The list of shipwrecks in September 1917 includes ships sunk, foundered, grounded, or otherwise lost during September 1917.

1 September

List of shipwrecks: 1 September 1917
ShipStateDescription
SMS Admiral Von Schroder  Imperial German Navy World War I: The Greta-class Vorpostenboot was beached after being damaged by Royal Navy destroyers off Blaavandshuk.
Akaroa  Norway World War I: The barque was sunk in the English Channel 70 nautical miles (130 km) west of the Casquets, Channel Islands by SM U-19 ( Imperial German Navy). Her crew survived.[1]
Amiral Olry  France World War I: The cargo ship was torpedoed and sunk in the Mediterranean Sea 38 nautical miles (70 km) north west of Cape Sidero, Crete, Greece (35°40′N 25°47′E / 35.667°N 25.783°E / 35.667; 25.783) by SM UC-74 ( Imperial German Navy).[2]
SMS Crefeld  Imperial German Navy The Vorpostenboot was lost on this date.
Dront  Russia World War I: The cargo ship was sunk in the Barents Sea 110 nautical miles (200 km) north west by north of the North Cape, Norway by SM U-28 ( Imperial German Navy).[3]
Erato  United Kingdom World War I: The cargo ship struck a mine and sank in the English Channel 4 nautical miles (7.4 km) south east of The Lizard, Cornwall. Her crew survived.[4]
Fingal  United Kingdom The cargo ship foundered on this date.[5]
SMS Heinrich Bruns  Imperial German Navy The Vorpostenboot was lost on this date.
Peronne  France World War I: The cargo ship was sunk in the English Channel 5 nautical miles (9.3 km) south east of Berry Head, Devon, United Kingdom by SM UC-65 ( Imperial German Navy). Her crew survived.[6]
SMS Rinteln  Imperial German Navy World War I: The Hameln-class Vorpostenboot was beached after being damaged by Royal Navy destroyers off Lyngvig.
Tarapaca  France World War I: The four-masted full-rigged ship was scuttled in the Bay of Biscay 65 nautical miles (120 km) west of the La Coubre Lighthouse, Charente-Maritime (45°55′N 3°12′W / 45.917°N 3.200°W / 45.917; -3.200) by SM U-52 ( Imperial German Navy).[7]

2 September

List of shipwrecks: 2 September 1917
ShipStateDescription
Caracas  Norway World War I: The auxiliary sailing vessel was scuttled in the Atlantic Ocean 130 nautical miles (240 km) north west of Cape Finisterre, Spain (46°00′N 11°04′W / 46.000°N 11.067°W / 46.000; -11.067) by SM UB-49 ( Imperial German Navy). Her crew survived.[8]
HMS Dundee  Royal Navy World War I: The armed boarding steamer was torpedoed and damaged in the Atlantic Ocean south west of the Isles of Scilly (48°50′N 9°20′W / 48.833°N 9.333°W / 48.833; -9.333) by SM UC-49 ( Imperial German Navy) with the loss of nine lives. She sank the next day.[9]
Ker Durand  France World War I: The fishing vessel was scuttled in the Atlantic Ocean 70 nautical miles (130 km) west of Ar Men, Finistère by SM UC-69 ( Imperial German Navy). Her crew survived.[10]
Olive Branch  United Kingdom World War I: The cargo ship was shelled and sunk in the Barents Sea 85 nautical miles (157 km) north by east of the North Cape, Norway (72°34′N 27°56′E / 72.567°N 27.933°E / 72.567; 27.933) by SM U-28 ( Imperial German Navy) with the loss of a crew member.[11]
Rytonhall  United Kingdom World War I: The cargo ship was torpedoed and sunk in the Atlantic Ocean 105 nautical miles (194 km) west of Ouessant, Finistère (47°45′N 7°28′W / 47.750°N 7.467°W / 47.750; -7.467) by SM UC-69 ( Imperial German Navy). Her crew survived.[12][13]
SM U-28  Imperial German Navy World War I: The Type U 27 submarine was sunk in the Barents Sea 85 nautical miles (157 km) north by east of the North Cape (72°34′N 27°56′E / 72.567°N 27.933°E / 72.567; 27.933) by the explosion of the cargo of munitions aboard Olive Branch, ( United Kingdom) which it had attacked. All 39 crew were killed.
Wentworth  United Kingdom World War I: The cargo ship was torpedoed and sunk in the Bay of Biscay 36 nautical miles (67 km) (47°00′N 3°23′W / 47.000°N 3.383°W / 47.000; -3.383) by SM U-52 ( Imperial German Navy) with the loss of a crew member. Three survivors were taken as prisoners of war.[14]

