August 1917
The Italian Steamer Milazzo. She was hit by k.u.k. U14 on 29 Aug 1917.
This is the full listing of all ships hit during August 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 August 1917
| Date | U-boat | Commander | Name of ship | Type of ship | Tons | Nat. | ||
|---|---|---|---|---|---|---|---|---|
| 1 Aug 1917 | U 155 | Karl Meusel | Alexandre | Sailing vessel | 2,671 |  | fr | |
| 1 Aug 1917 | U 33 | Gustav Sieß | Llandudno | Steamer | 4,187 |  | br | |
| 1 Aug 1917 | U 72 | Johannes Feldkirchner | Rokeby (d.) | Steamer | 3,786 | | br | |
| 1 Aug 1917 | UB 31 | Thomas Bieber | Alcyone | Motor vessel | 149 | | br | |
| 1 Aug 1917 | UB 31 | Thomas Bieber | Laertes | Steamer | 4,541 | | br | |
| 1 Aug 1917 | UC 75 | Johannes Lohs | Karina | Passenger steamer | 4,222 | | br | |
| 2 Aug 1917 | U 155 | Karl Meusel | Marthe | Sailing vessel | 3,119 | | fr | |
| 2 Aug 1917 | U 61 | Victor Dieckmann | Libia | Steamer | 2,416 | | fr | |
| 2 Aug 1917 | UB 31 | Thomas Bieber | Newlyn | Steamer | 4,019 | | br | |
| 2 Aug 1917 | UC 23 | Volkhard von Bothmer | Ermine | Fleet messenger | 1,777 | | br | |
| 2 Aug 1917 | UC 63 | Karsten von Heydebreck | Young Bert | Fishing vessel (smack) | 59 | | br | |
| 3 Aug 1917 | U 39 | Walter Forstmann | Halldor | Steamer | 2,919 |  | nw | |
| 3 Aug 1917 | UB 31 | Thomas Bieber | Renee Marthe | Sailing vessel | 49 | | fr | |
| 3 Aug 1917 | UC 22 | Erich Wiesenbach | San Nicola | Sailing vessel | 30 |  | it | |
| 3 Aug 1917 | UC 29 | Ernst Rosenow | Hornchurch | Steamer | 2,159 | | br | |
| 3 Aug 1917 | UC 71 | Reinhold Saltzwedel | Aube | Steamer | 1,837 | | br | |
| 3 Aug 1917 | UC 75 | Johannes Lohs | Beechpark | Steamer | 4,763 | | br | |
| 3 Aug 1917 | UC 75 | Johannes Lohs | Mary B. Mitchell (d.) | Q-ship | 227 | | br | |
| 4 Aug 1917 | U 33 | Gustav Sieß | Angelina T. | Sailing vessel | 146 | | it | |
| 4 Aug 1917 | U 61 | Victor Dieckmann | Countess Of Mar | Steamer | 2,234 | | br | |
| 4 Aug 1917 | U 72 | Johannes Feldkirchner | British Monarch | Steamer | 5,749 | | br | |
| 4 Aug 1917 | UB 22 | Karl Wacker | Azira | Steamer | 1,144 | | br | |
| 4 Aug 1917 | UC 71 | Reinhold Saltzwedel | Afrique (d.) | Steamer | 2,457 | | fr | |
| 4 Aug 1917 | UC 71 | Reinhold Saltzwedel | Cairnstrath | Steamer | 2,128 | | br | |
| 5 Aug 1917 | U 100 | Degenhart von Loë | Kathleen | Steamer | 3,915 | | br | |
| 5 Aug 1917 | U 39 | Walter Forstmann | Ryton | Steamer | 3,991 | | br | |
| 5 Aug 1917 | U 44 | Paul Wagenführ |  | Bracondale | Q-ship | 2,095 | | br |
