February 1917
This is the full listing of all ships hit during February 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 Feb 1917 | U 55 | Wilhelm Werner | | Ada | 24 |  | br |
| 1 Feb 1917 | U 55 | Wilhelm Werner | | Essonite | 589 | | br |
| 1 Feb 1917 | U 55 | Wilhelm Werner | | Inverlyon | 59 | | br |
| 1 Feb 1917 | U 67 | Hans Nieland | | Butron | 2,434 |  | sp |
| 1 Feb 1917 | UB 18 | Claus Lafrenz | | Wellhome (d.) | 113 | | br |
| 1 Feb 1917 | UC 21 | Reinhold Saltzwedel | | Sainte Helene | 2,128 |  | fr |
| 1 Feb 1917 | UC 32 | Herbert Breyer | | Jerv | 1,112 |  | nw |
| 1 Feb 1917 | UC 46 | Friedrich Moecke | | Gamma | 2,115 |  | nl |
| 1 Feb 1917 | UC 47 | Paul Hundius | | Portia | 1,127 | | nw |
| 2 Feb 1917 | U 45 | Erich Sittenfeld | | Garnet Hill | 2,272 |  | ru |
| 2 Feb 1917 | U 53 | Hans Rose | | Odin | 1,045 | | nw |
| 2 Feb 1917 | U 55 | Wilhelm Werner | | Pomoschnick | 167 | | ru |
| 2 Feb 1917 | U 67 | Hans Nieland | | Elikon | 1,166 |  | gr |
| 2 Feb 1917 | U 81 | Raimund Weisbach | | Songdal | 2,090 | | nw |
| 2 Feb 1917 | UB 23 | Heinz Ziemer | | Gabrielle | 1,410 | | fr |
| 2 Feb 1917 | UC 11 | Benno von Ditfurth | | Holdene | 274 | | br |
| 2 Feb 1917 | UC 46 | Friedrich Moecke | | Isle Of Arran | 1,918 | | br |
| 3 Feb 1917 | U 43 | Hellmuth Jürst | | Hollinside | 2,862 | | br |
| 3 Feb 1917 | U 43 | Hellmuth Jürst | | Songelv | 2,064 | | nw |
| 3 Feb 1917 | U 43 | Hellmuth Jürst |  | Wasdale | 1,856 | | nw |
| 3 Feb 1917 | U 45 | Erich Sittenfeld | | Belford | 1,905 | | br |
| 3 Feb 1917 | U 45 | Erich Sittenfeld | | Eavestone | 1,858 | | br |
| 3 Feb 1917 | U 53 | Hans Rose | | Housatonic | 3,143 |  | am |
| 3 Feb 1917 | U 54 | Volkhard von Bothmer | | Tamara | 453 | | nw |
| 3 Feb 1917 | U 81 | Raimund Weisbach | | Port Adelaide | 8,181 | | br |
| 3 Feb 1917 | UB 18 | Claus Lafrenz | | Confiante | 85 | | fr |
| 3 Feb 1917 | UB 18 | Claus Lafrenz | | Goeland | 305 | | fr |
| 3 Feb 1917 | UB 18 | Claus Lafrenz | | Lars Kruse | 1,460 |  | da |
| 3 Feb 1917 | UB 18 | Claus Lafrenz | | Sainte Marie | 60 | | fr |
| 4 Feb 1917 | U 43 | Hellmuth Jürst | | Turino | 4,241 | | br |
| 4 Feb 1917 | U 45 | Erich Sittenfeld | | Eridania | 3,171 |  | it |
| 4 Feb 1917 | U 45 | Erich Sittenfeld | | Thor Ii | 2,144 | | nw |
| 4 Feb 1917 | U 53 | Hans Rose | | Aimee Maria | 327 | | fr |
| 4 Feb 1917 | U 53 | Hans Rose | | Bangpuhtis | 259 | | ru |
| 4 Feb 1917 | U 54 | Volkhard von Bothmer | | Floridian | 4,777 | | br |
| 4 Feb 1917 | U 54 | Volkhard von Bothmer | | Palmleaf | 5,489 | | br |
| 4 Feb 1917 | U 60 | Karl Georg Schuster | | Ghazee | 5,084 | | br |
| 4 Feb 1917 | U 81 | Raimund Weisbach | | Maria | 992 | | it |
| 4 Feb 1917 | U 83 | Bruno Hoppe | | Anna Maria | 141 | | fr |
| 4 Feb 1917 | U 83 | Bruno Hoppe | | Coquette | 167 | | fr |
| 4 Feb 1917 | UB 18 | Claus Lafrenz | | Cerera | 3,512 | | ru |
