October 1918
This is the full listing of all ships hit during October 1918. 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. |
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| 1 Oct 1918 | U 139 | Lothar von Arnauld de la Perière | | Bylands | 3,309 |  | br |
| 1 Oct 1918 | U 139 | Lothar von Arnauld de la Perière | | Manin | 2,691 |  | it |
| 1 Oct 1918 | U 139 | Lothar von Arnauld de la Perière | | Perth (d.) | 2,502 |  | br |
| 1 Oct 1918 | U 55 | Alexander Weiß | | Montfort | 6,578 |  | br |
| 1 Oct 1918 | U 91 | Alfred von Glasenapp | | Therese et Marthe | 32 |  | fr |
| 1 Oct 1918 | UB 112 | Wilhelm Rhein | | Aldebaran | 1,683 |  | sw |
| 1 Oct 1918 | UB 112 | Wilhelm Rhein | | Gjertrud | 593 |  | nw |
| 1 Oct 1918 | UB 49 | Adolf Ehrensberger | | Francoli | 1,241 |  | sp |
| 1 Oct 1918 | UC 53 | Erich Gerth | | Giuseppino M. | 49 |  | it |
| 1 Oct 1918 | UC 53 | Erich Gerth | | San Giuseppe A. | 56 |  | it |
| 2 Oct 1918 | U 118 | Herbert Stohwasser | | Arca | 4,839 |  | br |
| 2 Oct 1918 | U 139 | Lothar von Arnauld de la Perière | | Rio Cavado | 301 |  | pt |
| 2 Oct 1918 | U 55 | Alexander Weiß | | Keltier | 2,360 |  | be |
| 2 Oct 1918 | U 91 | Alfred von Glasenapp | | Ave Maris Stella | 22 |  | fr |
| 2 Oct 1918 | U 91 | Alfred von Glasenapp | | Maia | 185 |  | fr |
| 2 Oct 1918 | U 91 | Alfred von Glasenapp | | Marie Emmanuel | 32 |  | fr |
| 2 Oct 1918 | k.u.k. U31 | Hermann Rigele | | Weymouth (d.) | 5,250 |  | br |
| 2 Oct 1918 | UB 112 | Wilhelm Rhein | | Bamse | 1,001 |  | br |
| 2 Oct 1918 | UB 112 | Wilhelm Rhein | | Poljames | 856 |  | br |
| 3 Oct 1918 | U 155 | Ferdinand Studt | | Alberto Treves | 3,838 |  | it |
| 3 Oct 1918 | UB 105 | Rudolf Petersen | | Ariel | 3,428 |  | br |
| 3 Oct 1918 | UB 105 | Rudolf Petersen | | Saint Luc | 2,456 |  | fr |
| 3 Oct 1918 | UB 112 | Wilhelm Rhein | | A.E. Mc Kinstry (d.) | 1,960 |  | ca |
| 3 Oct 1918 | UB 112 | Wilhelm Rhein | | Atlantis | 1,171 |  | nw |
| 3 Oct 1918 | UB 112 | Wilhelm Rhein | | Westwood | 1,968 |  | br |
| 3 Oct 1918 | UB 90 | Gottfried von Mayer | | Eupion | 3,575 |  | br |
| 3 Oct 1918 | UC 23 | Hans Georg Lübbe | | Blasios | 181 |  | gr |
| 3 Oct 1918 | UC 23 | Hans Georg Lübbe | | Evangelistria (d.) | 35 |  | gr |
| 4 Oct 1918 | | | | Nanette | 40 |  | fr |
| 4 Oct 1918 | U 117 | Otto Dröscher | | San Saba | 2,458 |  | am |
| 4 Oct 1918 | U 155 | Ferdinand Studt | | Industrial | 330 |  | br |
| 4 Oct 1918 | U 55 | Alexander Weiß | | Uranus | 350 |  | ru |
| 4 Oct 1918 | U 91 | Alfred von Glasenapp | | Mercedes | 2,164 |  | sp |
| 4 Oct 1918 | UB 112 | Wilhelm Rhein | | Nanna | 1,125 |  | nw |
| 4 Oct 1918 | UB 68 | Karl Dönitz | | Oopack | 3,883 |  | br |
| 4 Oct 1918 | UB 91 | Wolf Hans Hertwig | | Hirano Maru | 7,936 |  | jp |
| 5 Oct 1918 | U 91 | Alfred von Glasenapp | | Erindring | 1,229 |  | br |
| 5 Oct 1918 | U 91 | Alfred von Glasenapp | | Heathpark | 2,205 |  | br |
| 5 Oct 1918 | UC 23 | Hans Georg Lübbe | | Hagios Marcos | 45 |  | gr |
| 5 Oct 1918 | UC 23 | Hans Georg Lübbe | | Maria | 2,159 |  | sp |
| 5 Oct 1918 | UC 23 | Hans Georg Lübbe | | Marigo | 48 |  | gr |
| 5 Oct 1918 | UC 23 | Hans Georg Lübbe | | Reventazon | 4,050 |  | br |
| 5 Oct 1918 | UC 53 | Kurt Albrecht | | Rosa (d.) | 908 |  | it |
| 7 Oct 1918 | UB 105 | Rudolf Petersen | | Madeira | 4,792 |  | pt |
| 7 Oct 1918 | UB 105 | Rudolf Petersen | | Saint Barnabe | 5,184 |  | fr |
| 8 Oct 1918 | U 157 | Ortwin Rave | | Hawanee | 124 |  | br |
| 8 Oct 1918 | U 91 | Alfred von Glasenapp | | Cazengo | 3,009 |  | pt |
| 8 Oct 1918 | UC 17 | Nikolaus von Lyncker | | Thalia | 1,308 |  | br |