| 5 Aug 1917 | U 61 | Victor Dieckmann | Campo Libre | Fishing vessel | 50 |  | sp | |
| 5 Aug 1917 | U 61 | Victor Dieckmann | Sauternes | Steamer | 902 | | fr | |
| 6 Aug 1917 | U 101 | Karl Koopmann | Rosemount | Steamer | 3,044 | | br | |
| 6 Aug 1917 | U 55 | Wilhelm Werner | Eugenia | Steamer | 4,835 | | it | |
| 6 Aug 1917 | U 61 | Victor Dieckmann | Campana | Steamer | 3,675 |  | am | |
| 6 Aug 1917 | U 61 | Victor Dieckmann | Jeanne Et Genevieve (d.) | Q-ship | 695 | | fr | |
| 6 Aug 1917 | U 94 | Alfred Saalwächter | Argalia | Steamer | 4,641 | | br | |
| 6 Aug 1917 | UB 22 | Karl Wacker | | Jenny | Sailing vessel | 293 |  | da |
| 6 Aug 1917 | UB 22 | Karl Wacker | Narcissus | Drifter | 58 | | br | |
| 6 Aug 1917 | UB 41 | Günther Krause | Talisman | Steamer | 153 | | br | |
| 6 Aug 1917 | UC 27 | Gerhard Schulz | El Kaddra Nr. 53 | 20 |  | tu | ||
| 6 Aug 1917 | UC 40 | Gustav Deuerlich | Polanna | Steamer | 2,345 | | br | |
| 6 Aug 1917 | UC 42 | Hans Albrecht Müller | Baysoto | Steamer | 3,082 | | br | |
| 6 Aug 1917 | UC 63 | Karsten von Heydebreck | Alfred | Sailing vessel | 107 | | fr | |
| 6 Aug 1917 | UC 63 | Karsten von Heydebreck | Fane | Steamer | 1,119 | | nw | |
| 6 Aug 1917 | UC 63 | Karsten von Heydebreck | Zamora (d.) | Steamer | 3,639 | | br | |
| 7 Aug 1917 | U 155 | Karl Meusel | Christiane | Sailing vessel | 964 | | am | |
| 7 Aug 1917 | U 155 | Karl Meusel | Iran | Steamer | 6,250 | | br | |
| 7 Aug 1917 | U 22 | Hinrich Hermann Hashagen | Jarl | steamer | 1,643 |  | sw | |
| 7 Aug 1917 | U 61 | Victor Dieckmann | Trento | Steamer | 3,276 | | it | |
| 7 Aug 1917 | UC 27 | Gerhard Schulz | Esemplare | Steamer | 999 | | it | |
| 7 Aug 1917 | UC 31 | Kurt Siewert | Othalia (d.) | Steamer | 1,205 | | sw | |
| 7 Aug 1917 | UC 44 | Kurt Tebbenjohanns | Haldon (d.) | Minesweeper | 810 | | br | |
| 7 Aug 1917 | UC 63 | Karsten von Heydebreck | Onesta | Steamer | 2,674 | | it | |
| 7 Aug 1917 | UC 71 | Reinhold Saltzwedel | Port Curtis | Steamer | 4,710 | | br | |
| 8 Aug 1917 | U 33 | Gustav Sieß | | Llanishen | Steamer | 3,837 | | br |
| 8 Aug 1917 | UB 31 | Thomas Bieber | Algerie (d.) | Steamer | 3,386 | | fr | |
| 8 Aug 1917 | UC 37 | Willy List | | Breton | Steamer | 3,739 | | fr |
| 8 Aug 1917 | UC 63 | Karsten von Heydebreck | Marie Jesus Protegez Nous | Sailing vessel | 46 | | fr | |
| 8 Aug 1917 | UC 71 | Reinhold Saltzwedel | Dunraven | Q-ship | 3,117 | | br | |
| 8 Aug 1917 | UC 77 | Reinhard von Rabenau | Berlengas | Steamer | 3,548 |  | pt | |