| 4 Feb 1917 | UB 39 | Heinrich Küstner | | Dauntless | 2,157 | | br |
| 4 Feb 1917 | UC 24 | Kurt Willich | | Solbakken | 2,616 | | nw |
| 4 Feb 1917 | UC 46 | Friedrich Moecke | | Marthe | 154 | | fr |
| 5 Feb 1917 | | | | Frithjof | unknown | | nw |
| 5 Feb 1917 | U 53 | Hans Rose | | Bravalla | 1,519 |  | sw |
| 5 Feb 1917 | U 54 | Volkhard von Bothmer | | Ainsdale (d.) | 1,825 | | br |
| 5 Feb 1917 | U 54 | Volkhard von Bothmer | | Azul | 3,074 | | br |
| 5 Feb 1917 | U 60 | Karl Georg Schuster | | Lux | 2,621 | | br |
| 5 Feb 1917 | U 60 | Karl Georg Schuster | | Warley Pickering | 4,196 | | br |
| 5 Feb 1917 | U 67 | Hans Nieland | | Lorton | 1,419 |  | pe |
| 5 Feb 1917 | U 81 | Raimund Weisbach | | Wartenfels | 4,511 | | br |
| 5 Feb 1917 | UB 22 | Bernhard Putzier | | Resolute | 125 | | br |
| 5 Feb 1917 | UB 34 | Theodor Schultz | | Hurstwood | 1,229 | | br |
| 5 Feb 1917 | UB 35 | Rudolf Gebeschus | | Vestra | 1,021 | | br |
| 5 Feb 1917 | UB 39 | Heinrich Küstner | | Yvonne | 123 | | fr |
| 5 Feb 1917 | UB 40 | Hans Howaldt | | Anna Prosper | 70 |  | be |
| 5 Feb 1917 | UB 40 | Hans Howaldt | | Emerald | 57 | | br |
| 5 Feb 1917 | UC 29 | Ernst Rosenow | | Primrose | 136 | | br |
| 5 Feb 1917 | UC 46 | Friedrich Moecke | | Argyllshire (d.) | 12,097 | | br |
| 6 Feb 1917 | | | | Rossi | unknown | | br |
| 6 Feb 1917 | U 55 | Wilhelm Werner | | Saxon Briton | 1,337 | | br |
| 6 Feb 1917 | U 83 | Bruno Hoppe | | Crown Point | 5,218 | | br |
| 6 Feb 1917 | U 85 | Willy Petz | | Cliftonian | 4,303 | | br |
| 6 Feb 1917 | U 85 | Willy Petz | | Explorer (d.) | 7,608 | | br |
| 6 Feb 1917 | UB 22 | Bernhard Putzier | | Adelaide | 133 | | br |
| 6 Feb 1917 | UB 22 | Bernhard Putzier | | Romeo | 114 | | br |
| 6 Feb 1917 | UB 22 | Bernhard Putzier | | Rupert | 114 | | br |
| 6 Feb 1917 | UB 34 | Theodor Schultz | | Ferruccio | 2,192 | | it |
| 6 Feb 1917 | UC 24 | Kurt Willich | | Ellavore | 2,733 | | nw |
| 6 Feb 1917 | UC 24 | Kurt Willich | | Havgard | 1,279 | | nw |
| 6 Feb 1917 | UC 26 | Matthias Graf von Schmettow | | Mona’s Queen (d.) | 1,200 | | br |
| 6 Feb 1917 | UC 46 | Friedrich Moecke | | Longset | 275 | | br |
| 7 Feb 1917 | U 38 | Max Valentiner | | Aphrodite | 130 | | fr |
| 7 Feb 1917 | U 54 | Volkhard von Bothmer | | Saxonian | 4,855 | | br |
| 7 Feb 1917 | U 54 | Volkhard von Bothmer | | Wallace (d.) | 3,930 | | br |
| 7 Feb 1917 | U 55 | Wilhelm Werner | | Yola | 3,504 | | br |
| 7 Feb 1917 | U 60 | Karl Georg Schuster | | Storskog | 2,191 | | nw |
| 7 Feb 1917 | U 78 | Otto Dröscher | | Väring | 2,107 | | sw |
| 7 Feb 1917 | U 81 | Raimund Weisbach | | Gravina | 1,242 | | br |
| 7 Feb 1917 | U 83 | Bruno Hoppe | | Diaz | 637 | | ru |
| 7 Feb 1917 | U 85 | Willy Petz | | California | 8,669 | | br |
| 7 Feb 1917 | U 85 | Willy Petz | | Vedamore | 6,330 | | br |
| 7 Feb 1917 | UB 22 | Bernhard Putzier | | Boyne Castle | 245 | | br |