3 September

List of shipwrecks: 3 September 1917
ShipStateDescription
Agios Andreas Greece Greece World War I: The sailing vessel was sunk in the Aegean Sea by SM UC-74 ( Imperial German Navy).[15]
Alentejo  Portugal The cargo ship caught fire, exploded and sank at Marseille, Bouches-du-Rhône, France.[16]
HMS Begonia  Royal Navy World War I: The Azalea-class sloop departed on patrol in the Atlantic Ocean. She was subsequently sunk by enemy action with the loss of 94 crew.[17]
HMT Italy  Royal Navy The naval trawler was lost on this date.[18]
La Negra  United Kingdom World War I: The cargo ship was torpedoed and sunk in the English Channel 50 nautical miles (93 km) south south west of Start Point, Devon (49°29′N 3°53′W / 49.483°N 3.883°W / 49.483; -3.883) by SM UC-50 ( Imperial German Navy) with the loss of four of her crew.[19]
Majoren  Norway World War I: The cargo ship was sunk in the Atlantic Ocean north west of Bloody Foreland, County Donegal, United Kingdom (55°14′N 8°56′W / 55.233°N 8.933°W / 55.233; -8.933) by SM U-95 ( Imperial German Navy). Her crew survived.[20]
Ragnhild  United Kingdom World War I: The cargo ship was torpedoed and sunk in the North Sea 14 nautical miles (26 km) south by east of Flamborough Head, East Riding of Yorkshire by SM UB-30 ( Imperial German Navy) with the loss of fifteen crew.[21]
Treverbyn  United Kingdom World War I: The cargo ship struck a mine and sank in the Atlantic Ocean 2 nautical miles (3.7 km) east south east of the Ushinish Lighthouse, South Uist, Outer Hebrides with the loss of 27 crew.[22]
Van Allens-Broughton  United States The five-masted schooner was abandoned in the Atlantic Ocean. She sank the next day.[23]

4 September

List of shipwrecks: 4 September 1917
ShipStateDescription
Bishopton  United Kingdom World War I: The cargo ship was torpedoed and sunk in the English Channel 30 nautical miles (56 km) south by east of St. Catherine's Point, Isle of Wight (50°08′N 0°57′W / 50.133°N 0.950°W / 50.133; -0.950) by SM UC-16 ( Imperial German Navy) with the loss of two of her crew.[13][24]
Peerless  United Kingdom World War I: The cargo ship was torpedoed and sunk in the Atlantic Ocean south west of the Bishop Rock, Isles of Scilly (49°11′N 7°16′W / 49.183°N 7.267°W / 49.183; -7.267) by SM U-52 ( Imperial German Navy) with the loss of five crew. Three survivors were taken as prisoners of war.[25]
Sadi Carnot  France World War I: The three-masted schooner was sunk in the Atlantic Ocean 42 nautical miles (78 km) south south west of the Isles of Scilly by SM UC-69 ( Imperial German Navy). Her crew were rescued by HMS Landrail ( Royal Navy) and Montana ( United States).[26]
Theodora Greece Greece World War I: The cargo ship was sunk in the Atlantic Ocean off Santa Uxía de Ribeira, A Coruña, Spain (42°32′N 9°25′W / 42.533°N 9.417°W / 42.533; -9.417) by SM UB-49 ( Imperial German Navy). Her crew survived.[27]

5 September

List of shipwrecks: 5 September 1917
ShipStateDescription
Alesia  France World War I: The passenger ship was torpedoed and damaged in the Atlantic Ocean 40 nautical miles (74 km) north west of Ouessant, Finistère by SM UC-69 ( Imperial German Navy). She was sunk the next day by SM UC-50 ( Imperial German Navy).[28]
Echunga  United Kingdom World War I: The tanker was torpedoed and sunk in the Atlantic Ocean 40 nautical miles (74 km) north east of Ouessant by SM U-52 ( Imperial German Navy) with the loss of nine crew.[13][29]
Emma  United Kingdom World War I: The sailing vessel was shelled and sunk in the English Channel 8 nautical miles (15 km) north of Sept-Îles, Finistère, France by SM UC-50 ( Imperial German Navy).[13][30]
HMT Eros  Royal Navy World War I: The naval trawler struck a mine and sank in the North Sea off Orfordness, Suffolk with the loss of two of her crew.[31]
Florence Muspratt  United Kingdom World War I: The schooner was shelled and sunk in the English Channel 10 nautical miles (19 km) north of Sept-Îles by SM UC-50 ( Imperial German Navy). Her crew survived.[13][32]
Frances  United Kingdom World War I: The ketch was scuttled in the English Channel 8 nautical miles (15 km) north by west of Sept-Îles by SM UC-50 ( Imperial German Navy). Her crew survived.[13][33]
Glynn  United Kingdom World War I: The schooner was shelled and sunk in the English Channel 32 nautical miles (59 km) north west of the Les Hanois Lighthouse, Guernsey, Channel Islands by SM UC-42 ( Imperial German Navy). Her crew survived.[13][34]
Industry  United Kingdom World War I: The schooner was shelled and sunk in the English Chaanel 20 nautical miles (37 km) north west of the Les Hanois Lighthouse by SM UC-42 ( Imperial German Navy). Her crew survived.[13][35]
Jeannot  Belgium World War I: The fishing vessel was scuttled in the North Sea off Lowestoft, Suffolk by SM UB-10 ( Imperial German Navy). Her crew survived.[36]
Margaret  United Kingdom World War I: The trawler struck a mine and sank in the North Sea off Wick, Caithness with the loss of five of her crew.[37]
Proletaire  France World War I: The sailing vessel was scuttled in the Mediterranean Sea 59 nautical miles (109 km) off Cape Bougarouni, Algeria (37°45′N 5°45′E / 37.750°N 5.750°E / 37.750; 5.750) by SM U-63 ( Imperial German Navy).[38]
SMS Senator Holthusen  Imperial German Navy The Vorpostenboot was lost on this date.
Theodor  United Kingdom World War I: The sailing vessel was scuttled in the English Channel 13 nautical miles (24 km) north by west of Sept-Îles by SM UC-50 ( Imperial German Navy). Her crew survived.[39]
SM U-88  Imperial German Navy World War I: The Type U 87 submarine struck a mine and sank in the North Sea off Terschelling, Friesland, Netherlands with the loss of all 43 crew.
Unity  United Kingdom World War I: The fishing smack was scuttled in the North Sea 8 nautical miles (15 km) east of the Cross Sand Lightship ( United Kingdom) by SM UB-10 ( Imperial German Navy). Her crew survived.[37][40]

