February 1917
The British Destroyer HMS Ghurka. She was hit by UC 47 on 8 Feb 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.
Ships hit by U-boats during February 1917
| Date | U-boat | Commander | Name of ship | Type of ship | Tons | Nat. | ||
|---|---|---|---|---|---|---|---|---|
| 1 Feb 1917 | U 55 | Wilhelm Werner | Ada | Fishing vessel (smack) | 24 |  | br | |
| 1 Feb 1917 | U 55 | Wilhelm Werner | Essonite | Steamer | 589 | | br | |
| 1 Feb 1917 | U 55 | Wilhelm Werner | Inverlyon | Fishing vessel (smack) | 59 | | br | |
| 1 Feb 1917 | U 67 | Hans Nieland | Butron | Steamer | 2,434 |  | sp | |
| 1 Feb 1917 | UB 18 | Claus Lafrenz | Wellhome (d.) | Sailing vessel | 113 | | br | |
| 1 Feb 1917 | UC 21 | Reinhold Saltzwedel | Sainte Helene | Steamer | 2,128 |  | fr | |
| 1 Feb 1917 | UC 32 | Herbert Breyer | Jerv | Steamer | 1,112 |  | nw | |
| 1 Feb 1917 | UC 46 | Friedrich Moecke | Gamma | Steamer | 2,115 |  | nl | |
| 1 Feb 1917 | UC 47 | Paul Hundius | Portia | Steamer | 1,127 | | nw | |
| 2 Feb 1917 | U 45 | Erich Sittenfeld | Garnet Hill | Sailing vessel | 2,272 |  | ru | |
| 2 Feb 1917 | U 53 | Hans Rose | Odin | Steamer | 1,045 | | nw | |
| 2 Feb 1917 | U 55 | Wilhelm Werner | Pomoschnick | Sailing vessel | 167 | | ru | |
| 2 Feb 1917 | U 67 | Hans Nieland | Elikon | Steamer | 1,166 |  | gr | |
| 2 Feb 1917 | U 81 | Raimund Weisbach | Songdal | Sailing vessel | 2,090 | | nw | |
| 2 Feb 1917 | UB 23 | Heinz Ziemer | Gabrielle | Steamer | 1,410 | | fr | |
| 2 Feb 1917 | UC 11 | Benno von Ditfurth | Holdene | Navy Trawler | 274 | | br | |
| 2 Feb 1917 | UC 46 | Friedrich Moecke | Isle Of Arran | Sailing vessel | 1,918 | | br | |
| 3 Feb 1917 | U 43 | Hellmuth Jürst | Hollinside | Steamer | 2,862 | | br | |
| 3 Feb 1917 | U 43 | Hellmuth Jürst | Songelv | Sailing vessel | 2,064 | | nw | |
| 3 Feb 1917 | U 43 | Hellmuth Jürst |  | Wasdale | Sailing vessel | 1,856 | | nw |
| 3 Feb 1917 | U 45 | Erich Sittenfeld | Belford | Sailing vessel | 1,905 | | br | |
| 3 Feb 1917 | U 45 | Erich Sittenfeld | Eavestone | Steamer | 1,858 | | br | |
| 3 Feb 1917 | U 53 | Hans Rose | Housatonic | Steamer | 3,143 |  | am | |
| 3 Feb 1917 | U 54 | Volkhard von Bothmer | Tamara | Sailing vessel | 453 | | nw | |
| 3 Feb 1917 | U 81 | Raimund Weisbach | Port Adelaide | Steamer | 8,181 | | br | |
| 3 Feb 1917 | UB 18 | Claus Lafrenz | Confiante | Sailing vessel | 85 | | fr | |
| 3 Feb 1917 | UB 18 | Claus Lafrenz | Goeland | Sailing vessel | 305 | | fr | |
| 3 Feb 1917 | UB 18 | Claus Lafrenz | | Lars Kruse | Steamer | 1,460 |  | da |
| 3 Feb 1917 | UB 18 | Claus Lafrenz | Sainte Marie | Sailing vessel | 60 | | fr | |
| 4 Feb 1917 | U 43 | Hellmuth Jürst | Turino | Steamer | 4,241 | | br | |
| 4 Feb 1917 | U 45 | Erich Sittenfeld | Eridania | Steamer | 3,171 |  | it | |
| 4 Feb 1917 | U 45 | Erich Sittenfeld | Thor Ii | Sailing vessel | 2,144 | | nw | |
| 4 Feb 1917 | U 53 | Hans Rose | Aimee Maria | Sailing vessel | 327 | | fr | |
| 4 Feb 1917 | U 53 | Hans Rose | Bangpuhtis | Sailing vessel | 259 | | ru | |
| 4 Feb 1917 | U 54 | Volkhard von Bothmer | Floridian | Steamer | 4,777 | | br | |
| 4 Feb 1917 | U 54 | Volkhard von Bothmer | Palmleaf | Tanker | 5,489 | | br | |
| 4 Feb 1917 | U 60 | Karlgeorg Schuster | Ghazee | Steamer | 5,084 | | br | |
| 4 Feb 1917 | U 81 | Raimund Weisbach | Maria | Sailing vessel | 992 | | it | |
| 4 Feb 1917 | U 83 | Bruno Hoppe | Anna Maria | Sailing vessel | 141 | | fr | |
