September 1917
This is the full listing of all ships hit during September 1917. You can click on any of the links for further information on either ship, U-boat, commander or convoy.
| Date | U-boat | Commander | | Name of ship | Tons | Nat. |
| |
| 1 Sep 1917 | U 19 | Johannes Spieß | | Akaroa | 1,348 |  | nw |
| 1 Sep 1917 | U 28 | Georg Schmidt | | Dront | 3,488 |  | ru |
| 1 Sep 1917 | U 52 | Hans Walther | | Tarapaca | 2,506 |  | fr |
| 1 Sep 1917 | UC 65 | Max Viebeg | | Peronne | 3,342 |  | fr |
| 1 Sep 1917 | UC 69 | Hugo Thielmann | | Erato | 2,041 |  | br |
| 1 Sep 1917 | UC 74 | Wilhelm Marschall | | Amiral Olry | 5,567 |  | fr |
| 2 Sep 1917 | U 28 | Georg Schmidt | | Olive Branch | 4,649 |  | br |
| 2 Sep 1917 | U 52 | Hans Walther | | Wentworth | 3,828 |  | br |
| 2 Sep 1917 | UB 49 | Hans von Mellenthin | | Caracas | 1,077 |  | nw |
| 2 Sep 1917 | UC 49 | Karl Petri | | Dundee | 2,187 |  | br |
| 2 Sep 1917 | UC 69 | Hugo Thielmann | | Ker Durand | 56 |  | fr |
| 2 Sep 1917 | UC 69 | Hugo Thielmann | | Rytonhall | 4,203 |  | br |
| 3 Sep 1917 | | | | Begonia | 1,250 |  | br |
| 3 Sep 1917 | U 75 | Fritz Schmolling | | Treverbyn | 4,163 |  | br |
| 3 Sep 1917 | U 95 | Athalwin Prinz | | Majoren | 2,747 |  | nw |
| 3 Sep 1917 | UB 30 | Wilhelm Rhein | | Ragnhild | 1,495 |  | br |
| 3 Sep 1917 | UC 50 | Rudolf Seuffer | | La Negra | 8,312 |  | br |
| 3 Sep 1917 | UC 74 | Wilhelm Marschall | | Agios Andreas | 68 |  | gr |
| 4 Sep 1917 | U 52 | Hans Walther | | Peerless | 3,112 |  | br |
| 4 Sep 1917 | UB 49 | Hans von Mellenthin | | Theodora | 2,899 |  | gr |
| 4 Sep 1917 | UC 16 | Georg Reimarus | | Bishopston | 2,513 |  | br |
| 4 Sep 1917 | UC 69 | Hugo Thielmann | | Sadi Carnot | 354 |  | fr |
| 5 Sep 1917 | | | | Margaret | 12 |  | br |
| 5 Sep 1917 | U 52 | Hans Walther | | Echunga | 6,285 |  | br |
| 5 Sep 1917 | U 52 | Hans Walther | | San Dunstano (d.) | 6,220 |  | br |
| 5 Sep 1917 | U 63 | Heinrich Metzger | | Proletaire | 101 |  | fr |
| 5 Sep 1917 | UB 10 | Fritz Gregor | | Jeannot | 50 |  | be |
| 5 Sep 1917 | UB 10 | Fritz Gregor | | Unity | 56 |  | br |
| 5 Sep 1917 | UC 4 | Erich Hecht | | Eros | 286 |  | br |
| 5 Sep 1917 | UC 42 | Hans Albrecht Müller | | Glynn | 78 |  | br |
| 5 Sep 1917 | UC 42 | Hans Albrecht Müller | | Industry | 91 |  | br |
| 5 Sep 1917 | UC 50 | Rudolf Seuffer | | Emma | 73 |  | br |
| 5 Sep 1917 | UC 50 | Rudolf Seuffer | | Florence Muspratt | 79 |  | br |
| 5 Sep 1917 | UC 50 | Rudolf Seuffer | | Frances | 89 |  | br |