| 9 Aug 1917 | U 100 | Degenhart von Loë | Blagdon | Steamer | 1,996 | | br | |
| 9 Aug 1917 | U 33 | Gustav Sieß | Flora | Sailing vessel | 125 | | it | |
| 9 Aug 1917 | U 33 | Gustav Sieß | Industria | Sailing vessel | 51 | | sp | |
| 9 Aug 1917 | U 55 | Wilhelm Werner | Oakfield (d.) | Steamer | 3,618 | | br | |
| 9 Aug 1917 | U 60 | Karlgeorg Schuster | Agne | Steamer | 1,010 | | sw | |
| 9 Aug 1917 | U 60 | Karlgeorg Schuster | Export | Steamer | 2,712 |  | ru | |
| 9 Aug 1917 | UB 16 | Wilhelm Rhein | Recruit | Destroyer | 1,075 | | br | |
| 9 Aug 1917 | UC 35 | Hans Paul Korsch | Alfonso | Sailing vessel | 15 | | it | |
| 9 Aug 1917 | UC 35 | Hans Paul Korsch | S. Gerlano | Sailing vessel | 11 | | it | |
| 9 Aug 1917 | UC 53 | Kurt Albrecht | Canara (d.) | Steamer | 6,012 | | br | |
| 10 Aug 1917 | U 62 | Ernst Hashagen | Orion I | Auxiliary motor | 322 | | nw | |
| 10 Aug 1917 | U 75 | Fritz Schmolling | Solglimt | Sailing vessel | 1,037 | | nw | |
| 10 Aug 1917 | U 86 | Alfred Götze | Capella I | Steamer | 3,990 | | nw | |
| 10 Aug 1917 | k.u.k. U31 | Franz Nejebsy | Lealta | Steamer | 4,021 | | it | |
| 10 Aug 1917 | UC 53 | Kurt Albrecht | Margherita | Sailing vessel | 66 | | it | |
| 10 Aug 1917 | UC 53 | Kurt Albrecht | Tito Speri | Steamer | 3,893 | | it | |
| 10 Aug 1917 | UC 69 | Erwin Waßner | War Patrol | Steamer | 2,045 | | br | |
| 11 Aug 1917 | UB 35 | Karl Stöter | Jay | Navy Trawler | 144 | | br | |
| 11 Aug 1917 | UC 31 | Kurt Siewert | | Holar | Steamer | 548 | | da |
| 11 Aug 1917 | UC 51 | Hans Galster | Gloriosa | Fishing vessel (smack) | 23 | | br | |
| 11 Aug 1917 | UC 53 | Kurt Albrecht | Arcangelo Michele | Sailing vessel | 45 | | it | |
| 11 Aug 1917 | UC 77 | Reinhard von Rabenau | Sonnie | Steamer | 2,642 | | br | |
| 12 Aug 1917 | U 55 | Wilhelm Werner | Falkland | Steamer | 4,877 | | nw | |
| 12 Aug 1917 | U 84 | Walter Roehr | Ursus Minor | Sailing vessel | 623 | | nw | |
| 12 Aug 1917 | U 93 | Helmut Gerlach | Bestum | Steamer | 3,520 | | nw | |
| 12 Aug 1917 | U 94 | Alfred Saalwächter | Lynorta | Steamer | 3,684 | | br | |
| 12 Aug 1917 | UB 40 | Hans Howaldt | Marie Alfred | Sailing vessel | 159 | | fr | |
| 12 Aug 1917 | UB 40 | Hans Howaldt | Pauline Louisa | Sailing vessel | 172 | | fr | |
| 12 Aug 1917 | UB 48 | Wolfgang Steinbauer | Roanoke | Steamer | 4,803 | | br | |
| 12 Aug 1917 | UC 31 | Kurt Siewert | | Bogatyr | Steamer | 1,360 | | da |
| 12 Aug 1917 | UC 51 | Hans Galster | Eleazar | Fishing vessel | 111 | | br | |
