SM U-43 was one of 329 submarines serving in the Imperial German Navy in World War I. She engaged in commerce warfare in the First Battle of the Atlantic, performing 11 patrols from 1915–1918.
U-43 was surrendered to the Allies at Harwich on 20 November 1918 in accordance with the requirements of the Armistice with Germany. She was sold (without engines, removed at Chatham) by the British Admiralty to George Cohen on 3 March 1919 for £2,400, and was broken up at Swansea from May 1919 and 1922.[1]
| Date | Name | Nationality | Tonnage[2] | Fate[3] | |
|---|---|---|---|---|---|
| 21 March 1916 | Aranmore |  United Kingdom | 1,050 | Sunk | |
| 24 March 1916 | Englishman | United Kingdom | 5,257 | Sunk | |
| 26 September 1916 | Dania |  Norway | 862 | Sunk | |
| 26 September 1916 | Knut Hilde | Norway | 1,632 | Sunk | |
| 28 September 1916 | Rolf Jarl | Norway | 1,265 | Sunk | |
| 29 September 1916 | Knut Jarl | Norway | 1,070 | Sunk | |
| 29 September 1916 | Nesjar | Norway | 1,609 | Sunk | |
| 30 September 1916 | Fancy | Norway | 1,612 | Sunk | |
| 3 October 1916 | J. Y. Short | United Kingdom | 2,193 | Sunk | |
| 3 October 1916 | Tourgai | 4,281 | Sunk | ||
| 10 October 1916 | Gardepee | United Kingdom | 1,633 | Sunk | |
| 11 October 1916 | Bistritza |  Romania | 3,688 | Sunk | |
| 17 October 1916 | Edam | Norway | 2,381 | Sunk | |
| 22 January 1917 | Duc D’aumale |  France | 2,189 | Sunk | |
| 23 January 1917 | Jevington | United Kingdom | 2,747 | Sunk | |
| 23 January 1917 | Donstad | Norway | 699 | Sunk | |
| 28 January 1917 | Foz Do Douro |  Portugal | 1,677 | Sunk | |
| 28 January 1917 | Fulton | Norway | 1,034 | Sunk | |
| 31 January 1917 | Rigel | Norway | 2,671 | Sunk | |
| 3 February 1917 | Hollinside | United Kingdom | 2,862 | Sunk | |
| 3 February 1917 | Songelv | Norway | 2,064 | Sunk | |
| 3 February 1917 | Wasdale | Norway | 1,856 | Sunk | |
| 4 February 1917 | Turino | United Kingdom | 4,241 | Sunk | |
| 9 February 1917 | Famiglia | 2,942 | Sunk | ||
| 16 April 1917 | Anne |  Denmark | 240 | Sunk | |
| 16 April 1917 | Endymion | 1,345 | Sunk | ||
| 16 April 1917 | Towergate | United Kingdom | 3,697 | Sunk | |
| 20 April 1917 | August | 1,596 | Sunk | ||
| 20 April 1917 | San Hilario | United Kingdom | 10,157 | Sunk | |
| 22 April 1917 | Woodward Abrahams |  United States | 744 | Sunk | |
| 24 April 1917 | Cordelia |  Sweden | 613 | Sunk | |
| 25 April 1917 | Abosso | United Kingdom | 7,782 | Sunk | |
| 26 April 1917 | Ehrglis | 238 | Sunk | ||
| 26 April 1917 | Hektoria | Norway | 5,002 | Sunk | |
| 3 May 1917 | Emma |  Netherlands | 183 | Captured as prize | |
| 3 May 1917 | Concordia | Netherlands | 173 | Captured as prize | |
| 4 June 1917 | Juno | Norway | 1,169 | Sunk | |
| 10 June 1917 | Haulwen | United Kingdom | 4,032 | Sunk | |
| 11 June 1917 | Teviotdale | United Kingdom | 3,847 | Sunk | |
| 19 June 1917 | Tunisie | France | 3,246 | Sunk | |
| 18 September 1917 | HMS Glenfoyle | 1,680 | Sunk | ||
| 28 December 1917 | Magellan | France | 6,265 | Sunk | |
| 27 July 1918 | Subadar | United Kingdom | 4,911 | Sunk | |
| 3 August 1918 | Maceio |  Brazil | 3,739 | Sunk | |
| 3 August 1918 | Vouga | Portugal | 96 | Sunk | |
| 15 October 1918 | Bretagne | France | 316 | Sunk | |
| 19 October 1918 | Aida | Portugal | 93 | Sunk |