| 7 Feb 1917 | UB 22 | Bernhard Putzier | | Shakespeare | 210 | | br |
| 7 Feb 1917 | UB 34 | Theodor Schultz | | Corsican Prince | 2,776 | | br |
| 7 Feb 1917 | UB 34 | Theodor Schultz | | Saint Ninian | 3,026 | | br |
| 7 Feb 1917 | UC 26 | Matthias Graf von Schmettow | | Noella | 277 | | fr |
| 7 Feb 1917 | UC 39 | Otto Ehrentraut | | Hans Kinck | 2,667 | | nw |
| 8 Feb 1917 | U 81 | Raimund Weisbach | | Mantola | 8,253 | | br |
| 8 Feb 1917 | UC 33 | Martin Schelle | | Derika | 153 | | nl |
| 8 Feb 1917 | UC 39 | Otto Ehrentraut | | Hanna Larsen | 1,311 | | br |
| 8 Feb 1917 | UC 39 | Otto Ehrentraut | | Ida | 1,172 | | nw |
| 8 Feb 1917 | UC 47 | Paul Hundius | | Ghurka | 880 | | br |
| 8 Feb 1917 | UC 47 | Paul Hundius | | Lullington | 2,816 | | br |
| 8 Feb 1917 | UC 65 | Otto Steinbrinck | | Guillaume Tell | 148 | | fr |
| 8 Feb 1917 | UC 65 | Otto Steinbrinck | | Mary Ann | 17 | | br |
| 9 Feb 1917 | U 43 | Hellmuth Jürst | | Famiglia | 2,942 | | it |
| 9 Feb 1917 | U 53 | Hans Rose | | Marian | 71 | | nl |
| 9 Feb 1917 | UB 22 | Bernhard Putzier | | Benbow | 172 | | br |
| 9 Feb 1917 | UB 22 | Bernhard Putzier | | Duke Of York | 150 | | br |
| 9 Feb 1917 | UC 29 | Ernst Rosenow | | Yesso | 229 | | br |
| 10 Feb 1917 | U 45 | Erich Sittenfeld | | Ostrich | 148 | | br |
| 10 Feb 1917 | U 81 | Raimund Weisbach | | Netherlee | 4,227 | | br |
| 10 Feb 1917 | U 83 | Bruno Hoppe | | Paquerette | 164 | | fr |
| 10 Feb 1917 | UB 22 | Bernhard Putzier | | Athenian | 171 | | br |
| 10 Feb 1917 | UB 22 | Bernhard Putzier | | Bellax | 1,107 | | nw |
| 10 Feb 1917 | UB 22 | Bernhard Putzier | | Ireland | 152 | | br |
| 10 Feb 1917 | UB 39 | Heinrich Küstner | | Rancagua | 2,729 | | fr |
| 10 Feb 1917 | UC 21 | Reinhold Saltzwedel | | Beechtree | 1,277 | | br |
| 10 Feb 1917 | UC 29 | Ernst Rosenow | | San Fraterno (d.) | 9,587 | | br |
| 10 Feb 1917 | UC 47 | Paul Hundius | | Japanese Prince | 4,876 | | br |
| 10 Feb 1917 | UC 65 | Otto Steinbrinck | | Sallagh | 325 | | br |
| 11 Feb 1917 | U 35 | Lothar von Arnauld de la Perière | | Assunta | 132 | | it |
| 11 Feb 1917 | UB 38 | Wilhelm Amberger | | Dalmata | 1,773 | | nw |
| 11 Feb 1917 | UC 21 | Reinhold Saltzwedel | | Dernes | 738 | | nw |
| 11 Feb 1917 | UC 29 | Ernst Rosenow | | Norwood | 798 | | br |
| 11 Feb 1917 | UC 29 | Ernst Rosenow | | Roanoke (d.) | 3,455 | | br |
| 11 Feb 1917 | UC 44 | Kurt Tebbenjohanns | | Ashwold | 129 | | br |
| 11 Feb 1917 | UC 65 | Otto Steinbrinck | | Lycia | 2,715 | | br |
| 11 Feb 1917 | UC 65 | Otto Steinbrinck | | Olivia | 242 | | br |
| 11 Feb 1917 | UC 65 | Otto Steinbrinck | | Voltaire | 409 | | br |
| 11 Feb 1917 | UC 66 | Herbert Pustkuchen | | Ada | 187 | | br |
| 11 Feb 1917 | UC 66 | Herbert Pustkuchen | | Vasilissa Olga | 1,400 | | gr |
| 11 Feb 1917 | UC 66 | Herbert Pustkuchen | | Woodfield (d.) | 4,300 | | br |