| 9 Oct 1918 | U 91 | Alfred von Glasenapp | | Pierre | 354 |  | fr |
| 10 Oct 1918 | | | | Sempre Avanti | 33 |  | it |
| 10 Oct 1918 | U 55 | Alexander Weiß | | Andre | 160 |  | fr |
| 10 Oct 1918 | UB 123 | Robert Ramm | | Leinster | 2,646 |  | br |
| 11 Oct 1918 | U 91 | Alfred von Glasenapp | | Luksefjell | 2,007 |  | nw |
| 11 Oct 1918 | UB 126 | Waldemar von Fischer | | Maja | 1,452 |  | sw |
| 12 Oct 1918 | U 155 | Ferdinand Studt | | Amphion (d.) | 7,409 |  | am |
| 12 Oct 1918 | UB 105 | Rudolf Petersen | | Tripoli Ii | 958 |  | it |
| 12 Oct 1918 | UB 126 | Waldemar von Fischer | | Laila | 1,626 |  | nw |
| 13 Oct 1918 | | | | Hamidieh | 85 |  | br |
| 13 Oct 1918 | | | | Volette | 185 |  | gr |
| 13 Oct 1918 | UC 23 | Hans Georg Lübbe | | Aghion Spiridon | 21 |  | gr |
| 13 Oct 1918 | UC 23 | Hans Georg Lübbe | | Aghios Georgios | 130 |  | gr |
| 13 Oct 1918 | UC 23 | Hans Georg Lübbe | | Biolleta | 99 |  | gr |
| 13 Oct 1918 | UC 23 | Hans Georg Lübbe | | Evangelistria | 41 |  | gr |
| 13 Oct 1918 | UC 23 | Hans Georg Lübbe | | Evangelistrios | 121 |  | gr |
| 13 Oct 1918 | UC 23 | Hans Georg Lübbe | | Glaros | 43 |  | gr |
| 13 Oct 1918 | UC 23 | Hans Georg Lübbe | | Iphigenia | 75 |  | gr |
| 13 Oct 1918 | UC 23 | Hans Georg Lübbe | | Panaghia | 26 |  | gr |
| 13 Oct 1918 | UC 23 | Hans Georg Lübbe | | Urania | 23 |  | gr |
| 14 Oct 1918 | U 139 | Lothar von Arnauld de la Perière | | Augusto De Castilho | 487 |  | pt |
| 14 Oct 1918 | U 152 | Adolf Franz | | Stifinder | 1,745 |  | nw |
| 14 Oct 1918 | U 90 | Heinrich Jeß | | Dundalk | 794 |  | br |
| 14 Oct 1918 | U 91 | Alfred von Glasenapp | | Bayard | 55 |  | fr |
| 15 Oct 1918 | U 152 | Adolf Franz | | Messina (d.) | 4,271 |  | br |
| 15 Oct 1918 | U 43 | Johannes Kirchner | | Bretagne | 316 |  | fr |
| 15 Oct 1918 | UC 23 | Hans Georg Lübbe | | Evangelistria | 24 |  | gr |
| 15 Oct 1918 | UC 23 | Hans Georg Lübbe | | Georgios | 29 |  | gr |
| 15 Oct 1918 | UC 23 | Hans Georg Lübbe | | Maria | 43 |  | gr |
| 16 Oct 1918 | | | | Caloria (d.) | 4,095 |  | am |
| 16 Oct 1918 | U 63 | Kurt Hartwig | | War Council | 5,875 |  | br |
| 16 Oct 1918 | U 90 | Heinrich Jeß | | Pentwyn | 3,587 |  | br |
| 17 Oct 1918 | U 155 | Ferdinand Studt | | Lucia | 6,744 |  | am |
| 17 Oct 1918 | UB 92 | Johannes Paul Müller | | Bonvilston | 2,865 |  | br |
| 18 Oct 1918 | U 122 | Alfred Korte | | Njordur | 278 |  | is |
| 18 Oct 1918 | UB 48 | Wolfgang Steinbauer | | Voltaire (d.) | 18,400 |  | fr |
| 18 Oct 1918 | UB 92 | Johannes Paul Müller | | Industry | 1,460 |  | br |
| 18 Oct 1918 | UB 94 | Waldemar Haumann | | Hunsdon | 2,899 |  | br |
| 19 Oct 1918 | U 43 | Johannes Kirchner | | Aida | 93 |  | pt |
| 19 Oct 1918 | U 73 | Carl Bünte | | Almerian | 3,030 |  | br |
| 20 Oct 1918 | UB 92 | Johannes Paul Müller | | Emily Millington | 111 |  | br |
| 21 Oct 1918 | UB 94 | Waldemar Haumann | | Saint Barchan | 362 |  | br |
| 23 Oct 1918 | UC 52 | Carl Heinrich Saß | | Ischia (d.) | 4,050 |  | it |
| 23 Oct 1918 | UC 74 | Hans Schüler | | Aghios Gerasimos | 85 |  | gr |
| 27 Oct 1918 | U 117 | Otto Dröscher | | Chaparra | 1,510 |  | cu |
| 27 Oct 1918 | UB 12 | Ernst Schöller | | Calceolaria | 92 |  | br |
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| 176,333 | | | 84 ships sunk (127,453 tons) and 10 ships damaged (48,880 tons). Legend (d.) means the ship was damaged.
We have a picture of this vessel.
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This map shows where Allied ships were hit during October 1918.

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