| 12 Aug 1917 | UC 53 | Kurt Albrecht | Ansedonia | Sailing vessel | 270 | | it | |
| 12 Aug 1917 | UC 53 | Kurt Albrecht | Ardita Carrara | Sailing vessel | 75 | | it | |
| 12 Aug 1917 | UC 78 | Hans Kukat | Leitenant Burakov | Dispatch vessel | 350 | | ru | |
| 13 Aug 1917 | U 79 | Otto Rohrbeck | Camito (d.) | Steamer | 6,611 | | br | |
| 13 Aug 1917 | U 84 | Walter Roehr | Bergamot | Sloop | 1,290 | | br | |
| 13 Aug 1917 | U 86 | Alfred Götze | Turakina | Passenger steamer | 9,920 | | br | |
| 13 Aug 1917 | k.u.k. U28 | Zdenko Hudecek | Maston | Steamer | 3,881 | | br | |
| 13 Aug 1917 | UC 33 | Alfred Arnold | Akassa | Passenger steamer | 3,919 | | br | |
| 13 Aug 1917 | UC 53 | Kurt Albrecht | Il Nuovo Leonardo | 34 | | it | ||
| 13 Aug 1917 | UC 79 | Erich Haecker | Emilie Galline | Sailing vessel | 1,944 | | fr | |
| 14 Aug 1917 | U 71 | Walter Gude | Majorka | Sailing vessel | 1,684 | | nw | |
| 14 Aug 1917 | U 93 | Helmut Gerlach | Asti | Asti | 5,300 | | it | |
| 14 Aug 1917 | UB 40 | Hans Howaldt | Tuddal | Steamer | 3,511 | | nw | |
| 14 Aug 1917 | UB 48 | Wolfgang Steinbauer | Prize | Q-ship | 199 | | br | |
| 14 Aug 1917 | UC 22 | Erich Wiesenbach | Julita | Sailing vessel | 641 | | sp | |
| 14 Aug 1917 | UC 35 | Hans Paul Korsch | Umberto I | Armed merchant cruiser | 2,766 | | it | |
| 14 Aug 1917 | UC 42 | Hans Albrecht Müller | Jane S. | Fishing vessel | 12 | | br | |
| 14 Aug 1917 | UC 51 | Hans Galster | N. Verberckmoens | Steamer | 1,353 | | fr | |
| 14 Aug 1917 | UC 51 | Hans Galster | Wisbech | Steamer | 1,282 | | br | |
| 14 Aug 1917 | UC 63 | Karsten von Heydebreck | Costanza | steamer | 2,545 | | it | |
| 14 Aug 1917 | UC 63 | Karsten von Heydebreck | Luna (d.) | Steamer | 959 | | nw | |
| 14 Aug 1917 | UC 63 | Karsten von Heydebreck | Thames | Steamer | 403 | | br | |
| 14 Aug 1917 | UC 67 | Karl Neumann | Eugenia | Steamer | 3,029 |  | gr | |
| 15 Aug 1917 | U 33 | Gustav Sieß | Bandai Maru | Steamer | 3,227 |  | jp | |
| 15 Aug 1917 | U 62 | Ernst Hashagen | Albertha | Sailing vessel | 170 | | da | |
| 15 Aug 1917 | U 80 | Gustav Amberger | Hylas | Steamer | 4,240 | | br | |
| 15 Aug 1917 | UB 40 | Hans Howaldt | Brodstone | Steamer | 4,927 | | br | |
| 15 Aug 1917 | UC 21 | Werner von Zerboni di Sposetti | Phoebe | Steamer | 3,956 | | fr | |
| 15 Aug 1917 | UC 63 | Karsten von Heydebreck | Alice | Fishing vessel | 25 | | br | |
| 15 Aug 1917 | UC 63 | Karsten von Heydebreck | Ethel And Millie | Q-ship | 58 | | br | |
| 15 Aug 1917 | UC 63 | Karsten von Heydebreck | G & E | Q-ship | 61 | | br | |