| 12 Feb 1917 | U 35 | Lothar von Arnauld de la Perière | | Lyman M. Law | 1,300 | | am |
| 12 Feb 1917 | U 81 | Raimund Weisbach | | Hugo Hamilton | 2,577 | | sw |
| 12 Feb 1917 | UC 11 | Benno von Ditfurth | | Foreland | 1,960 | | br |
| 12 Feb 1917 | UC 21 | Reinhold Saltzwedel | | Nordcap | 332 | | nw |
| 12 Feb 1917 | UC 30 | Heinrich Stenzler | | Euston | 209 | | br |
| 12 Feb 1917 | UC 36 | Gustav Buch | | West | 378 | | nw |
| 12 Feb 1917 | UC 44 | Kurt Tebbenjohanns | | Adolf | 835 | | sw |
| 12 Feb 1917 | UC 44 | Kurt Tebbenjohanns | | Dale | 198 | | br |
| 12 Feb 1917 | UC 47 | Paul Hundius | | Aghios Spyridon | 1,618 | | gr |
| 12 Feb 1917 | UC 47 | Paul Hundius | | Brissons | 60 | | br |
| 12 Feb 1917 | UC 65 | Otto Steinbrinck | | Pinna (d.) | 6,288 | | br |
| 12 Feb 1917 | UC 66 | Herbert Pustkuchen | | Afric | 11,999 | | br |
| 12 Feb 1917 | UC 66 | Herbert Pustkuchen | | Lucent | 1,409 | | br |
| 13 Feb 1917 | U 35 | Lothar von Arnauld de la Perière | | Percy Roy | 110 | | br |
| 13 Feb 1917 | U 78 | Otto Dröscher | | Barnsley | 144 | | br |
| 13 Feb 1917 | UC 21 | Reinhold Saltzwedel | | Progreso | 1,620 | | nw |
| 13 Feb 1917 | UC 4 | Georg Reimarus | | Sisters Melville | 260 | | br |
| 13 Feb 1917 | UC 44 | Kurt Tebbenjohanns | | King Alfred | 159 | | br |
| 13 Feb 1917 | UC 47 | Paul Hundius | | F. D. Lambert | 2,195 | | br |
| 13 Feb 1917 | UC 47 | Paul Hundius | | Fleurette | 60 | | br |
| 13 Feb 1917 | UC 47 | Paul Hundius | | Sequoya (d.) | 5,263 | | br |
| 13 Feb 1917 | UC 65 | Otto Steinbrinck | | Friendship | 37 | | br |
| 13 Feb 1917 | UC 65 | Otto Steinbrinck | | Zircon | 48 | | br |
| 14 Feb 1917 | U 35 | Lothar von Arnauld de la Perière | | Mery | 178 | | ru |
| 14 Feb 1917 | U 35 | Lothar von Arnauld de la Perière | | Oceania | 4,217 | | it |
| 14 Feb 1917 | U 38 | Max Valentiner | | Michele | 41 | | it |
| 14 Feb 1917 | U 38 | Max Valentiner | | Trowbridge (d.) | 3,712 | | br |
| 14 Feb 1917 | U 39 | Walter Forstmann | | Torino | 4,159 | | it |
| 14 Feb 1917 | U 60 | Karl Georg Schuster | | Hopemoor | 3,740 | | br |
| 14 Feb 1917 | UC 11 | Benno von Ditfurth | | Marie Leonhardt | 1,466 | | br |
| 14 Feb 1917 | UC 21 | Reinhold Saltzwedel | | Longscar | 2,777 | | br |
| 14 Feb 1917 | UC 21 | Reinhold Saltzwedel | | Mar Adriatico | 2,410 | | sp |
| 14 Feb 1917 | UC 33 | Martin Schelle | | Eudora | 1,991 | | br |
| 14 Feb 1917 | UC 44 | Kurt Tebbenjohanns | | Belvoir Castle | 221 | | br |
| 14 Feb 1917 | UC 44 | Kurt Tebbenjohanns | | Mary Bell | 144 | | br |
| 14 Feb 1917 | UC 65 | Otto Steinbrinck | | Ferga | 791 | | br |
| 14 Feb 1917 | UC 65 | Otto Steinbrinck | | Greenland | 1,753 | | br |
| 14 Feb 1917 | UC 65 | Otto Steinbrinck | | Inishowen Head | 3,050 | | br |
| 14 Feb 1917 | UC 65 | Otto Steinbrinck | | Margarita | 375 | | br |