| 5 Sep 1917 | UC 50 | Rudolf Seuffer | | Theodor | 230 |  | br |
| 5 Sep 1917 | UC 69 | Hugo Thielmann | | Alesia (d.) | 6,006 |  | fr |
| 6 Sep 1917 | U 80 | Gustav Amberger | | Tuskar | 1,159 |  | br |
| 6 Sep 1917 | UB 10 | Fritz Gregor | | Rosary | 37 |  | br |
| 6 Sep 1917 | UB 35 | Karl Stöter | | Thisbe | 1,091 |  | fr |
| 6 Sep 1917 | UB 49 | Hans von Mellenthin | | Moina | 168 |  | fr |
| 6 Sep 1917 | UB 62 | Bernhard Putzier | | Hammar Ii | 206 |  | sw |
| 6 Sep 1917 | UC 23 | Volkhard von Bothmer | | Helgian | 220 |  | br |
| 6 Sep 1917 | UC 50 | Rudolf Seuffer | | Alesia | 6,006 |  | fr |
| 6 Sep 1917 | UC 71 | Reinhold Saltzwedel | | Elisabethville | 7,017 |  | be |
| 6 Sep 1917 | UC 74 | Wilhelm Marschall | | Agios Georgios | 897 |  | gr |
| 6 Sep 1917 | UC 74 | Wilhelm Marschall | | Ville De Strasbourg | 2,167 |  | fr |
| 7 Sep 1917 | U 48 | Karl Edeling | | Minnehaha | 13,714 |  | br |
| 7 Sep 1917 | UB 34 | Hellmuth von Ruckteschell | | Grelfryda (d.) | 5,136 |  | br |
| 7 Sep 1917 | UB 35 | Karl Stöter | | Haakon Vii | 2,175 |  | nw |
| 7 Sep 1917 | UB 49 | Hans von Mellenthin | | Brodmead (d.) | 5,646 |  | br |
| 7 Sep 1917 | UB 49 | Hans von Mellenthin | | Casa Blanca | 31 |  | pt |
| 7 Sep 1917 | UB 49 | Hans von Mellenthin | | Clan Ferguson | 4,808 |  | br |
| 7 Sep 1917 | UB 49 | Hans von Mellenthin | | Hunsbridge | 3,424 |  | br |
| 7 Sep 1917 | UC 16 | Georg Reimarus | | Hinemoa | 2,283 |  | br |
| 7 Sep 1917 | UC 16 | Georg Reimarus | | Vestfjeld | 2,063 |  | nw |
| 7 Sep 1917 | UC 23 | Volkhard von Bothmer | | By George | 225 |  | br |
| 7 Sep 1917 | UC 50 | Rudolf Seuffer | | Versailles | 70 |  | fr |
| 7 Sep 1917 | UC 54 | Heinrich XXXVII Prinz Reuß zu Köstritz | | Myrmidon (d.) | 4,965 |  | br |
| 7 Sep 1917 | UC 71 | Reinhold Saltzwedel | | Kleber (d.) | 277 |  | fr |
| 7 Sep 1917 | UC 71 | Reinhold Saltzwedel | | Mont De Piete | 38 |  | fr |
| 7 Sep 1917 | UC 77 | Reinhard von Rabenau | | Scottish Prince (d.) | 2,897 |  | br |
| 8 Sep 1917 | UB 31 | Thomas Bieber | | Elizabeth | 49 |  | br |
| 8 Sep 1917 | UB 34 | Hellmuth von Ruckteschell | | Aladdin | 753 |  | nw |
| 8 Sep 1917 | UB 35 | Karl Stöter | | Armorique | 144 |  | fr |
| 8 Sep 1917 | UB 35 | Karl Stöter | | Blanche | 160 |  | fr |
| 8 Sep 1917 | UB 35 | Karl Stöter | | Meeta | 144 |  | ru |
| 8 Sep 1917 | UB 41 | Günther Krause | | Harrow | 1,777 |  | br |
| 8 Sep 1917 | UB 50 | Franz Becker | | William H. Clifford | 1,593 |  | am |
| 8 Sep 1917 | UC 17 | Ulrich Pilzecker | | Askelad | 2,823 |  | nw |
| 8 Sep 1917 | UC 31 | Kurt Siewert | | Newholm | 3,399 |  | br |