| 16 Aug 1917 | U 53 | Hans Rose | Athenia | Steamer | 8,668 | | br | |
| 16 Aug 1917 | U 75 | Fritz Schmolling | Palatine | Steamer | 2,110 | | br | |
| 16 Aug 1917 | U 80 | Gustav Amberger | Caroline Kock | Sailing vessel | 316 | | da | |
| 16 Aug 1917 | U 94 | Alfred Saalwächter | | Svanholm | Steamer | 1,400 | | da |
| 16 Aug 1917 | k.u.k. U28 | Zdenko Hudecek | Bradford City | Q-ship | 3,683 | | br | |
| 16 Aug 1917 | UB 40 | Hans Howaldt | | Eastgate (d.) | Steamer | 4,277 | | br |
| 16 Aug 1917 | UC 16 | Georg Reimarus | | Manchester Engineer | Steamer | 4,465 | | br |
| 16 Aug 1917 | UC 72 | Ernst Voigt | Delphic | Steamer | 8,273 | | br | |
| 17 Aug 1917 | U 00 | Acor | Sailing vessel | 183 | | pt | ||
| 17 Aug 1917 | U 55 | Wilhelm Werner | Edina | Steamer | 455 | | br | |
| 17 Aug 1917 | UC 16 | Georg Reimarus | Susie | Fishing vessel (smack) | 41 | | br | |
| 17 Aug 1917 | UC 21 | Werner von Zerboni di Sposetti | Pontoporos | Steamer | 4,049 | | gr | |
| 17 Aug 1917 | UC 35 | Hans Paul Korsch | Lorenzina Aiello | Sailing vessel | 120 | | it | |
| 17 Aug 1917 | UC 35 | Hans Paul Korsch | San Rossore (d.) | Steamer | 5,601 | | it | |
| 17 Aug 1917 | UC 64 | Ernst Müller-Schwarz | Esperance | Trawler | 97 | | fr | |
| 17 Aug 1917 | UC 67 | Karl Neumann | Madeleine Iii (d.) | Q-ship | 149 | | fr | |
| 17 Aug 1917 | UC 72 | Ernst Voigt | Meuse Ii | Tanker | 5,270 | | fr | |
| 18 Aug 1917 | U 55 | Wilhelm Werner | Benjamin Stevenson | Navy Trawler | 255 | | br | |
| 18 Aug 1917 | UB 48 | Wolfgang Steinbauer | Kongsli | Steamer | 5,826 | | nw | |
| 18 Aug 1917 | UC 16 | Georg Reimarus | Ardens | Steamer | 1,274 | | br | |
| 18 Aug 1917 | UC 48 | Kurt Ramien | Dunkerquois | Steamer | 2,087 | | fr | |
| 18 Aug 1917 | UC 67 | Karl Neumann | Politania | Steamer | 3,133 | | br | |
| 19 Aug 1917 | U 87 | Rudolf Schneider | Eika Ii | Steamer | 1,268 | | nw | |
| 19 Aug 1917 | k.u.k. U40 | Johann Krsnjavi | Gartness | Steamer | 2,422 | | br | |
| 19 Aug 1917 | UB 40 | Hans Howaldt | Glocliffe | Steamer | 2,211 | | br | |
| 19 Aug 1917 | UC 17 | Ulrich Pilzecker | Brema | Steamer | 1,537 | | br | |
| 19 Aug 1917 | UC 21 | Werner von Zerboni di Sposetti | Therese Et Marie | Steamer | 1,615 | | fr | |
| 19 Aug 1917 | UC 33 | Alfred Arnold | Spectator | Steamer | 3,808 | | br | |
| 19 Aug 1917 | UC 48 | Kurt Ramien | Monksgarth | Steamer | 1,928 | | br | |
| 19 Aug 1917 | UC 48 | Kurt Ramien | Ytterøy | Steamer | 1,112 | | nw | |
