U-boat Kriegstagebücher (KTB)

        This project is a collaborative effort.  The records were made available by others and the vast majority of the work to translate and prepare them for presentation on the web was performed by a very talented team.  The administrator is deeply grateful to the following individuals who have contributed their time and expertise to this project.
        KTBs were made available by German U-boat historians Rainer Busch and Roland Berr.  Rainer is the author of German U-Boat Commanders of World War II.  Roland is the producer of daily summaries from KTBs of the U-Bootwaffe which are available on the Ubootwaffe.net website.
Click the icon to proceed to the Uboatwaffe.net website featuring Roland Berr's KTB of the U-Bootwaffe
        Translation of the initial KTBs was done by Uboat.net crew member Ranier Kolbicz of Switzerland with editing and other assistance by United States U-boat researcher Ken Dunn.  Other contributors include Christine Hillmann of Brazil, retired Fregattenkapitän Jürgen Meyer-Brenkhof, Jan Kockrow, and Thorsten Bergmann of Germany and Harald Jazdziewski, a native German who now lives in the United States.

Click the icon to view the associated record
U-boat
CO
Covering Period
Operation/Significant Events
U-37
Werner Hartmann
5 OCT  39 - 8 NOV 39
2nd Patrol - North Atlantic/ Wolfpack Commander
U-96
Lehmann-Willenbrock
27 OCT 41 - 6 Dec 41

7th patrol - North Atlantic/Oak Leaves Patrol (basis of Buchheim's novel Das Boot)

U-100
Joachim Schepke
11 SEP 40 - 25 SEP 40

2nd patrol - North Atlantic/7 ships were sunk in three hours from convoy HX-72

U-107
Harald Gelhaus
21 APR 42 - 11 JUL 42

6th Patrol/Caribbean - US East Coast
U-109
Heinrich Bleichrodt
27 DEC 41 - 23 FEB 42

4th patrol - Operation Drumbeat patrol to Canadian and American waters
U-123
Reinhard Hardegen
23 NOV 41 - 9 FEB 42

7th patrol - Operation Drumbeat patrol to the US East Coast
U-123
Reinhard Hardegen
2 MAR 42 - 2 MAY 42
8th patrol - Hardegen's second patrol to the US East Coast
U-130
Ernst Kals
27 DEC 41 - 25 FEB 42
2nd patrol - Operation Drumbeat patrol to the US East Coast
U-154
Oskar-Heinz Kusch
20 MAR 43 - 6 JUL 43
5th patrol  - South Atlantic/Brazilian waters
U-156
Werner Hartenstein
20 AUG 42 - 16 NOV 42
4th Patrol - South Atlantic/ LACONIA Incident
U-172
Carl Emmernann
29 MAY 43 - 7 SEP 43

5th patrol - South Atlantic/Brazilian waters - returned with survivors of U-604

U-461
Wolf-Harro Stiebler
20 APR 43 - 30 MAY 43

5th patrol - North Atlantic
U-466
Gerhard Thäter
29 JUN 43 - 16 AUG 43

3rd patrol - South Atlantic waters - aborted after air attack
U-518
Friedrich-Wilhelm Wissmann
11 JAN 43 - 27 APR 43
2nd patrol - Brazilian waters
U-552
Erich Topp
25 OCT 41 - 26 NOV 41
6th patrol - North Atlantic/ Sinking of USS Reuben James
U-552
Erich Topp
9 JUN 42 - 19 JUN 42
9th patrol - North Atlantic/ Operations against HG-84
U-604
Horst Höltring
4 AUG 42 - 8 SEP 42
1st patrol - North Atlantic
U-604
Horst Höltring
14 OCT 42 - 5 NOV 42
2nd patrol - North Atlantic/ Operations against SL-125
U-604
Horst Höltring
26 NOV 42 - 31 DEC 42
3rd patrol - North Atlantic
U-628
Heinrich Hasenschar
8 APR 43 - 19 MAY 43
3rd patrol - North Atlantic/ Operations against ONS 5
U-756
Klaus Harney
15 AUG 42 - 1 SEP 42
1st patrol - North Atlantic/Boat lost to escorts of SC-97/ BdU Reconstructed KTB
U-990
Hubert Nordheimer
22 MAY 44 - 25 MAY 44
4th patrol - Northern waters/Boat lost to air attack/BdU Reconstructed KTB
KTB Notes