| 4 Feb 1917 | U 83 | Bruno Hoppe | Coquette | Sailing vessel | 167 | | fr | |
| 4 Feb 1917 | UB 18 | Claus Lafrenz | Cerera | Steamer | 3,512 | | ru | |
| 4 Feb 1917 | UB 39 | Heinrich Küstner | Dauntless | Steamer | 2,157 | | br | |
| 4 Feb 1917 | UC 24 | Kurt Willich | Solbakken | Steamer | 2,616 | | nw | |
| 4 Feb 1917 | UC 46 | Friedrich Moecke | Marthe | Sailing vessel | 154 | | fr | |
| 5 Feb 1917 | Frithjof | unknown | | nw | ||||
| 5 Feb 1917 | U 53 | Hans Rose | Bravalla | Steamer | 1,519 |  | sw | |
| 5 Feb 1917 | U 54 | Volkhard von Bothmer | Ainsdale (d.) | Sailing vessel | 1,825 | | br | |
| 5 Feb 1917 | U 54 | Volkhard von Bothmer | Azul | Steamer | 3,074 | | br | |
| 5 Feb 1917 | U 60 | Karlgeorg Schuster | Lux | Tanker | 2,621 | | br | |
| 5 Feb 1917 | U 60 | Karlgeorg Schuster | Warley Pickering | Steamer | 4,196 | | br | |
| 5 Feb 1917 | U 67 | Hans Nieland | Lorton | Sailing vessel | 1,419 |  | pe | |
| 5 Feb 1917 | U 81 | Raimund Weisbach | Wartenfels | Steamer | 4,511 | | br | |
| 5 Feb 1917 | UB 22 | Bernhard Putzier | Resolute | Fishing vessel | 125 | | br | |
| 5 Feb 1917 | UB 34 | Theodor Schultz | Hurstwood | Steamer | 1,229 | | br | |
| 5 Feb 1917 | UB 35 | Rudolf Gebeschus | Vestra | Steamer | 1,021 | | br | |
| 5 Feb 1917 | UB 39 | Heinrich Küstner | Yvonne | Trawler | 123 | | fr | |
| 5 Feb 1917 | UB 40 | Hans Howaldt | Anna Prosper | Fishing vessel | 70 |  | be | |
| 5 Feb 1917 | UB 40 | Hans Howaldt | Emerald | Fishing vessel (smack) | 57 | | br | |
| 5 Feb 1917 | UC 29 | Ernst Rosenow | Primrose | Trawler | 136 | | br | |
| 5 Feb 1917 | UC 46 | Friedrich Moecke | | Argyllshire (d.) | Passenger steamer | 12,097 | | br |
| 6 Feb 1917 | Rossi | Sailing vessel | unknown | | br | |||
| 6 Feb 1917 | U 55 | Wilhelm Werner | Saxon Briton | Steamer | 1,337 | | br | |
| 6 Feb 1917 | U 83 | Bruno Hoppe | Crown Point | Steamer | 5,218 | | br | |
| 6 Feb 1917 | U 85 | Willy Petz | Cliftonian | Steamer | 4,303 | | br | |
| 6 Feb 1917 | U 85 | Willy Petz | Explorer (d.) | Steamer | 7,608 | | br | |
| 6 Feb 1917 | UB 22 | Bernhard Putzier | Adelaide | Trawler | 133 | | br | |
| 6 Feb 1917 | UB 22 | Bernhard Putzier | Romeo | Trawler | 114 | | br | |
| 6 Feb 1917 | UB 22 | Bernhard Putzier | Rupert | Fishing vessel | 114 | | br | |
| 6 Feb 1917 | UB 34 | Theodor Schultz | Ferruccio | Steamer | 2,192 | | it | |
| 6 Feb 1917 | UC 24 | Kurt Willich | | Ellavore | Steamer | 2,733 | | nw |
| 6 Feb 1917 | UC 24 | Kurt Willich | Havgard | Steamer | 1,279 | | nw | |
| 6 Feb 1917 | UC 26 | Matthias Graf von Schmettow | Mona’s Queen (d.) | Passenger steamer | 1,200 | | br | |
| 6 Feb 1917 | UC 46 | Friedrich Moecke | Longset | Navy Trawler | 275 | | br | |
| 7 Feb 1917 | U 38 | Max Valentiner | Aphrodite | Sailing vessel | 130 | | fr | |
| 7 Feb 1917 | U 54 | Volkhard von Bothmer | Saxonian | Tanker | 4,855 | | br | |
| 7 Feb 1917 | U 54 | Volkhard von Bothmer | Wallace (d.) | Steamer | 3,930 | | br | |
| 7 Feb 1917 | U 55 | Wilhelm Werner | Yola | Steamer | 3,504 | | br | |
| 7 Feb 1917 | U 60 | Karlgeorg Schuster | Storskog | Sailing vessel | 2,191 | | nw | |
| 7 Feb 1917 | U 78 | Otto Dröscher | Väring | Steamer | 2,107 | | sw | |
| 7 Feb 1917 | U 81 | Raimund Weisbach | Gravina | Steamer | 1,242 | | br | |
| 7 Feb 1917 | U 83 | Bruno Hoppe | Diaz | Sailing vessel | 637 | | ru | |
| 7 Feb 1917 | U 85 | Willy Petz | | California | Passenger steamer | 8,668 | | br |