| 14 Feb 1917 | UC 70 | Werner Fürbringer | | Marthe Yvonne | 30 | | fr |
| 15 Feb 1917 | U 35 | Lothar von Arnauld de la Perière | | Buranda (d.) | 3,651 | | br |
| 15 Feb 1917 | U 39 | Walter Forstmann | | Minas | 2,854 | | it |
| 15 Feb 1917 | U 78 | Otto Dröscher | | Stralsund | 510 | | nw |
| 15 Feb 1917 | U 80 | Alfred von Glasenapp | | Celtic (d.) | 20,904 | | br |
| 15 Feb 1917 | UC 16 | Egon von Werner | | Leven | 775 | | br |
| 15 Feb 1917 | UC 21 | Reinhold Saltzwedel | | Aline | 30 | | fr |
| 15 Feb 1917 | UC 21 | Reinhold Saltzwedel | | Marion Dawson | 2,300 | | br |
| 15 Feb 1917 | UC 65 | Otto Steinbrinck | | Afton | 1,156 | | br |
| 15 Feb 1917 | UC 65 | Otto Steinbrinck | | Kyanite | 564 | | br |
| 15 Feb 1917 | UC 66 | Herbert Pustkuchen | | Alma Jeanne | 33 | | fr |
| 15 Feb 1917 | UC 66 | Herbert Pustkuchen | | Argos | 26 | | fr |
| 15 Feb 1917 | UC 66 | Herbert Pustkuchen | | Desire Louise | 31 | | fr |
| 16 Feb 1917 | U 21 | Otto Hersing | | Mayola | 146 | | br |
| 16 Feb 1917 | U 21 | Otto Hersing | | Rose Dorothea | 147 | | br |
| 16 Feb 1917 | U 35 | Lothar von Arnauld de la Perière | | Oriana | 3,132 | | it |
| 16 Feb 1917 | U 35 | Lothar von Arnauld de la Perière | | Prudenza | 3,307 | | it |
| 16 Feb 1917 | UB 21 | Franz Walther | | Lady Ann | 1,016 | | br |
| 16 Feb 1917 | UC 17 | Ralph Wenninger | | Hermine | 3,940 | | fr |
| 16 Feb 1917 | UC 21 | Reinhold Saltzwedel | | Niobe | 1,319 | | fr |
| 16 Feb 1917 | UC 21 | Reinhold Saltzwedel | | Pollcrea (d.) | 1,209 | | br |
| 16 Feb 1917 | UC 30 | Heinrich Stenzler | | Recepto | 245 | | br |
| 16 Feb 1917 | UC 38 | Alfred Klatt | | Laertis | 3,914 | | gr |
| 16 Feb 1917 | UC 65 | Otto Steinbrinck | | Queenswood | 2,710 | | br |
| 16 Feb 1917 | UC 65 | Otto Steinbrinck | | Ville De Bayonne | 1,301 | | fr |
| 17 Feb 1917 | U 21 | Otto Hersing | | Emilia I° | 25 |  | pt |
| 17 Feb 1917 | U 21 | Otto Hersing | | Lima | 108 | | pt |
| 17 Feb 1917 | U 35 | Lothar von Arnauld de la Perière | | Pier Accavan Ubert | 112 | | it |
| 17 Feb 1917 | U 39 | Walter Forstmann | | Ala | 359 | | it |
| 17 Feb 1917 | U 60 | Karl Georg Schuster | | Dalbeattie | 1,327 | | nw |
| 17 Feb 1917 | U 60 | Karl Georg Schuster | | Iolo | 3,840 | | br |
| 17 Feb 1917 | U 64 | Robert Moraht | | Hawk | 243 | | br |
| 17 Feb 1917 | U 64 | Robert Moraht | | Okement | 4,349 | | br |
| 17 Feb 1917 | U 65 | Hermann von Fischel | | Athos | 12,644 | | fr |
| 17 Feb 1917 | U 83 | Bruno Hoppe | | Farnborough (d.) | 3,207 | | br |
| 17 Feb 1917 | U 84 | Walter Roehr | | Bayonne | 2,589 | | fr |
| 17 Feb 1917 | U 84 | Walter Roehr | | Romsdalen | 2,548 | | br |
| 17 Feb 1917 | UB 21 | Franz Walther | | Excel | 157 | | br |
| 17 Feb 1917 | UC 21 | Reinhold Saltzwedel | | Cabo | 1,254 | | nw |
| 17 Feb 1917 | UC 21 | Reinhold Saltzwedel | | Silene | 171 | | fr |
| 17 Feb 1917 | UC 66 | Herbert Pustkuchen | | Driebergen | 1,884 | | nl |
