Submarine Division 1

Activated
Deactivated
Boats

Formations
Successes
Notes

01/08/1905
15/11/1939
30/12/1944
01/04/1929
25/09/1943
15/09/1945

No-1=01/08/1905-01/12/1916
No-2=05/09/1905-01/12/1916
No-3=05/09/1905-02/11/1918
 No-4=01/10/1905-02/11/1918
No-5=01/10/1905-02/11/1918
No-6=17/04/1909-02/11/1918
No-7=17/04/1909-02/11/1918
No-1=02/11/1918-30/04/1921
No-2=02/11/1918-30/04/1921
HA-6=02/11/1918-01/11/1919
HA-7=01/11/1919-15/03/1921
HA-8=01/11/1919-15/03/1921
HA-1=15/03/1921-01/04/1929
HA-2=15/03/1921-01/04/1929
01/04/1929=Deactivated;

I-19=15/11/1939-15/11/1940
[Transferred to Sub.Div.2 prior to completion]
I-15=[15/11/1939] 30/09/1940-01/02/1942
I-16=15/11/1940-25/09/1943
I-17=[15/11/1939] 24/01/1941-01/02/1942
I-18=01/02/1942-01/04/1943+
I-20=01/02/1942-25/09/1943
I-21=15/12/1942-25/09/1943
I-24=15/12/1942-01/08/1943+
25/09/1943=Deactivated:
I-13=30/12/1944-15/09/1945+
I-400=30/12/1944-15/09/1945
I-401=08/01/1945-15/09/1945
I-14=14/03/1945-15/09/1945
I-402=24/07/1945-15/09/1945
15/09/1945=Deactivated:

[]=Sub.Div.1 prior to completion;

Sub.Tenders:
Karasaki =
04/07/1905-28/08/1912;
Toyohashi=Flagship;
/12/1905- / /19=
Submarine Depot Ship;

Yokosuka ND=
Established=13/01/1905
Yokosuka ND=
01/08/1905-16/10/1908
Kure ND=
16/10/1908-17/04/1911
Kure Torpedo Group; Kure ND=
17/04/1911-01/04/1913
Kure Defence Div.:Kure ND=
01/04/1913-02/11/1918
Yokosuka Defence Div.;Yokosuka ND=
02/11/1918-20/03/1929
Yokosuka ND=
20/03/1929-01/04/1929
01/04/1929-15/11/1939=Deactivated;
2nd Reserve;Yokosuka ND=
15/11/1939-15/11/1940
Sub.Ron.1;6thFleet;Combined Fleet=
15/11/1940-09/01/1942
6th Fleet;Combined Fleet=
09/01/1942-10/03/1942
Sub.Ron.8; 6thFleet;Combined Fleet=
10/03/1942-04/08/1943
Sub.Ron.1;6thFleet;Combined Fleet=
04/08/1943-25/09/1943
25/09/1943-30/12/1944=Deactivated;
6thFleet;Combined Fleet;
30/12/1944-15/09/1945;
15/09/1945=Deactivated;

 

W'ship sunk:
0;
W'ship dam:
02@029564t;
M'ship sunk:
20@104563t;
M'ship dam:
04@024608t;
Total sunk:
20@104563t;
Total dam:
06@054172t;
Total:
26@158735t;
 CO:01/08/1905-24/02/1906=
Cdr.Oguri Kozaburo; [15]
CO:24/02/1906-20/03/1906=
Lt.Cdr.Tojo Meiji; [21]
CO:20/03/1906-30/10/1907=
Cdr.Matsumura Junichi; [18]
CO:30/10/1907-23/12/1908=
Lt.Cdr.Tojo Meiji; [21]
CO:23/12/1908-17/04/1909=
Lt.Cdr.Miyaji Tamisaburo; [25]
CO:17/04/1909-01/12/1909=
Cpt.Ide Kenji; [16]
CO:01/12/1909-01/04/1910=
Cpt.Hiraoka Teiichi; [16]
CO:01/04/1910-17/12/1910=
Cdr.Yoshikawa Yasuhira; [22]
(A)CO:17/12/1910-17/04/1911=
Cdr.Imaizumi Tetsutaro; [25]
CO:17/04/1911-05/11/1913=
Cdr.Imaizumi Tetsutaro; [25]
CO:05/11/1913-13/12/1915=
Lt.Cdr/Cdr.Fukuda Ichiro; [26]
CO:
(A)CO:10/06/1922-01/12/1923=
Lt.Cdr.Shirane Teisuke; [34]
CO:
01/04/1929=Deactivated;
CO:15/11/1940-11/08/1941=
Cpt.Ishizaki Noboru; [42]
CO:11/08/1941-01/02/1942=
Cpt.Imazato Hiroshi; [45]
CO:01/02/1942-26/08/1942=
Cpt.Imaizumi Yoshijiro; [44]
CO:26/08/1942-11/02/1943=
Cpt.Ota Nobunosuke; [47] +KIA (I-18);
CO:11/02/1943-25/03/1943=
Vacant;
CO:25/03/1943-25/09/1943=
Cpt.Iwagami Hidetoshi; [46]
25/09/1943=Deactivated;
CO:15/12/1944-29/08/1945=
Cpt.Ariizumi Tatsunosuke; [51] +Suicide
(I-401);
29/08/1945-15/09/1945=
Vacant; ?
15/09/1945=Deactivated;

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