Ex German U-511;
16/09/1943 Transferred to IJN;
Commissioned16/09/1943Kure;
Home Base:Yokosuka Naval Base;
16/09/1943-20/05/1944=Kure N.D;
20/05/1944-01/07/1944=Sub.Div.33; Kure Sub.Ron; Kure N.D;
01/07/1944-05/05/1945=Kure N.D;
05/05/1945-15/08/1945=51st Squadron; Maizuru ND;

CEO:
CO:Lt.Cdr.Taoka Kiyoshi [55]=16/09/1943-03/12/1943;
(A)CO:Lt.Uesugi Sadao= [65]03/12/1943-31/01/1944;
(A)CO:Lt.Yamazaki Toshio [67]=31/01/1944-30/04/1944;
CO:Lt.Shiizuka Mitsuo [66]=30/04/1944-05/07/1944;
CO:Lt.Yamamoto Yoshio [66]=05/07/1944-15/09/1944;
CO:Lt.Yamamoto Yasuhisa [67]=15/09/1944-30/11/1945;

16/09/1943 Renumbered RO-500;
Training Boat16/09/1943-15/08/1945;
/09/1945 Surrendered=Maizuru;
30/11/1945 Removed from Navy List;
30/04/1946;Scuttled;Gulf of Maizuru;
No Casualties;

KM=
08/12/1941-31/07/1942=4th U-Ron;
01/08/1942-15/09/1943=10th U-Ron;

CO:Lt.Friedrich Steinhoff=08/12/1941-17/12/1942;
CO:Lt.Fritz Schneewind=18/12/1942-16/09/1943;

31/05/1942-05/06/1942Peenemuende=Experimental submerged rocket firing trials;

IJN=0

[Lt.Friedrich Steinhoff]
16/07/1942Kiel-29/09/1942Lorient=n.Atlantic-Caribbean;
24/10/1942Lorient-28/11/1942Lorient=w.Morocco,n.Atlantic;
[Lt.Fritz Schneewind]
31/12/1942Lorient-08/03/1943Lorient=Azores Is.,n.Atlantic;
10/05/1943Lorient-16/07/1943Penang=Atlantic-Persian Gulf-Indian Ocean;(9 Passengers);
24/07/1943Penang-07/08/1943Kure=Transit;

KM =4

IJN=0

KM=
[Lt.Friedrich Steinhoff]
27/08/1942=Sunk Br.MS.San Fabian;13031t;n.Atlantic;18*09'N;74*38'W;
27/08/1942=Sunk Ne.MS.Rotterdam;8968t;n.Atlantic;18*09'N;74*38'W;
27/08/1942=Dam.US.ms.Esso Aruba;8773t;n.Atlantic;18*09'N;74*38'W;
[Lt.Fritz Schneewind]
09/01/1943=Sunk Br.MS.William Wilberforce;5004t;n.Atlantic;29* ?'N;26*53'W;
27/06/1943=Sunk US.MS.Sebastiano Cermeno;7194t;Persian Gulf;29* ?'N;50*10'E;
09/07/1943Sunk US.MS.Samuel Heintzelmann;7176t;Indian Ocean;09* ?'S;81* ?'E;

KM=
M/S Sunk =05@041373t
M/S Damaged =01@008773t
W/S Sunk =0
W/S Damaged =0
Total Sunk =05@041373t
Total Damaged =01@008773t
Total =06@050146t