| 8 Sep 1917 | UC 40 | Hermann Menzel | | Family’s Pride | 39 |  | br |
| 8 Sep 1917 | UC 51 | Hans Galster | | Ezel | 163 |  | br |
| 8 Sep 1917 | UC 51 | Hans Galster | | Laura | 104 |  | br |
| 8 Sep 1917 | UC 71 | Reinhold Saltzwedel | | Setubal | 1,201 |  | nw |
| 9 Sep 1917 | U 48 | Karl Edeling | | Elsa | 1,236 |  | da |
| 9 Sep 1917 | UB 31 | Thomas Bieber | | Pluton | 1,449 |  | nw |
| 9 Sep 1917 | UC 17 | Ulrich Pilzecker | | Tuscarora (d.) | 7,106 |  | br |
| 9 Sep 1917 | UC 40 | Hermann Menzel | | Swiftsure | 823 |  | br |
| 9 Sep 1917 | UC 71 | Reinhold Saltzwedel | | Myosotis (d.) | 1,250 |  | br |
| 10 Sep 1917 | UC 14 | Helmut Lorenz | | Loch Ard | 225 |  | br |
| 10 Sep 1917 | UC 40 | Hermann Menzel | | Margarita (d.) | 2,788 |  | br |
| 10 Sep 1917 | UC 40 | Hermann Menzel | | Parkmill | 1,316 |  | br |
| 10 Sep 1917 | UC 51 | Hans Galster | | Jane Williamson | 197 |  | br |
| 10 Sep 1917 | UC 51 | Hans Galster | | Mary Orr | 91 |  | br |
| 10 Sep 1917 | UC 51 | Hans Galster | | Mary Seymour | 150 |  | br |
| 10 Sep 1917 | UC 51 | Hans Galster | | Moss Rose | 161 |  | br |
| 10 Sep 1917 | UC 51 | Hans Galster | | Water Lily | 111 |  | br |
| 10 Sep 1917 | UC 58 | Karl Vesper | | Sims | unknown |  | ru |
| 10 Sep 1917 | UC 71 | Reinhold Saltzwedel | | Vikholmen | 494 |  | nw |
| 10 Sep 1917 | UC 77 | Reinhard von Rabenau | | Ioanna (d.) | 3,459 |  | br |
| 11 Sep 1917 | U 49 | Richard Hartmann | | Vienna | 4,170 |  | br |
| 11 Sep 1917 | U 52 | Hans Walther | | Tobol | 3,741 |  | ru |
| 11 Sep 1917 | U 63 | Heinrich Metzger | | Embleton | 5,377 |  | br |
| 11 Sep 1917 | UC 31 | Kurt Siewert | | Cento (d.) | 3,708 |  | br |
| 11 Sep 1917 | UC 51 | Hans Galster | | Luxembourg | 1,417 |  | br |
| 11 Sep 1917 | UC 51 | Hans Galster | | Rosy Cross | 25 |  | br |
| 11 Sep 1917 | UC 51 | Hans Galster | | William | 78 |  | br |
| 12 Sep 1917 | U 103 | Claus Rücker | | St. Margaret | 943 |  | br |
| 12 Sep 1917 | U 19 | Johannes Spieß | | Agricola | 65 |  | br |
| 12 Sep 1917 | U 63 | Heinrich Metzger | | Reim | 1,126 |  | nw |
| 12 Sep 1917 | U 64 | Robert Moraht | | Gisla | 2,118 |  | nw |
| 12 Sep 1917 | U 64 | Robert Moraht | | Urd | 3,049 |  | br |
| 12 Sep 1917 | U 64 | Robert Moraht | | Wilmore | 5,395 |  | am |
| 12 Sep 1917 | UB 50 | Franz Becker | | HS 3 | 121 |  | br |
| 12 Sep 1917 | UB 50 | Franz Becker | | Rb 10 | 800 |  | br |
| 12 Sep 1917 | UC 27 | Gerhard Schulz | | Gibraltar | 3,803 |  | br |
| 12 Sep 1917 | UC 40 | Hermann Menzel | | Asia | 309 |  | br |