| 7 Feb 1917 | U 85 | Willy Petz | Vedamore | Steamer | 6,330 | | br | |
| 7 Feb 1917 | UB 22 | Bernhard Putzier | Boyne Castle | Steamer | 245 | | br | |
| 7 Feb 1917 | UB 22 | Bernhard Putzier | Shakespeare | Trawler | 210 | | br | |
| 7 Feb 1917 | UB 34 | Theodor Schultz | Corsican Prince | Steamer | 2,776 | | br | |
| 7 Feb 1917 | UB 34 | Theodor Schultz | Saint Ninian | Steamer | 3,026 | | br | |
| 7 Feb 1917 | UC 26 | Matthias Graf von Schmettow | Noella | Navy Trawler | 277 | | fr | |
| 7 Feb 1917 | UC 39 | Otto Ehrentraut | Hans Kinck | Steamer | 2,667 | | nw | |
| 8 Feb 1917 | U 81 | Raimund Weisbach | Mantola | Passenger steamer | 8,253 | | br | |
| 8 Feb 1917 | UC 33 | Martin Schelle | Derika | Trawler | 153 | | nl | |
| 8 Feb 1917 | UC 39 | Otto Ehrentraut | Hanna Larsen | Steamer | 1,311 | | br | |
| 8 Feb 1917 | UC 39 | Otto Ehrentraut | Ida | Steamer | 1,172 | | nw | |
| 8 Feb 1917 | UC 47 | Paul Hundius | | Ghurka | Destroyer | 880 | | br |
| 8 Feb 1917 | UC 47 | Paul Hundius | Lullington | Steamer | 2,816 | | br | |
| 8 Feb 1917 | UC 65 | Otto Steinbrinck | Guillaume Tell | Sailing vessel | 148 | | fr | |
| 8 Feb 1917 | UC 65 | Otto Steinbrinck | Mary Ann | Fishing vessel | 17 | | br | |
| 9 Feb 1917 | U 43 | Hellmuth Jürst | Famiglia | Steamer | 2,942 | | it | |
| 9 Feb 1917 | U 53 | Hans Rose | Marian | Fishing vessel (sail) | 71 | | nl | |
| 9 Feb 1917 | UB 22 | Bernhard Putzier | Benbow | Fishing vessel | 172 | | br | |
| 9 Feb 1917 | UB 22 | Bernhard Putzier | Duke Of York | Trawler | 150 | | br | |
| 9 Feb 1917 | UC 29 | Ernst Rosenow | Yesso | Navy Trawler | 229 | | br | |
| 10 Feb 1917 | U 45 | Erich Sittenfeld | Ostrich | Trawler | 148 | | br | |
| 10 Feb 1917 | U 81 | Raimund Weisbach | Netherlee | Steamer | 4,227 | | br | |
| 10 Feb 1917 | U 83 | Bruno Hoppe | Paquerette | Sailing vessel | 164 | | fr | |
| 10 Feb 1917 | UB 22 | Bernhard Putzier | Athenian | Fishing vessel | 171 | | br | |
| 10 Feb 1917 | UB 22 | Bernhard Putzier | Bellax | Steamer | 1,107 | | nw | |
| 10 Feb 1917 | UB 22 | Bernhard Putzier | Ireland | Trawler | 152 | | br | |
| 10 Feb 1917 | UB 39 | Heinrich Küstner | Rancagua | Sailing vessel | 2,729 | | fr | |
| 10 Feb 1917 | UC 21 | Reinhold Saltzwedel | Beechtree | Steamer | 1,277 | | br | |
| 10 Feb 1917 | UC 29 | Ernst Rosenow | San Fraterno (d.) | Tanker | 9,587 | | br | |
| 10 Feb 1917 | UC 47 | Paul Hundius | Japanese Prince | Steamer | 4,876 | | br | |
| 10 Feb 1917 | UC 65 | Otto Steinbrinck | Sallagh | Steamer | 325 | | br | |
| 11 Feb 1917 | U 35 | Lothar von Arnauld de la Perière | Assunta | Sailing vessel | 132 | | it | |
| 11 Feb 1917 | UB 38 | Wilhelm Amberger | Dalmata | Steamer | 1,773 | | nw | |
| 11 Feb 1917 | UC 21 | Reinhold Saltzwedel | Dernes | Steamer | 738 | | nw | |
| 11 Feb 1917 | UC 29 | Ernst Rosenow | Norwood | Steamer | 798 | | br | |
| 11 Feb 1917 | UC 29 | Ernst Rosenow | Roanoke (d.) | 3,455 | | br | ||
| 11 Feb 1917 | UC 44 | Kurt Tebbenjohanns | Ashwold | Fishing vessel | 129 | | br | |
| 11 Feb 1917 | UC 65 | Otto Steinbrinck | Lycia | Steamer | 2,715 | | br | |
| 11 Feb 1917 | UC 65 | Otto Steinbrinck | Olivia | Steamer | 242 | | br | |
| 11 Feb 1917 | UC 65 | Otto Steinbrinck | Voltaire | Steamer | 409 | | br | |
| 11 Feb 1917 | UC 66 | Herbert Pustkuchen | Ada | Sailing vessel | 187 | | br | |
| 11 Feb 1917 | UC 66 | Herbert Pustkuchen | Vasilissa Olga | Steamer | 1,400 | | gr | |