| 17 Feb 1917 | UC 66 | Herbert Pustkuchen | | Ootmarsum | 2,313 | | nl |
| 17 Feb 1917 | UC 66 | Herbert Pustkuchen | | Trompenberg | 1,608 | | nl |
| 18 Feb 1917 | U 35 | Lothar von Arnauld de la Perière | | Giuseppe | 1,856 | | it |
| 18 Feb 1917 | U 35 | Lothar von Arnauld de la Perière | | Guido T | 324 | | it |
| 18 Feb 1917 | U 35 | Lothar von Arnauld de la Perière | | Skogland | 3,264 | | sw |
| 18 Feb 1917 | U 50 | Gerhard Berger | | Jean Pierre | 449 | | fr |
| 18 Feb 1917 | U 64 | Robert Moraht | | Asturian (d.) | 3,193 | | br |
| 18 Feb 1917 | U 84 | Walter Roehr | | Berrima (d.) | 11,137 | | br |
| 18 Feb 1917 | U 84 | Walter Roehr | | Hunsworth (d.) | 2,991 | | br |
| 18 Feb 1917 | U 84 | Walter Roehr | | Juno | 2,416 | | nw |
| 18 Feb 1917 | U 84 | Walter Roehr | | Valdes | 2,233 | | br |
| 18 Feb 1917 | UC 17 | Ralph Wenninger | | Thorgny | 734 | | nw |
| 18 Feb 1917 | UC 18 | Wilhelm Kiel | | Netherton | 199 | | br |
| 18 Feb 1917 | UC 21 | Reinhold Saltzwedel | | Triumph | 52 | | br |
| 18 Feb 1917 | UC 33 | Martin Schelle | | Clifton | 242 | | br |
| 19 Feb 1917 | U 49 | Richard Hartmann | | Sigrid | 2,194 | | ru |
| 19 Feb 1917 | U 64 | Robert Moraht | | Corso | 3,242 | | br |
| 19 Feb 1917 | U 67 | Hans Nieland | | Headley | 4,953 | | br |
| 19 Feb 1917 | U 71 | Hugo Schmidt | | Halcyon | 190 | | br |
| 19 Feb 1917 | UC 17 | Ralph Wenninger | | Centurion | 1,828 | | br |
| 19 Feb 1917 | UC 17 | Ralph Wenninger | | Picton Castle | 245 | | br |
| 19 Feb 1917 | UC 18 | Wilhelm Kiel | | Lady Olive | 701 | | br |
| 19 Feb 1917 | UC 21 | Reinhold Saltzwedel | | Rutenfjell | 1,844 | | nw |
| 19 Feb 1917 | UC 38 | Alfred Klatt | | Quinto | 1,796 | | it |
| 19 Feb 1917 | UC 65 | Otto Steinbrinck | | Alice | 18 | | fr |
| 19 Feb 1917 | UC 65 | Otto Steinbrinck | | Brigade | 425 | | br |
| 19 Feb 1917 | UC 65 | Otto Steinbrinck | | Justine Marie | 16 | | be |
| 19 Feb 1917 | UC 65 | Otto Steinbrinck | | Saint Louis De Gonzague | 53 | | fr |
| 19 Feb 1917 | UC 65 | Otto Steinbrinck | | Skrim | 727 | | nw |
| 19 Feb 1917 | UC 65 | Otto Steinbrinck | | Violette | 36 | | fr |
| 20 Feb 1917 | U 21 | Otto Hersing | | Cacique | 2,917 | | fr |
| 20 Feb 1917 | U 39 | Walter Forstmann | | Rosalie | 4,237 | | br |
| 20 Feb 1917 | UC 17 | Ralph Wenninger | | Falls Of Afton | 1,965 | | nw |
| 20 Feb 1917 | UC 38 | Alfred Klatt | | Doravore | 2,760 | | nw |
| 21 Feb 1917 | | | | Re Umberto | 80 | | it |
| 21 Feb 1917 | U 39 | Walter Forstmann | | Wathfield | 3,012 | | br |
| 21 Feb 1917 | U 60 | Karl Georg Schuster | | Tecwyn | 132 | | br |
| 21 Feb 1917 | U 84 | Walter Roehr | | Dukat | 1,408 | | nw |
| 21 Feb 1917 | UB 40 | Hans Howaldt | | Alice | 709 | | nw |
| 21 Feb 1917 | UC 17 | Ralph Wenninger | | Manningham | 1,988 | | sw |
| 21 Feb 1917 | UC 23 | Johannes Kirchner | | Princess Alberta | 1,586 | | br |