| 12 Sep 1917 | UC 40 | Hermann Menzel | | Glenelg (d.) | 4,160 |  | br |
| 13 Sep 1917 | UB 50 | Franz Becker | | Correiro De Sines | 32 |  | pt |
| 13 Sep 1917 | UB 50 | Franz Becker | | Gomizianes Da Graça Odemira | 32 |  | pt |
| 13 Sep 1917 | UC 34 | Horst Obermüller | | Bengali (d.) | 5,684 |  | br |
| 13 Sep 1917 | UC 52 | Ludwig Karl Sahl | | Arlequin | 6 |  | tu |
| 13 Sep 1917 | UC 52 | Ludwig Karl Sahl | | Chere Rose | 28 |  | tu |
| 13 Sep 1917 | UC 52 | Ludwig Karl Sahl | | Ortigia | 17 |  | tu |
| 13 Sep 1917 | UC 52 | Ludwig Karl Sahl | | Vittoria | 24 |  | tu |
| 14 Sep 1917 | U 64 | Robert Moraht | | Amiral De Kersaint | 5,570 |  | fr |
| 14 Sep 1917 | U 64 | Robert Moraht | | Ausonia | 1,438 |  | it |
| 14 Sep 1917 | U 64 | Robert Moraht | | Chulmleigh | 4,911 |  | br |
| 14 Sep 1917 | UB 50 | Franz Becker | | Sado | 196 |  | pt |
| 14 Sep 1917 | UC 51 | Hans Galster | | Zeta | 2,269 |  | br |
| 15 Sep 1917 | U 48 | Karl Edeling | | Rollesby | 3,955 |  | br |
| 15 Sep 1917 | U 63 | Heinrich Metzger | | Platuria | 3,445 |  | am |
| 15 Sep 1917 | U 67 | Hans Nieland | | Idomeneus (d.) | 6,692 |  | br |
| 15 Sep 1917 | UB 38 | Wilhelm Amberger | | Dependence | 120 |  | br |
| 15 Sep 1917 | UB 63 | Rudolf Gebeschus | | Santaren | 4,256 |  | br |
| 15 Sep 1917 | UC 51 | Hans Galster | | Saint Jacques | 2,459 |  | fr |
| 15 Sep 1917 | UC 53 | Kurt Albrecht | | Cavi (d.) | 2,544 |  | it |
| 15 Sep 1917 | UC 69 | Hugo Thielmann | | Sommeina | 3,317 |  | br |
| 16 Sep 1917 | U 54 | Kurt Heeseler | | Arabis | 3,928 |  | br |
| 16 Sep 1917 | UB 18 | Ulrich Meier | | Facto | 2,372 |  | nw |
| 16 Sep 1917 | UC 17 | Ulrich Pilzecker | | Thomas Krag (d.) | 4,569 |  | nw |
| 16 Sep 1917 | UC 21 | Werner von Zerboni di Sposetti | | Ann J. Trainer | 426 |  | am |
| 16 Sep 1917 | UC 27 | Gerhard Schulz | | Annina Capano | 250 |  | it |
| 16 Sep 1917 | UC 31 | Kurt Siewert | | Quatre Freres | 53 |  | fr |
| 16 Sep 1917 | UC 48 | Kurt Ramien | | Sandsend | 3,814 |  | br |
| 16 Sep 1917 | UC 64 | Erich Hecht | | Eendracht Vii | 251 |  | nl |
| 17 Sep 1917 | | | | Taxiarchis | 290 |  | gr |
| 17 Sep 1917 | U 54 | Kurt Heeseler | | Niemen | 1,888 |  | fr |
| 17 Sep 1917 | UB 62 | Bernhard Putzier | | Australia | 3,592 |  | ru |
| 17 Sep 1917 | UB 62 | Bernhard Putzier | | Queen Amelia | 4,278 |  | br |
| 17 Sep 1917 | UC 27 | Gerhard Schulz | | Eugenio D. | 99 |  | it |
| 17 Sep 1917 | UC 27 | Gerhard Schulz | | Muccio | 137 |  | it |
| 17 Sep 1917 | UC 48 | Kurt Ramien | | Our Bairns | 38 |  | br |