| 19 Aug 1917 | UC 55 | Horst Rühle von Lilienstern | Rosario | Steamer | 1,821 | | br | |
| 19 Aug 1917 | UC 65 | Max Viebeg | General Du Temple | Dredger | 585 | | fr | |
| 19 Aug 1917 | UC 72 | Ernst Voigt | Penshurst (d.) | Q-ship | 1,191 | | br | |
| 19 Aug 1917 | UC 74 | Wilhelm Marschall | Aghios Georgios | Sailing vessel | 161 | | gr | |
| 20 Aug 1917 | Ladysmith (d.) | Navy Trawler | 254 | | br | |||
| 20 Aug 1917 | U 38 | Max Valentiner | Incemore | Steamer | 3,060 | | br | |
| 20 Aug 1917 | U 52 | Hans Walther | Bulysses | Tanker | 6,127 | | br | |
| 20 Aug 1917 | U 80 | Alfred von Glasenapp | Kirkland | Navy Trawler | 224 | | br | |
| 20 Aug 1917 | U 93 | Helmut Gerlach | Elswick Lodge | Steamer | 3,558 | | br | |
| 20 Aug 1917 | UB 10 | Fritz Gregor | Edernian | Steamer | 3,588 | | br | |
| 20 Aug 1917 | UB 38 | Wilhelm Amberger | Claverley | Steamer | 3,829 | | br | |
| 20 Aug 1917 | UB 48 | Wolfgang Steinbauer | Serra Do Marao | Trawler | 74 | | pt | |
| 20 Aug 1917 | UB 48 | Wolfgang Steinbauer | Serra Do Pilar | Trawler | 65 | | pt | |
| 20 Aug 1917 | UB 54 | Egon von Werner | Vala | Q-ship | 1,016 | | br | |
| 20 Aug 1917 | UC 59 | Herbert Lefholz | Ilja Muromets | Auxiliary minesweeper | 207 | | ru | |
| 21 Aug 1917 | Republique | Fishing vessel | 55 | | fr | |||
| 21 Aug 1917 | U 102 | Ernst Killmann | | Virginian (d.) | Armed merchant cruiser | 10,757 | | br |
| 21 Aug 1917 | U 53 | Hans Rose | | Devonian | Passenger steamer | 10,435 | | br |
| 21 Aug 1917 | U 53 | Hans Rose | Roscommon | Steamer | 8,238 | | br | |
| 21 Aug 1917 | U 87 | Rudolf Schneider | Oslo | Steamer | 2,296 | | br | |
| 21 Aug 1917 | U 93 | Helmut Gerlach | Volodia | Steamer | 5,689 | | br | |
| 21 Aug 1917 | UC 17 | Ulrich Pilzecker | Norhilda | Steamer | 1,175 | | br | |
| 21 Aug 1917 | UC 67 | Karl Neumann | Goodwood | Steamer | 3,086 | | br | |
| 21 Aug 1917 | UC 72 | Ernst Voigt | HS 4 | Tug | 121 | | br | |
| 21 Aug 1917 | UC 72 | Ernst Voigt | RB 6 | Barge | 800 | | br | |
| 22 Aug 1917 | U 53 | Hans Rose | Verdi | Steamer | 7,120 | | br | |
| 22 Aug 1917 | U 87 | Rudolf Schneider | Alexander Shukoff | Steamer | 1,652 | | da | |
| 22 Aug 1917 | UC 22 | Erich Wiesenbach | Golo Ii | Armed boarding steamer | 1,380 | | fr | |
| 22 Aug 1917 | UC 41 | Hans Förste | Sophron | Navy Trawler | 195 | | br | |
| 22 Aug 1917 | UC 47 | Paul Hundius | Gro | Steamer | 2,667 | | nw | |
| 23 Aug 1917 | U 53 | Hans Rose | Boniface | Steamer | 3,799 | | br | |
| 23 Aug 1917 | U 93 | Helmut Gerlach | Carl F. Cressy | Sailing vessel | 898 | | am | |