| 11 Feb 1917 | UC 66 | Herbert Pustkuchen | Woodfield (d.) | Steamer | 4,300 | | br | |
| 12 Feb 1917 | U 35 | Lothar von Arnauld de la Perière | Lyman M. Law | Sailing vessel | 1,300 | | am | |
| 12 Feb 1917 | U 81 | Raimund Weisbach | Hugo Hamilton | Auxiliary motor | 2,577 | | sw | |
| 12 Feb 1917 | UC 11 | Benno von Ditfurth | Foreland | Steamer | 1,960 | | br | |
| 12 Feb 1917 | UC 21 | Reinhold Saltzwedel | Nordcap | steamer | 332 | | nw | |
| 12 Feb 1917 | UC 30 | Heinrich Stenzler | Euston | Navy Trawler | 209 | | br | |
| 12 Feb 1917 | UC 36 | Gustav Buch | West | Motor vessel | 378 | | nw | |
| 12 Feb 1917 | UC 44 | Kurt Tebbenjohanns | | Adolf | Steamer | 835 | | sw |
| 12 Feb 1917 | UC 44 | Kurt Tebbenjohanns | Dale | Fishing vessel | 198 | | br | |
| 12 Feb 1917 | UC 47 | Paul Hundius | Aghios Spyridon | Steamer | 1,618 | | gr | |
| 12 Feb 1917 | UC 47 | Paul Hundius | Brissons | Fishing vessel (smack) | 60 | | br | |
| 12 Feb 1917 | UC 65 | Otto Steinbrinck | Pinna (d.) | Tanker | 6,288 | | br | |
| 12 Feb 1917 | UC 66 | Herbert Pustkuchen | | Afric | Passenger steamer | 11,999 | | br |
| 12 Feb 1917 | UC 66 | Herbert Pustkuchen | Lucent | Steamer | 1,409 | | br | |
| 13 Feb 1917 | U 35 | Lothar von Arnauld de la Perière | Percy Roy | Sailing vessel | 110 | | br | |
| 13 Feb 1917 | U 78 | Otto Dröscher | Barnsley | Trawler | 144 | | br | |
| 13 Feb 1917 | UC 21 | Reinhold Saltzwedel | Progreso | Steamer | 1,620 | | nw | |
| 13 Feb 1917 | UC 4 | Georg Reimarus | Sisters Melville | Navy trawler | 260 | | br | |
| 13 Feb 1917 | UC 44 | Kurt Tebbenjohanns | King Alfred | Fishing vessel | 159 | | br | |
| 13 Feb 1917 | UC 47 | Paul Hundius | F. D. Lambert | Steamer | 2,195 | | br | |
| 13 Feb 1917 | UC 47 | Paul Hundius | Fleurette | Fishing vessel (smack) | 60 | | br | |
| 13 Feb 1917 | UC 47 | Paul Hundius | Sequoya (d.) | Tanker | 5,263 | | br | |
| 13 Feb 1917 | UC 65 | Otto Steinbrinck | Friendship | Fishing vessel (smack) | 37 | | br | |
| 13 Feb 1917 | UC 65 | Otto Steinbrinck | Zircon | Fishing vessel (smack) | 48 | | br | |
| 14 Feb 1917 | U 35 | Lothar von Arnauld de la Perière | Mery | Sailing vessel | 178 | | ru | |
| 14 Feb 1917 | U 35 | Lothar von Arnauld de la Perière | Oceania | Steamer | 4,217 | | it | |
| 14 Feb 1917 | U 38 | Max Valentiner | Michele | Sailing vessel | 41 | | it | |
| 14 Feb 1917 | U 38 | Max Valentiner | Trowbridge (d.) | Steamer | 3,712 | | br | |
| 14 Feb 1917 | U 39 | Walter Forstmann | Torino | Passenger steamer | 4,159 | | it | |
| 14 Feb 1917 | U 60 | Karlgeorg Schuster | Hopemoor | Steamer | 3,740 | | br | |
| 14 Feb 1917 | UC 11 | Benno von Ditfurth | Marie Leonhardt | Steamer | 1,466 | | br | |
| 14 Feb 1917 | UC 21 | Reinhold Saltzwedel | Longscar | Steamer | 2,777 | | br | |
| 14 Feb 1917 | UC 21 | Reinhold Saltzwedel | Mar Adriatico | Steamer | 2,410 | | sp | |
| 14 Feb 1917 | UC 33 | Martin Schelle | Eudora | Sailing vessel | 1,991 | | br | |
| 14 Feb 1917 | UC 44 | Kurt Tebbenjohanns | Belvoir Castle | Trawler | 221 | | br | |
| 14 Feb 1917 | UC 44 | Kurt Tebbenjohanns | Mary Bell | Trawler | 144 | | br | |
| 14 Feb 1917 | UC 65 | Otto Steinbrinck | Ferga | Steamer | 791 | | br | |
| 14 Feb 1917 | UC 65 | Otto Steinbrinck | Greenland | Steamer | 1,753 | | br | |
| 14 Feb 1917 | UC 65 | Otto Steinbrinck | Inishowen Head | Steamer | 3,050 | | br | |
| 14 Feb 1917 | UC 65 | Otto Steinbrinck | Margarita | Steamer | 375 | | br | |
| 14 Feb 1917 | UC 70 | Werner Fürbringer | Marthe Yvonne | Pilot boat | 30 | | fr | |