| 17 Sep 1917 | UC 48 | Kurt Ramien | | Ronald | 38 |  | br |
| 17 Sep 1917 | UC 64 | Erich Hecht | | Paraciers | 2,542 |  | fr |
| 18 Sep 1917 | | | | Domenico Primo | 80 |  | it |
| 18 Sep 1917 | U 106 | Hans Hufnagel | | City Of Lincoln (d.) | 5,867 |  | br |
| 18 Sep 1917 | U 106 | Hans Hufnagel | | Contest | 957 |  | br |
| 18 Sep 1917 | U 43 | Waldemar Bender | | Glenfoyle | 1,680 |  | br |
| 18 Sep 1917 | U 63 | Heinrich Metzger | | Arendal | 1,387 |  | br |
| 18 Sep 1917 | UB 50 | Franz Becker | | Polar Prince | 3,611 |  | br |
| 18 Sep 1917 | UB 62 | Bernhard Putzier | | Joseph Chamberlain | 3,709 |  | br |
| 18 Sep 1917 | UC 52 | Ludwig Karl Sahl | | Cachalot | 17 |  | tu |
| 18 Sep 1917 | UC 53 | Kurt Albrecht | | Domenico Primo (d.) | 80 |  | it |
| 19 Sep 1917 | U 151 | Waldemar Kophamel | | Blanche | 3,104 |  | fr |
| 19 Sep 1917 | U 54 | Kurt Heeseler | | Marthe Marguerite | 588 |  | fr |
| 19 Sep 1917 | U 82 | Hans Adam | | Saint Ronald | 4,387 |  | br |
| 19 Sep 1917 | U 94 | Alfred Saalwächter | | Hydra | 174 |  | da |
| 19 Sep 1917 | UC 48 | Kurt Ramien | | Etal Manor | 1,875 |  | br |
| 19 Sep 1917 | UC 53 | Kurt Albrecht | | Teresita | 136 |  | it |
| 20 Sep 1917 | | | | Marie Jeanne | 188 |  | fr |
| 20 Sep 1917 | U 32 | Kurt Hartwig | | Kurdistan | 3,720 |  | br |
| 20 Sep 1917 | UB 50 | Franz Becker | | Fabian | 2,246 |  | br |
| 20 Sep 1917 | UB 50 | Franz Becker | | Gioffredo Mameli | 4,124 |  | it |
| 21 Sep 1917 | UB 38 | Wilhelm Amberger | | Aline Montreuil | 1,624 |  | fr |
| 21 Sep 1917 | UB 40 | Hans Howaldt | | Radaas | 2,524 |  | da |
| 21 Sep 1917 | UC 23 | Volkhard von Bothmer | | Santo Nicola | 159 |  | it |
| 21 Sep 1917 | UC 23 | Volkhard von Bothmer | | Spiridon | 128 |  | gr |
| 21 Sep 1917 | UC 48 | Kurt Ramien | | Kouang-si (d.) | 6,472 |  | fr |
| 21 Sep 1917 | UC 53 | Kurt Albrecht | | Christina | 32 |  | it |
| 22 Sep 1917 | U 32 | Kurt Hartwig | | Caroline | 107 |  | fr |
| 22 Sep 1917 | U 60 | Karl Georg Schuster | | Mascotte | 199 |  | fr |
| 22 Sep 1917 | UB 40 | Hans Howaldt | | Greleen | 2,286 |  | br |
| 22 Sep 1917 | UB 50 | Franz Becker | | Alkyon | 2,464 |  | gr |
| 22 Sep 1917 | UB 50 | Franz Becker | | John Knudsen | 1,670 |  | nw |
| 22 Sep 1917 | UC 38 | Hans Hermann Wendlandt | | Garifaglia | 430 |  | gr |
| 22 Sep 1917 | UC 53 | Kurt Albrecht | | Primo | 65 |  | it |
| 22 Sep 1917 | UC 63 | Karsten von Heydebreck | | Italia | 627 |  | fr |
| 22 Sep 1917 | UC 64 | Erich Hecht | | Ville De Valenciennes | 1,734 |  | fr |