| 23 Aug 1917 | k.u.k. U14 | Georg Ritter von Trapp | Constance | Steamer | 2,469 | | fr | |
| 23 Aug 1917 | UB 48 | Wolfgang Steinbauer | Winlaton | Steamer | 3,270 | | br | |
| 23 Aug 1917 | UC 47 | Paul Hundius | Peer Gynt | Steamer | 1,144 | | nw | |
| 23 Aug 1917 | UC 47 | Paul Hundius | Veghtstroom | Steamer | 1,353 | | br | |
| 23 Aug 1917 | UC 67 | Karl Neumann | Fratelli Danieli | Sailing vessel | 94 | | fr | |
| 24 Aug 1917 | U 62 | Ernst Hashagen | Henriette | Steamer | 2,005 | | fr | |
| 24 Aug 1917 | k.u.k. U14 | Georg Ritter von Trapp | Kilwinning | Steamer | 3,071 | | br | |
| 24 Aug 1917 | UB 21 | Franz Walther | Springhill | Steamer | 1,507 | | br | |
| 24 Aug 1917 | UC 74 | Wilhelm Marschall | Parana | Passenger steamer | 6,248 | | fr | |
| 25 Aug 1917 | U 70 | Otto Wünsche | | Malda | Passenger steamer | 7,896 | | br |
| 25 Aug 1917 | U 80 | Gustav Amberger | Junona | Steamer | 3,462 | | ru | |
| 25 Aug 1917 | U 93 | Helmut Gerlach | Heatherside | Steamer | 2,767 | | br | |
| 25 Aug 1917 | U 93 | Helmut Gerlach | Ovar | Steamer | 1,650 | | pt | |
| 25 Aug 1917 | UB 54 | Egon von Werner | Frigga | Steamer | 1,046 | | nw | |
| 25 Aug 1917 | UB 61 | Theodor Schultz | Sycamore | Steamer | 6,550 | | br | |
| 25 Aug 1917 | UC 49 | Karl Petri | Nascent | Steamer | 4,969 | | br | |
| 25 Aug 1917 | UC 65 | Max Viebeg | Garm | Steamer | 725 | | nw | |
| 25 Aug 1917 | UC 65 | Max Viebeg | | Nerma | Steamer | 689 | | da |
| 25 Aug 1917 | UC 75 | Johannes Lohs | Cymrian | Steamer | 1,014 | | br | |
| 26 Aug 1917 | U 53 | Hans Rose | Durango | Steamer | 3,008 | | br | |
| 26 Aug 1917 | U 53 | Hans Rose | Kenmore | Steamer | 3,919 | | br | |
| 26 Aug 1917 | U 93 | Helmut Gerlach | Marmion | Steamer | 4,066 | | br | |
| 26 Aug 1917 | U 93 | Helmut Gerlach | Minas Queen | Sailing vessel | 492 |  | ca | |
| 26 Aug 1917 | k.u.k. U14 | Georg Ritter von Trapp | Titian | Steamer | 4,170 | | br | |
| 26 Aug 1917 | UB 32 | Benno von Ditfurth | Feltre | Steamer | 6,455 | | it | |
| 26 Aug 1917 | UB 38 | Wilhelm Amberger | W. H. Dwyer | Steamer | 1,770 | | ca | |
| 26 Aug 1917 | UB 61 | Theodor Schultz | Assyria | Steamer | 6,370 | | br | |
| 26 Aug 1917 | UC 20 | Hans Adalbert von der Lühe | Maurizio P. | steamer | 558 | | it | |
| 26 Aug 1917 | UC 35 | Hans Paul Korsch | Maria Del Carmine | Sailing vessel | 108 | | it | |
| 26 Aug 1917 | UC 47 | Paul Hundius | Eirini | Steamer | 2,452 | | gr | |
| 26 Aug 1917 | UC 47 | Paul Hundius | Seresia (d.) | Steamer | 2,342 |  | be | |