| 15 Feb 1917 | U 35 | Lothar von Arnauld de la Perière | Buranda (d.) | Steamer | 3,651 | | br | |
| 15 Feb 1917 | U 39 | Walter Forstmann | Minas | Troopship | 2,854 | | it | |
| 15 Feb 1917 | U 78 | Otto Dröscher | Stralsund | steamer | 510 | | nw | |
| 15 Feb 1917 | U 80 | Alfred von Glasenapp | | Celtic (d.) | Passenger steamer | 20,904 | | br |
| 15 Feb 1917 | UC 16 | Egon von Werner | Leven | Dredger | 775 | | br | |
| 15 Feb 1917 | UC 21 | Reinhold Saltzwedel | Aline | Sailing vessel | 30 | | fr | |
| 15 Feb 1917 | UC 21 | Reinhold Saltzwedel | Marion Dawson | Steamer | 2,300 | | br | |
| 15 Feb 1917 | UC 65 | Otto Steinbrinck | Afton | Passenger steamer | 1,156 | | br | |
| 15 Feb 1917 | UC 65 | Otto Steinbrinck | Kyanite | Steamer | 564 | | br | |
| 15 Feb 1917 | UC 66 | Herbert Pustkuchen | Alma Jeanne | Sailing vessel (lugger) | 33 | | fr | |
| 15 Feb 1917 | UC 66 | Herbert Pustkuchen | Argos | Sailing vessel | 26 | | fr | |
| 15 Feb 1917 | UC 66 | Herbert Pustkuchen | Desire Louise | Sailing vessel | 31 | | fr | |
| 16 Feb 1917 | U 21 | Otto Hersing | Mayola | Sailing vessel | 146 | | br | |
| 16 Feb 1917 | U 21 | Otto Hersing | Rose Dorothea | Sailing vessel | 147 | | br | |
| 16 Feb 1917 | U 35 | Lothar von Arnauld de la Perière | Oriana | Steamer | 3,132 | | it | |
| 16 Feb 1917 | U 35 | Lothar von Arnauld de la Perière | Prudenza | Steamer | 3,307 | | it | |
| 16 Feb 1917 | UB 21 | Franz Walther | Lady Ann | steamer | 1,016 | | br | |
| 16 Feb 1917 | UC 17 | Ralph Wenninger | | Hermine | Steamer | 3,940 | | fr |
| 16 Feb 1917 | UC 21 | Reinhold Saltzwedel | Niobe | Steamer | 1,319 | | fr | |
| 16 Feb 1917 | UC 21 | Reinhold Saltzwedel | Pollcrea (d.) | Steamer | 1,209 | | br | |
| 16 Feb 1917 | UC 30 | Heinrich Stenzler | Recepto | Navy Trawler | 245 | | br | |
| 16 Feb 1917 | UC 38 | Alfred Klatt | Laertis | Stamer | 3,914 | | gr | |
| 16 Feb 1917 | UC 65 | Otto Steinbrinck | Queenswood | Steamer | 2,710 | | br | |
| 16 Feb 1917 | UC 65 | Otto Steinbrinck | Ville De Bayonne | Steamer | 1,301 | | fr | |
| 17 Feb 1917 | U 21 | Otto Hersing | Emilia I° | Sailing vessel | 25 |  | pt | |
| 17 Feb 1917 | U 21 | Otto Hersing | Lima | Sailing vessel | 108 | | pt | |
| 17 Feb 1917 | U 35 | Lothar von Arnauld de la Perière | Pierre Hubert | Sailing vessel | 112 | | it | |
| 17 Feb 1917 | U 39 | Walter Forstmann | Ala | Sailing vessel | 359 | | it | |
| 17 Feb 1917 | U 60 | Karlgeorg Schuster | Dalbeattie | Steamer | 1,327 | | nw | |
| 17 Feb 1917 | U 60 | Karlgeorg Schuster | Iolo | Steamer | 3,840 | | br | |
| 17 Feb 1917 | U 64 | Robert Moraht | Hawk | Navy Trawler | 243 | | br | |
| 17 Feb 1917 | U 64 | Robert Moraht | Okement | Steamer | 4,349 | | br | |
| 17 Feb 1917 | U 65 | Hermann von Fischel | | Athos | Passenger steamer | 12,644 | | fr |
| 17 Feb 1917 | U 83 | Bruno Hoppe | Farnborough (d.) | Q-ship | 3,207 | | br | |
| 17 Feb 1917 | U 84 | Walter Roehr | Bayonne | Sailing vessel | 2,589 | | fr | |
| 17 Feb 1917 | U 84 | Walter Roehr | Romsdalen | Steamer | 2,548 | | br | |
| 17 Feb 1917 | UB 21 | Franz Walther | Excel | Trawler | 157 | | br | |
| 17 Feb 1917 | UC 21 | Reinhold Saltzwedel | Cabo | Steamer | 1,254 | | nw | |
| 17 Feb 1917 | UC 21 | Reinhold Saltzwedel | Silene | Sailing vessel | 171 | | fr | |
| 17 Feb 1917 | UC 66 | Herbert Pustkuchen | Driebergen | Steamer | 1,884 | | nl | |
| 17 Feb 1917 | UC 66 | Herbert Pustkuchen | Ootmarsum | Steamer | 2,313 | | nl | |