| 22 Sep 1917 | UC 71 | Ernst Steindorff | | Matti (d.) | 2,139 |  | nw |
| 22 Sep 1917 | UC 71 | Ernst Steindorff | | Trongate | 2,553 |  | br |
| 23 Sep 1917 | | | | Ekaterini | unknown |  | gr |
| 23 Sep 1917 | U 60 | Karl Georg Schuster | | Gloire | 51 |  | fr |
| 23 Sep 1917 | U 60 | Karl Georg Schuster | | Henry Lippitt | 595 |  | am |
| 23 Sep 1917 | U 60 | Karl Georg Schuster | | Jeune Mathilde | 58 |  | fr |
| 23 Sep 1917 | UB 40 | Hans Howaldt | | Rosehill | 2,788 |  | br |
| 23 Sep 1917 | UC 21 | Werner von Zerboni di Sposetti | | St. Dunstan | 730 |  | br |
| 23 Sep 1917 | UC 23 | Volkhard von Bothmer | | Nicolaos | 104 |  | gr |
| 23 Sep 1917 | UC 27 | Gerhard Schulz | | Joaquina | 69 |  | sp |
| 23 Sep 1917 | UC 27 | Gerhard Schulz | | Medie | 4,770 |  | fr |
| 23 Sep 1917 | UC 38 | Hans Hermann Wendlandt | | Agios Nicolaos | 119 |  | gr |
| 23 Sep 1917 | UC 47 | Paul Hundius | | Perseverance | 118 |  | br |
| 23 Sep 1917 | UC 53 | Kurt Albrecht | | Argietta | 165 |  | it |
| 23 Sep 1917 | UC 53 | Kurt Albrecht | | Giuseppina Concettina | 31 |  | it |
| 23 Sep 1917 | UC 53 | Kurt Albrecht | | Irthington | 2,845 |  | br |
| 23 Sep 1917 | UC 71 | Ernst Steindorff | | Hornsund | 3,646 |  | br |
| 24 Sep 1917 | U 32 | Kurt Hartwig | | Iriston | 3,221 |  | br |
| 24 Sep 1917 | U 54 | Kurt Heeseler | | Louis Bossert | 605 |  | nw |
| 24 Sep 1917 | U 94 | Alfred Saalwächter | | Petersham (d.) | 3,381 |  | br |
| 24 Sep 1917 | UC 11 | Karl Dobberstein | | Hastfen | 77 |  | br |
| 24 Sep 1917 | UC 47 | Paul Hundius | | Mimosa (d.) | 296 |  | fr |
| 24 Sep 1917 | UC 53 | Kurt Albrecht | | Nuova Francesca | 45 |  | it |
| 24 Sep 1917 | UC 53 | Kurt Albrecht | | S. Espedito | 31 |  | it |
| 24 Sep 1917 | UC 63 | Karsten von Heydebreck | | Europe | 2,839 |  | fr |
| 24 Sep 1917 | UC 63 | Karsten von Heydebreck | | Perseverance | 2,873 |  | fr |
| 24 Sep 1917 | UC 71 | Ernst Steindorff | | Leka | 1,845 |  | nw |
| 25 Sep 1917 | U 54 | Kurt Heeseler | | Marceau | 292 |  | fr |
| 25 Sep 1917 | U 60 | Karl Georg Schuster | | Edouard Detaille | 2,185 |  | fr |
| 25 Sep 1917 | U 90 | Walter Remy | | Union Republicaine | 44 |  | fr |
| 25 Sep 1917 | UB 40 | Hans Howaldt | | City Of Swansea | 1,375 |  | br |
| 25 Sep 1917 | UC 47 | Paul Hundius | | Boynton | 2,578 |  | br |
| 25 Sep 1917 | UC 63 | Karsten von Heydebreck | | Dinorah | 4,208 |  | fr |
| 25 Sep 1917 | UC 63 | Karsten von Heydebreck | | James Seckar | 255 |  | br |
| 25 Sep 1917 | UC 65 | Claus Lafrenz | | Paolina | 1,337 |  | am |