| 21 Feb 1917 | UC 66 | Herbert Pustkuchen | | Energy | 25 | | br |
| 21 Feb 1917 | UC 66 | Herbert Pustkuchen | | K.L.M. | 28 | | br |
| 21 Feb 1917 | UC 66 | Herbert Pustkuchen | | Monarch | 35 | | br |
| 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 | | Menado (d.) | 5,874 | | 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 39 | Walter Forstmann | | Ville De Bougie | 508 | | fr |
| 22 Feb 1917 | U 50 | Gerhard Berger | | Blenheim | 1,144 | | nw |
| 22 Feb 1917 | U 84 | Walter Roehr | | Invercauld | 1,416 | | br |
| 22 Feb 1917 | UB 21 | Franz Walther | | John Miles | 687 | | br |
| 22 Feb 1917 | UC 17 | Ralph Wenninger | | Ajax | 1,468 | | nw |
| 22 Feb 1917 | UC 17 | Ralph Wenninger | | Saint Sauveur | 158 | | fr |
| 22 Feb 1917 | UC 35 | Ernst von Voigt | | Nostra Signora Del Porto Salvo | 136 | | br |
| 22 Feb 1917 | UC 38 | Alfred Klatt | | Adelina | 528 | | it |
| 22 Feb 1917 | UC 38 | Alfred Klatt | | Ape | 301 | | it |
| 22 Feb 1917 | UC 38 | Alfred Klatt | | Giovanni P. | 105 | | it |
| 22 Feb 1917 | UC 38 | Alfred Klatt | | Michielino | 20 | | it |
| 22 Feb 1917 | UC 38 | Alfred Klatt | | San Michele | 583 | | it |
| 22 Feb 1917 | UC 38 | Alfred Klatt | | Vincenzino | 20 | | it |
| 22 Feb 1917 | UC 42 | Otto Heinrich Tornow | | Frolic | 183 | | br |
| 22 Feb 1917 | UC 42 | Otto Heinrich Tornow | | Lord Collingwood | 148 | | br |
| 22 Feb 1917 | UC 6 | Werner von Zerboni di Sposetti | | Ashtabula (d.) | 7,025 | | br |
| 22 Feb 1917 | UC 66 | Herbert Pustkuchen | | Ambon (d.) | 3,598 | | nl |
| 23 Feb 1917 | U 35 | Lothar von Arnauld de la Perière | | Longhirst | 3,053 | | br |
| 23 Feb 1917 | U 35 | Lothar von Arnauld de la Perière | | Mont Viso (d.) | 4,820 | | fr |
| 23 Feb 1917 | U 39 | Walter Forstmann | | Trojan Prince | 3,196 | | br |
| 23 Feb 1917 | UC 17 | Ralph Wenninger | | Belgier | 4,588 | | br |
| 23 Feb 1917 | UC 17 | Ralph Wenninger | | Iser | 2,160 | | br |
| 23 Feb 1917 | UC 17 | Ralph Wenninger | | Nyland | 1,824 | | nw |
| 23 Feb 1917 | UC 4 | Georg Reimarus | | Grenadier | 1,004 | | br |
| 24 Feb 1917 | U 35 | Lothar von Arnauld de la Perière | | Dorothy | 3,806 | | br |
| 24 Feb 1917 | U 35 | Lothar von Arnauld de la Perière | | Prikonisos | 3,537 | | gr |
| 24 Feb 1917 | U 50 | Gerhard Berger | | Falcon | 2,244 | | br |
| 24 Feb 1917 | U 65 | Hermann von Fischel | | Venere | 290 | | it |
| 24 Feb 1917 | UB 43 | Hans von Mellenthin | | Miaoulis | 2,918 | | gr |
| 24 Feb 1917 | UC 17 | Ralph Wenninger | | Salamis | 995 | | gr |
| 24 Feb 1917 | UC 31 | Otto von Schrader | | Beneficent | 1,963 | | br |
| 24 Feb 1917 | UC 33 | Martin Schelle | | Verona | 437 | | br |
| 24 Feb 1917 | UC 38 | Alfred Klatt | | Albina | 187 | | it |
| 25 Feb 1917 | U 50 | Gerhard Berger | | Aries | 3,071 | | br |
| 25 Feb 1917 | U 50 | Gerhard Berger | | Huntsman | 7,460 | | br |