| 17 Feb 1917 | UC 66 | Herbert Pustkuchen | Trompenberg | Steamer | 1,608 | | nl | |
| 18 Feb 1917 | U 35 | Lothar von Arnauld de la Perière | Giuseppe | Steamer | 1,856 | | it | |
| 18 Feb 1917 | U 35 | Lothar von Arnauld de la Perière | Guido T | Sailing vessel | 324 | | it | |
| 18 Feb 1917 | U 35 | Lothar von Arnauld de la Perière | Skogland | Steamer | 3,264 | | sw | |
| 18 Feb 1917 | U 50 | Gerhard Berger | Jean Pierre | Sailing vessel | 449 | | fr | |
| 18 Feb 1917 | U 64 | Robert Moraht | Asturian (d.) | Steamer | 3,193 | | br | |
| 18 Feb 1917 | U 84 | Walter Roehr | | Berrima (d.) | Passenger steamer | 11,137 | | br |
| 18 Feb 1917 | U 84 | Walter Roehr | Hunsworth (d.) | Steamer | 2,991 | | br | |
| 18 Feb 1917 | U 84 | Walter Roehr | Juno | Steamer | 2,416 | | nw | |
| 18 Feb 1917 | U 84 | Walter Roehr | Valdes | Steamer | 2,233 | | br | |
| 18 Feb 1917 | UC 17 | Ralph Wenninger | Thorgny | Steamer | 734 | | nw | |
| 18 Feb 1917 | UC 18 | Wilhelm Kiel | Netherton | Sailing vessel | 199 | | br | |
| 18 Feb 1917 | UC 21 | Reinhold Saltzwedel | Triumph | Sailing vessel | 52 | | br | |
| 18 Feb 1917 | UC 33 | Martin Schelle | Clifton | Navy Trawler | 242 | | br | |
| 19 Feb 1917 | U 49 | Richard Hartmann | Sigrid | Steamer | 2,194 | | ru | |
| 19 Feb 1917 | U 64 | Robert Moraht | Corso | Steamer | 3,242 | | br | |
| 19 Feb 1917 | U 67 | Hans Nieland | Headley | Steamer | 4,953 | | br | |
| 19 Feb 1917 | U 71 | Hugo Schmidt | Halcyon | Trawler | 190 | | br | |
| 19 Feb 1917 | UC 17 | Ralph Wenninger | Centurion | Sailing vessel | 1,828 | | br | |
| 19 Feb 1917 | UC 17 | Ralph Wenninger | Picton Castle | Navy Trawler | 245 | | br | |
| 19 Feb 1917 | UC 18 | Wilhelm Kiel | Lady Olive | Q-ship | 701 | | br | |
| 19 Feb 1917 | UC 21 | Reinhold Saltzwedel | Rutenfjell | Steamer | 1,844 | | nw | |
| 19 Feb 1917 | UC 38 | Alfred Klatt | Quinto | Steamer | 1,796 | | it | |
| 19 Feb 1917 | UC 65 | Otto Steinbrinck | Alice | Fishing vessel | 18 | | fr | |
| 19 Feb 1917 | UC 65 | Otto Steinbrinck | Brigade | Steamer | 425 | | br | |
| 19 Feb 1917 | UC 65 | Otto Steinbrinck | Justine Marie | Fishing vessel | 16 | | be | |
| 19 Feb 1917 | UC 65 | Otto Steinbrinck | Saint Louis De Gonzague | Fishing vessel | 53 | | fr | |
| 19 Feb 1917 | UC 65 | Otto Steinbrinck | Skrim | Steamer | 727 | | nw | |
| 19 Feb 1917 | UC 65 | Otto Steinbrinck | Violette | 36 | | fr | ||
| 20 Feb 1917 | U 21 | Otto Hersing | Cacique | Steamer | 2,917 | | fr | |
| 20 Feb 1917 | U 39 | Walter Forstmann | Rosalie | Steamer | 4,237 | | br | |
| 20 Feb 1917 | UC 17 | Ralph Wenninger | Falls Of Afton | Sailing vessel | 1,965 | | nw | |
| 20 Feb 1917 | UC 38 | Alfred Klatt | Doravore | Steamer | 2,760 | | nw | |
| 21 Feb 1917 | Re Umberto | Sailing vessel | 80 | | it | |||
| 21 Feb 1917 | U 39 | Walter Forstmann | Wathfield | Steamer | 3,012 | | br | |
| 21 Feb 1917 | U 60 | Karlgeorg Schuster | Tecwyn | Auxiliary motor | 132 | | br | |
| 21 Feb 1917 | U 84 | Walter Roehr | Dukat | Steamer | 1,408 | | nw | |
| 21 Feb 1917 | UB 40 | Hans Howaldt | Alice | Steamer | 709 | | nw | |
| 21 Feb 1917 | UC 17 | Ralph Wenninger | Manningham | steamer | 1,988 | | sw | |
| 21 Feb 1917 | UC 23 | Johannes Kirchner | Princess Alberta | Fleet Messenger | 1,586 | | br | |
| 21 Feb 1917 | UC 66 | Herbert Pustkuchen | Energy | Fishing Vessel (Smack) | 25 | | br | |
| 21 Feb 1917 | UC 66 | Herbert Pustkuchen | K.L.M. | Fishing vessel (smack) | 28 | | br | |