| 26 Aug 1917 | UC 62 | Max Schmitz | Chacma | Sailing vessel | 608 | | nw | |
| 27 Aug 1917 | U 87 | Rudolf Schneider | | Anna | Steamer | 1,211 | | da |
| 27 Aug 1917 | U 87 | Rudolf Schneider | | Aurora | Steamer | 768 | | da |
| 27 Aug 1917 | UB 48 | Wolfgang Steinbauer | Hathor | Steamer | 3,823 | | br | |
| 28 Aug 1917 | Evangelistria | Sailing vessel | unknown | | gr | |||
| 28 Aug 1917 | U 28 | Georg Schmidt | Hidalgo | Steamer | 4,271 | | br | |
| 28 Aug 1917 | U 28 | Georg Schmidt | Marselieza | Steamer | 3,568 | | ru | |
| 28 Aug 1917 | U 28 | Georg Schmidt | Whitecourt | Steamer | 3,680 | | br | |
| 28 Aug 1917 | k.u.k. U14 | Georg Ritter von Trapp | Nairn | Steamer | 3,627 | | br | |
| 28 Aug 1917 | UC 38 | Hans Hermann Wendlandt | Pasqualino Carmela | Sailing vessel | 61 | | it | |
| 28 Aug 1917 | UC 38 | Hans Hermann Wendlandt | Scilla | Ferry | 397 | | it | |
| 28 Aug 1917 | UC 73 | Kurt Schapler | | Saint Joseph (d.) | Steamer | 5,796 | | fr |
| 29 Aug 1917 | U 93 | Helmut Gerlach | Treloske | Steamer | 3,071 | | br | |
| 29 Aug 1917 | k.u.k. U14 | Georg Ritter von Trapp | | Milazzo | Steamer | 11,477 | | it |
| 29 Aug 1917 | k.u.k. U40 | Johann Krsnjavi | Clifftower (d.) | Steamer | 3,509 | | br | |
| 29 Aug 1917 | UC 38 | Hans Hermann Wendlandt | Vronwen | Steamer | 5,714 | | br | |
| 29 Aug 1917 | UC 65 | Max Viebeg | Laura C. Anderson | Sailing vessel | 960 | | am | |
| 29 Aug 1917 | UC 75 | Johannes Lohs | Cooroy | Sailing vessel | 2,470 | | br | |
| 29 Aug 1917 | UC 75 | Johannes Lohs | Lynburn | Steamer | 587 | | br | |
| 30 Aug 1917 | U 62 | Ernst Hashagen | Eastern Prince | Steamer | 2,885 | | br | |
| 30 Aug 1917 | U 62 | Ernst Hashagen | Grelhame | Steamer | 3,740 | | br | |
| 30 Aug 1917 | U 62 | Ernst Hashagen | Noya | Steamer | 4,282 | | br | |
| 30 Aug 1917 | UC 74 | Wilhelm Marschall | Athinai | Steamer | 988 | | gr | |
| 31 Aug 1917 | U 19 | Johannes Spieß | Miniota | Steamer | 6,422 | | br | |
| 31 Aug 1917 | U 48 | Karl Edeling | Westbury | Steamer | 3,097 | | br | |
| 31 Aug 1917 | U 71 | Walter Gude | Taurus | Taurus | 128 | | br | |
| 31 Aug 1917 | UB 30 | Wilhelm Rhein | Vernon | Steamer | 982 | | br | |
| 31 Aug 1917 | UC 21 | Reinhold Saltzwedel | Marques De Mudela | Steamer | 1,930 | | sp | |
| 31 Aug 1917 | UC 65 | Max Viebeg | Erissos (d.) | Steamer | 2,885 | | gr | |
| 31 Aug 1917 | UC 74 | Wilhelm Marschall | Eleni | steamer | 679 | | gr | |
| 594,014 | ||||||||
| 221 ships sunk (523,848 tons) and 22 ships damaged (70,166 tons).
| ||||||||