| 25 Feb 1917 | U 50 | Gerhard Berger | | Laconia | 18,099 | | br |
| 25 Feb 1917 | UB 40 | Hans Howaldt | | Maria Adriana | 88 | | nl |
| 25 Feb 1917 | UC 17 | Ralph Wenninger | | Kleber | 95 | | fr |
| 25 Feb 1917 | UC 65 | Otto Steinbrinck | | Saint Joseph | 42 | | fr |
| 25 Feb 1917 | UC 65 | Otto Steinbrinck | | Vigda | 1,851 | | nw |
| 26 Feb 1917 | U 39 | Walter Forstmann | | Burnby | 3,665 | | br |
| 26 Feb 1917 | UB 40 | Hans Howaldt | | Tammerfors | 994 | | ru |
| 26 Feb 1917 | UB 43 | Hans von Mellenthin | | Clan Farquhar | 5,858 | | br |
| 26 Feb 1917 | UC 16 | Egon von Werner | | Sea Gull | 144 | | br |
| 26 Feb 1917 | UC 16 | Egon von Werner | | St. Germain (d.) | 307 | | br |
| 26 Feb 1917 | UC 17 | Ralph Wenninger | | Le Lamentin | 716 | | fr |
| 26 Feb 1917 | UC 37 | Otto Launburg | | Gerolamo Ulloa (d.) | 4,283 | | it |
| 26 Feb 1917 | UC 37 | Otto Launburg | | Victoria | 1,388 | | gr |
| 26 Feb 1917 | UC 65 | Otto Steinbrinck | | Alberdina | 134 | | nl |
| 26 Feb 1917 | UC 65 | Otto Steinbrinck | | Algiers | 2,361 | | br |
| 26 Feb 1917 | UC 65 | Otto Steinbrinck | | Hannah Croasdell | 151 | | br |
| 27 Feb 1917 | U 49 | Richard Hartmann | | Galgorm Castle | 1,596 | | br |
| 27 Feb 1917 | U 49 | Richard Hartmann | | Luigino B. | 1,971 | | it |
| 27 Feb 1917 | U 49 | Richard Hartmann | | Tritonia | 4,445 | | br |
| 27 Feb 1917 | U 70 | Otto Wünsche | | San Patricio (d.) | 9,712 | | br |
| 27 Feb 1917 | UB 43 | Hans von Mellenthin | | Brodmore | 4,071 | | br |
| 27 Feb 1917 | UC 22 | Heino von Heimburg | | Bellorado (d.) | 4,649 | | br |
| 27 Feb 1917 | UC 38 | Alfred Klatt | | Elena M. | 125 | | it |
| 27 Feb 1917 | UC 38 | Alfred Klatt | | S. Ciro Palmerino | 113 | | it |
| 27 Feb 1917 | UC 43 | Erwin Sebelin | | Marie Madeleine | 45 | | fr |
| 27 Feb 1917 | UC 65 | Otto Steinbrinck | | Brunette | 104 | | fr |
| 27 Feb 1917 | UC 65 | Otto Steinbrinck | | Evadne | 189 | | br |
| 28 Feb 1917 | U 65 | Hermann von Fischel | | Emancipato | 30 | | it |
| 28 Feb 1917 | UB 18 | Claus Lafrenz | | Harriet Williams | 157 | | br |
| 28 Feb 1917 | UB 40 | Hans Howaldt | | Immaculee Conception | 36 | | fr |
| 28 Feb 1917 | UB 43 | Hans von Mellenthin | | Shinsei Maru | 3,060 |  | jp |
| 28 Feb 1917 | UC 35 | Ernst von Voigt | | Cassini | 970 | | fr |
| 28 Feb 1917 | UC 35 | Ernst von Voigt | | Elisabetta Concettina | 45 | | it |
| 28 Feb 1917 | UC 35 | Ernst von Voigt | | Giustina Madre | 35 | | it |
| 28 Feb 1917 | UC 65 | Otto Steinbrinck | | Marie Joseph | 192 | | fr |
| 28 Feb 1917 | UC 65 | Otto Steinbrinck | | Sjøstad | 1,155 | | nw |
|
| 651,995 | | | 301 ships sunk (506,057 tons) and 27 ships damaged (145,938 tons).
Legend
(d.) means the ship was damaged.
We have a picture of this vessel.
|
This map shows where Allied ships were hit during February 1917.
In some cases the exact positions of losses are not known, those are not shown.