| 21 Feb 1917 | UC 66 | Herbert Pustkuchen | Monarch | Fishing Vessel (Smack) | 35 | | br | |
| 22 Feb 1917 | U 21 | Otto Hersing | | Bandoeng | Steamer | 5,851 | | nl |
| 22 Feb 1917 | U 21 | Otto Hersing | Eemland | Steamer | 3,770 | | nl | |
| 22 Feb 1917 | U 21 | Otto Hersing | Gaasterland | Steamer | 3,917 | | nl | |
| 22 Feb 1917 | U 21 | Otto Hersing | Jacatra | Steamer | 5,373 | | nl | |
| 22 Feb 1917 | U 21 | Otto Hersing | | Menado (d.) | Steamer | 5,874 | | nl |
| 22 Feb 1917 | U 21 | Otto Hersing | Noorderdijk | Steamer | 7,166 | | nl | |
| 22 Feb 1917 | U 21 | Otto Hersing | Normanna | Steamer | 2,900 | | nw | |
| 22 Feb 1917 | U 21 | Otto Hersing | | Zaandijk | Steamer | 4,189 | | nl |
| 22 Feb 1917 | U 39 | Walter Forstmann | Ville De Bougie | steamer | 508 | | fr | |
| 22 Feb 1917 | U 50 | Gerhard Berger | Blenheim | Sailing vessel | 1,144 | | nw | |
| 22 Feb 1917 | U 84 | Walter Roehr | Invercauld | Sailing vessel | 1,416 | | br | |
| 22 Feb 1917 | UB 21 | Franz Walther | John Miles | Steamer | 687 | | br | |
| 22 Feb 1917 | UC 17 | Ralph Wenninger | Ajax | Steamer | 1,468 | | nw | |
| 22 Feb 1917 | UC 17 | Ralph Wenninger | Saint Sauveur | Sailing vessel | 158 | | fr | |
| 22 Feb 1917 | UC 35 | Ernst von Voigt | Nostra Signora Del Porto Salvo | Sailing vessel | 136 | | br | |
| 22 Feb 1917 | UC 38 | Alfred Klatt | Adelina | Sailing vessel | 528 | | it | |
| 22 Feb 1917 | UC 38 | Alfred Klatt | Ape | Sailing vessel | 301 | | it | |
| 22 Feb 1917 | UC 38 | Alfred Klatt | Giovanni P. | Sailing vessel | 105 | | it | |
| 22 Feb 1917 | UC 38 | Alfred Klatt | Michelino | Sailing vessel | 20 | | it | |
| 22 Feb 1917 | UC 38 | Alfred Klatt | San Michele | Sailing vessel | 583 | | it | |
| 22 Feb 1917 | UC 38 | Alfred Klatt | Vincenzino | Sailing vessel | 20 | | it | |
| 22 Feb 1917 | UC 42 | Otto Heinrich Tornow | Frolic | Trawler | 183 | | br | |
| 22 Feb 1917 | UC 42 | Otto Heinrich Tornow | Lord Collingwood | Trawler | 148 | | br | |
| 22 Feb 1917 | UC 6 | Werner von Zerboni di Sposetti | Ashtabula (d.) | Tanker | 7,025 | | br | |
| 22 Feb 1917 | UC 66 | Herbert Pustkuchen | Ambon (d.) | Steamer | 3,598 | | nl | |
| 23 Feb 1917 | U 35 | Lothar von Arnauld de la Perière | Longhirst | Steamer | 3,053 | | br | |
| 23 Feb 1917 | U 35 | Lothar von Arnauld de la Perière | | Mont Viso (d.) | Steamer | 4,820 | | fr |
| 23 Feb 1917 | U 39 | Walter Forstmann | | Trojan Prince | Steamer | 3,196 | | br |
| 23 Feb 1917 | UC 17 | Ralph Wenninger | Belgier | Steamer | 4,588 | | br | |
| 23 Feb 1917 | UC 17 | Ralph Wenninger | Iser | Steamer | 2,160 | | br | |
| 23 Feb 1917 | UC 17 | Ralph Wenninger | Nyland | Steamer | 1,824 | | nw | |
| 23 Feb 1917 | UC 4 | Georg Reimarus | Grenadier | Steamer | 1,004 | | br | |
| 24 Feb 1917 | U 35 | Lothar von Arnauld de la Perière | Dorothy | Steamer | 3,806 | | br | |
| 24 Feb 1917 | U 35 | Lothar von Arnauld de la Perière | Prikonisos | Steamer | 3,537 | | gr | |
| 24 Feb 1917 | U 50 | Gerhard Berger | Falcon | Steamer | 2,244 | | br | |
| 24 Feb 1917 | U 65 | Hermann von Fischel | Venere | Sailing vessel | 290 | | it | |
| 24 Feb 1917 | UB 43 | Hans von Mellenthin | Miaoulis | Steamer | 2,918 | | gr | |
| 24 Feb 1917 | UC 17 | Ralph Wenninger | Salamis | Steamer | 995 | | gr | |
| 24 Feb 1917 | UC 31 | Otto von Schrader | Beneficent | steamer | 1,963 | | br | |
| 24 Feb 1917 | UC 33 | Martin Schelle | Verona | Navy Yacht | 437 | | br | |
