1942;
CO:Lt.Cdr.Shimada Takeo [59]=15/10/1942-20/08/1943;
CO:Lt.Watanabe Masaki [63]=20/08/1943-23/02/1944;
CO:Cdr.Inaba Michimune [51]=23/02/1944-10/01/1945;
CO:Lt.Ueno Tadahiro [66]=10/01/1945-30/11/1945;

/08/1942 Shelled Guadalcanal;
07/12/1941 Laid 42 Mines=ne.Singapore;
12/01/1942 Laid 39 Mines=Darwin;

01/11/1924 Renumbered I-21;
01/06/1938 Renumbered I-121;
02/09/1943-15/08/1945=Training Boat;
09/03/1928=Damaged,Collision,IJN.DD.Shiokaze;
21/01/1942 Damaged,Depth Charges; Clarence Strait, Darwin;
27/08/1942 Damaged,US.A/C.Bombs;
02/09/1945 Surrendered=Maizuru;
30/11/1945 Removed from Navy List;
30/04/1946 Scuttled; Wakasa Bay;


SortiesbySub Ships Attacked

[Lt.Cdr.Koike Koreitsu] [52]
22/03/1938Port Arthur- l/03/1938Port Arthur=Liugong Is,Waihai Bay;(Troop transport,15men);
[Lt.Cdr.Otani Kiyonori] [49]
16/05/1940Sasebo-22/09/1940Yokosuka=Caroline Is.;Marshall Is.;Mariana Is.;Training;
11/10/1940=Yokohama Naval Review;
[Cdr.Endo Shinobu] [52]
/11/1941Kure-27/11/1941Samah,Hainan Is.=Transit;
01/12/1941Samah-12/12/1941CamranhBay(French.I.CH)=ne.Singapore;
18/12/1941CamranhBay-31/12/1941Davao=ManilaBay-Sulu Sea;
05/01/1942Davao-30/01/1942Davao=Darwin;
[Lt.Cdr.Fujimori Yasuo] [56]
09/02/1942Davao-28/02/1942StaringBay=Arafura Sea-TimorSea;(Repairs);
10/03/1942StaringBay-21/03/1942Kure=Transit(Repairs);
08/05/1942Kure-19/05/1942Kwajalein=Transit;
21/05/1942Kwajalein-l/06/1942Yokosuka=FrenchFrigateShoal-Hawaii;
16/07/1942Yokosuka-24/07/1942Truk=Transit;
31/07/1942Truk-04/08/1942Rabaul=Transit;
07/08/1942Rabaul-04/09/1942Rabaul=Solomons-Savo Is.-se.SanCristobal-Guadalcanal;(Repairs);
08/09/1942Rabaul-20/09/1942Kure=Transit(Repairs);
[Lt.Cdr.Shimada Takeo] [59]
01/12/1942Kure-10/12/1942Truk=Transit;
17/12/1942Truk-21/12/1942Rabaul=Transit;
23/12/1942Rabaul-27/12/1942Rabaul=Buna;NewGuinea(Supply);
04/01/1943Rabaul-25/01/1943Rabaul=se.NewGuinea;
29/01/1943Rabaul-10/02/1943Rabaul=Solomons,IndispensableReef(A/C FuelSupply);
14/02/1943Rabaul-18/02/1943Truk=Transit;
23/02/1943Truk-05/03/1943Kure=Transit(Repairs);
25/04/1943Kure-07/05/1943Rabaul=Transit;
10/05/1943Rabaul-17/05/1943Rabaul=Lae(Supply,26t;Rescued15men);
19/05/1943Rabaul-22/05/1943Rabaul=Lae(Supply;Aborted,engine trouble);
23/05/1943Rabaul- 29/05/1943Rabaul=Lae(Supply,26t);
01/06/1943Rabaul-06/06/1943Rabaul=Lae(Supply,26.5t;Rescued15men);
08/06/1943Rabaul-13/06/1943Rabaul=Lae(Supply26.5t;Rescued15men);
20/06/1943Rabaul-25/06/1943Rabaul=Lae(Supply;26.5t);
05/07/1943Rabaul-10/07/1943Rabaul=Lae(Supply);
25/07/1943Rabaul-30/07/1943Rabaul=Lae(Supply);
01/08/1943Rabaul-06/08/1943Rabaul=Lae(Supply);
18/08/1943Rabaul-23/08/1943=Lae(Supply);
[Lt.Watanabe Masaki] [63]
23/08/1943Rabaul-01/09/1943Kure=Transit;(Repairs);
[Lt.Ueno Tadahiro] [66]
12/06/1945Kure-13/06/1945Maizuru=Transit;

Sorties=20

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