Ships hit by U 21
See the profile page for U 21
| Date | U-boat | Commander | | Name of ship | Tons | Nat. |
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| 5 Sep 1914 | U 21 | Otto Hersing |  | Pathfinder (hms) | 2,940 |  | br |
| 23 Nov 1914 | U 21 | Otto Hersing | | Malachite | 718 | | br |
| 26 Nov 1914 | U 21 | Otto Hersing | | Primo | 1,366 | | br |
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| 30 Jan 1915 | U 21 | Otto Hersing | | Ben Cruachan | 3,092 | | br |
| 30 Jan 1915 | U 21 | Otto Hersing | | Kilcoan | 456 | | br |
| 30 Jan 1915 | U 21 | Otto Hersing | | Linda Blanche | 369 | | br |
| 25 May 1915 | U 21 | Otto Hersing | | Triumph (hms) | 11,985 | | br |
| 27 May 1915 | U 21 | Otto Hersing | | Majestic (hms) | 14,900 | | br |
| 4 Jul 1915 | U 21 | Otto Hersing | | Carthage | 5,601 |  | fr |
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| 1 Feb 1916 | U 21 | Otto Hersing | | Belle Of France | 3,876 | | br |
| 8 Feb 1916 | U 21 | Otto Hersing | | Admiral Charner | 4,750 | | fr |
| 30 Apr 1916 | U 21 | Otto Hersing | | City Of Lucknow | 3,669 | | br |
| 26 Oct 1916 | U 21 | Otto Hersing | | Marina G. | 154 |  | it |
| 28 Oct 1916 | U 21 | Otto Hersing | | GILDA R. | 37 | | it |
| 28 Oct 1916 | U 21 | Otto Hersing | | Tre Fratelli D. | 190 | | it |
| 31 Oct 1916 | U 21 | Otto Hersing | | Glenlogan | 5,838 | | br |
| 1 Nov 1916 | U 21 | Otto Hersing | | Bernardo Canale | 1,346 | | it |
| 1 Nov 1916 | U 21 | Otto Hersing | | Torero | 767 | | it |
| 2 Nov 1916 | U 21 | Otto Hersing | | SAN ANTONIO O. | 113 | | it |
| 3 Nov 1916 | U 21 | Otto Hersing | | San Giorgio | 258 | | it |
| 23 Dec 1916 | U 21 | Otto Hersing | | Benalder (d.) | 3,044 | | br |
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| 16 Feb 1917 | U 21 | Otto Hersing | | Mayola | 146 | | br |
| 16 Feb 1917 | U 21 | Otto Hersing | | Rose Dorothea | 147 | | br |
| 17 Feb 1917 | U 21 | Otto Hersing | | EMILIA I | 25 |  | pt |
| 17 Feb 1917 | U 21 | Otto Hersing | | LIMA | 108 | | pt |
| 20 Feb 1917 | U 21 | Otto Hersing | | Cacique | 2,917 | | fr |
| 22 Feb 1917 | U 21 | Otto Hersing | | Bandoeng | 5,851 |  | nl |
| 22 Feb 1917 | U 21 | Otto Hersing | | Eemland | 3,770 | | nl |
| 22 Feb 1917 | U 21 | Otto Hersing | | Gaasterland | 3,917 | | nl |
| 22 Feb 1917 | U 21 | Otto Hersing | | Jacatra | 5,373 | | nl |
| 22 Feb 1917 | U 21 | Otto Hersing | | Noorderdijk | 7,166 | | nl |
| 22 Feb 1917 | U 21 | Otto Hersing | | Normanna | 2,900 |  | nw |
| 22 Feb 1917 | U 21 | Otto Hersing | | Zaandijk | 4,189 | | nl |
| 22 Feb 1917 | U 21 | Otto Hersing | | Menado (d.) | 5,874 | | nl |
| 22 Apr 1917 | U 21 | Otto Hersing | | Giskö | 1,643 | | nw |
| 22 Apr 1917 | U 21 | Otto Hersing | | Theodore William | 3,057 | | nw |
| 29 Apr 1917 | U 21 | Otto Hersing | | Askepot | 1,793 | | nw |
| 30 Apr 1917 | U 21 | Otto Hersing | | Borrowdale | 1,268 |  | ru |
| 3 May 1917 | U 21 | Otto Hersing | | Lindisfarne | 1,703 | | ru |
| 6 May 1917 | U 21 | Otto Hersing | | Adansi | 2,644 | | br |
| 8 May 1917 | U 21 | Otto Hersing | | Killarney | 1,413 | | br |
| 27 Jun 1917 | U 21 | Otto Hersing | | Baltic | 1,125 |  | sw |
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| 122,498 | | | 40 ships sunk (113,580 tons) and 2 ships damaged (8,918 tons).
Legend
(d.) means the ship was damaged.
We have a picture of this vessel.
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Below is a map showing the locations of the attacks in question:
In some cases the exact positions of losses are not known, those are not shown.
Return to the page for U 21