| 26 Sep 1917 | U 101 | Karl Koopmann | | Jacqueline | 2,899 |  | fr |
| 26 Sep 1917 | U 63 | Heinrich Metzger | | Heraklios | 2,878 |  | gr |
| 26 Sep 1917 | UB 30 | Wilhelm Rhein | | S. N. A. 3 | 1,709 |  | fr |
| 26 Sep 1917 | UB 50 | Franz Becker | | Ciro | 296 |  | it |
| 26 Sep 1917 | UC 33 | Alfred Arnold | | San Zeferino (d.) | 6,430 |  | br |
| 26 Sep 1917 | UC 50 | Rudolf Seuffer | | Ocean Star | 92 |  | br |
| 26 Sep 1917 | UC 69 | Hugo Thielmann | | Acorn | 112 |  | br |
| 26 Sep 1917 | UC 69 | Hugo Thielmann | | Port Victor (d.) | 7,280 |  | br |
| 27 Sep 1917 | | | | Advent | 895 |  | br |
| 27 Sep 1917 | U 39 | Walter Forstmann | | Swan River | 4,724 |  | br |
| 27 Sep 1917 | U 90 | Walter Remy | | Deux Jeannes | 50 |  | fr |
| 27 Sep 1917 | U 90 | Walter Remy | | Liberte | 49 |  | fr |
| 27 Sep 1917 | U 90 | Walter Remy | | Peuples Freres | 41 |  | fr |
| 27 Sep 1917 | UB 34 | Hellmuth von Ruckteschell | | Greltoria | 5,143 |  | br |
| 27 Sep 1917 | UB 35 | Karl Stöter | | Colbert (d.) | 385 |  | fr |
| 28 Sep 1917 | UC 75 | Johannes Lohs | | William Middleton (d.) | 2,543 |  | br |
| 29 Sep 1917 | U 32 | Kurt Hartwig | | Sanwen | 3,689 |  | br |
| 29 Sep 1917 | U 60 | Karl Georg Schuster | | Bon Premier | 1,352 |  | fr |
| 29 Sep 1917 | U 60 | Karl Georg Schuster | | Eugenie Fautrel | 2,212 |  | fr |
| 29 Sep 1917 | U 60 | Karl Georg Schuster | | Percy B. | 330 |  | br |
| 29 Sep 1917 | U 61 | Victor Dieckmann | | Elmsgarth | 3,503 |  | br |
| 29 Sep 1917 | U 73 | Ernst von Voigt | | R 235 | 15 |  | fr |
| 29 Sep 1917 | UB 34 | Hellmuth von Ruckteschell | | Bertha (p.) | 185 |  | nl |
| 29 Sep 1917 | UB 35 | Karl Stöter | | Kildonan | 2,118 |  | br |
| 30 Sep 1917 | | | | Bezets | 267 |  | ru |
| 30 Sep 1917 | U 73 | Ernst von Voigt | | Midlothian | 1,321 |  | br |
| 30 Sep 1917 | U 73 | Ernst von Voigt | | Nicolosa | 50 |  | gr |
| 30 Sep 1917 | U 90 | Walter Remy | | Drake | 2,267 |  | br |
| 30 Sep 1917 | U 90 | Walter Remy | | Heron | 885 |  | br |
| 30 Sep 1917 | UB 51 | Ernst Krafft | | Amiral Troude | 1,876 |  | fr |
| 30 Sep 1917 | UC 74 | Wilhelm Marschall | | Charlsin | 241 |  | br |
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| 459,307 | | | 218 ships sunk (351,327 tons) and 27 ships damaged (107,980 tons). Legend (d.) means the ship was damaged. (p.) means the ship was taken as prize (included in ships & tonnage lost).
We have a picture of this vessel.
|
This map shows where Allied ships were hit during September 1917.

In some cases the exact positions of losses are not known, those are not shown.