| 24 Feb 1917 | UC 38 | Alfred Klatt | Albina | Sailing vessel | 187 | | it | |
| 25 Feb 1917 | U 50 | Gerhard Berger | Aries | Steamer | 3,071 | | br | |
| 25 Feb 1917 | U 50 | Gerhard Berger | Huntsman | Steamer | 7,460 | | br | |
| 25 Feb 1917 | U 50 | Gerhard Berger | Laconia | Passenger steamer | 18,099 | | br | |
| 25 Feb 1917 | UB 40 | Hans Howaldt | Maria Adriana | Sailing vessel | 88 | | nl | |
| 25 Feb 1917 | UC 17 | Ralph Wenninger | Kleber | Sailing vessel | 95 | | fr | |
| 25 Feb 1917 | UC 65 | Otto Steinbrinck | Saint Joseph | Fishing vessel (sail) | 42 | | fr | |
| 25 Feb 1917 | UC 65 | Otto Steinbrinck | Vigda | Steamer | 1,851 | | nw | |
| 26 Feb 1917 | U 39 | Walter Forstmann | Burnby | Steamer | 3,665 | | br | |
| 26 Feb 1917 | UB 40 | Hans Howaldt | Tammerfors | Steamer | 994 | | ru | |
| 26 Feb 1917 | UB 43 | Hans von Mellenthin | Clan Farquhar | Steamer | 5,858 | | br | |
| 26 Feb 1917 | UC 16 | Egon von Werner | Sea Gull | Steamer | 144 | | br | |
| 26 Feb 1917 | UC 16 | Egon von Werner | St. Germain (d.) | Navy trawler | 307 | | br | |
| 26 Feb 1917 | UC 17 | Ralph Wenninger | Le Lamentin | Sailing vessel | 716 | | fr | |
| 26 Feb 1917 | UC 37 | Otto Launburg | Gerolamo Ulloa (d.) | Steamer | 4,283 | | it | |
| 26 Feb 1917 | UC 37 | Otto Launburg | Victoria | steamer | 1,388 | | gr | |
| 26 Feb 1917 | UC 65 | Otto Steinbrinck | Alberdina | Sailing vessel | 134 | | nl | |
| 26 Feb 1917 | UC 65 | Otto Steinbrinck | Algiers | steamer | 2,361 | | br | |
| 26 Feb 1917 | UC 65 | Otto Steinbrinck | Hannah Croasdell | Sailing vessel | 151 | | br | |
| 27 Feb 1917 | U 49 | Richard Hartmann | Galgorm Castle | Sailing vessel | 1,596 | | br | |
| 27 Feb 1917 | U 49 | Richard Hartmann | Luigino B. | Steamer | 1,971 | | it | |
| 27 Feb 1917 | U 49 | Richard Hartmann | Tritonia | Steamer | 4,445 | | br | |
| 27 Feb 1917 | U 70 | Otto Wünsche | San Patricio (d.) | Tanker | 9,712 | | br | |
| 27 Feb 1917 | UB 43 | Hans von Mellenthin | Brodmore | Steamer | 4,071 | | br | |
| 27 Feb 1917 | UC 22 | Heino von Heimburg | Bellorado (d.) | Steamer | 4,649 | | br | |
| 27 Feb 1917 | UC 38 | Alfred Klatt | Elena M. | Sailing vessel | 125 | | it | |
| 27 Feb 1917 | UC 38 | Alfred Klatt | S. Ciro Palmino | Sailing vessel | 113 | | it | |
| 27 Feb 1917 | UC 43 | Erwin Sebelin | Marie Madeleine | Sailing vessel | 45 | | fr | |
| 27 Feb 1917 | UC 65 | Otto Steinbrinck | Brunette | Sailing vessel | 104 | | fr | |
| 27 Feb 1917 | UC 65 | Otto Steinbrinck | Evadne | Navy Trawler | 189 | | br | |
| 28 Feb 1917 | U 65 | Hermann von Fischel | Emancipato | Sailing vessel | 30 | | it | |
| 28 Feb 1917 | UB 18 | Claus Lafrenz | Harriet Williams | Sailing vessel | 157 | | br | |
| 28 Feb 1917 | UB 40 | Hans Howaldt | Immaculee Conception | Sailing vessel | 36 | | fr | |
| 28 Feb 1917 | UB 43 | Hans von Mellenthin | Shinsei Maru | Steamer | 3,060 |  | jp | |
| 28 Feb 1917 | UC 35 | Ernst von Voigt | | Cassini | Minelayer | 970 | | fr |
| 28 Feb 1917 | UC 35 | Ernst von Voigt | Elisabetta Concettina | Sailing vessel | 45 | | it | |
| 28 Feb 1917 | UC 35 | Ernst von Voigt | Giustina Madre | Sailing vessel | 35 | | it | |
| 28 Feb 1917 | UC 65 | Otto Steinbrinck | Marie Joseph | Sailing vessel | 192 | | fr | |
| 28 Feb 1917 | UC 65 | Otto Steinbrinck | Sjøstad | Steamer | 1,155 | | nw | |
| 651,994 | ||||||||
| 301 ships sunk (506,056 tons) and 27 ships damaged (145,938 tons).
| ||||||||