6 September

List of shipwrecks: 6 September 1917
ShipStateDescription
Agios Georgios Greece Greece World War I: The barque was sunk in the Ionian Sea (36°15′N 21°44′E / 36.250°N 21.733°E / 36.250; 21.733) by SM UC-74 ( Imperial German Navy).[41]
Elisabethville  Belgium World War I: The passenger ship was torpedoed and sunk in the Bay of Biscay (47°05′N 3°04′W / 47.083°N 3.067°W / 47.083; -3.067 (SS Elisabethville)) by UC-71 ( Imperial German Navy) with the loss of fourteen of the 313 people on board.[42]
HMS Fiona  Royal Navy The armed boarding steamer ran aground on the Pentland Skerries. She was towed off but broke in two.[43]
Hammar II  Sweden World War I: The cargo ship was scuttled in the North Sea by SM UB-62 ( Imperial German Navy). Her eleven crew took to the lifeboats but were not rescued.[44]
HMT Helgian  Royal Navy World War I: The naval trawler struck a mine and sank in the Gulf of Ruphani with the loss of ten of her twelve crew.[45]
Moina  France World War I: The auxiliary sailing vessel was scuttled in the Atlantic Ocean west of Gibraltar (36°32′N 7°15′W / 36.533°N 7.250°W / 36.533; -7.250) by SM UB-49 ( Imperial German Navy). Her crew survived.[46]
Rosary  United Kingdom World War I: The fishing smack was scuttled in the North Sea off the coast of Norfolk by SM UB-10 ( Imperial German Navy). Her crew survived.[47]
Thisbe  France World War I: The cargo ship was torpedoed and sunk in the Atlantic Ocean 6 nautical miles (11 km) west of The Lizard, Cornwall, United Kingdom (49°57′N 5°21′W / 49.950°N 5.350°W / 49.950; -5.350) by SM UB-35 ( Imperial German Navy).[48]
Tuskar  United Kingdom World War I: The cargo ship struck a mine and sank in the Atlantic Ocean 3 nautical miles (5.6 km) off Eagle Island, County Mayo with the loss of ten of her crew.[49]
Ville de Strasbourg  France World War I: The cargo ship was sunk in the Aegean Sea off Cape Spati, Cythera, Greece (36°24′N 22°54′E / 36.400°N 22.900°E / 36.400; 22.900) by SM UC-74 ( Imperial German Navy). Her crew survived.[50]

7 September

List of shipwrecks: 7 September 1917
ShipStateDescription
Antonio Ferro  Russia The tug foundered on this date with the loss of seven of her crew.[51]
HMT By George  Royal Navy World War I: The naval trawler struck a mine and sank in the Gulf of Ruphani (40°38′N 24°54′E / 40.633°N 24.900°E / 40.633; 24.900) with the loss of two of her crew.[52]
Casa Blanca  Portugal World War I: The sailing vessel was sunk in the Atlantic Ocean by SM UB-49 ( Imperial German Navy).[53]
Clan Ferguson  United Kingdom World War I: The collier was torpedoed and sunk in the Atlantic Ocean 15 nautical miles (28 km) off Cape Spartel, Morocco (35°50′N 6°10′W / 35.833°N 6.167°W / 35.833; -6.167) by SM UB-49 ( Imperial German Navy) with the loss of ten crew.[13][54][18]
Grelfryda  United Kingdom World War I: The cargo ship was torpedoed and damaged in the North Sea 4 nautical miles (7.4 km) south west by west of Flamborough Head, Yorkshire by SM UB-34 ( Imperial German Navy). She was beached, but was later refloated, repaired and returned to service.[55]
Haakon VII  Norway World War I: The cargo ship was torpedoed and sunk in the Atlantic Ocean 3 nautical miles (5.6 km) east south east of Land's End, Cornwall, United Kingdom by SM UB-35 ( Imperial German Navy) with the loss of three of her crew.[56]
Hinemoa  United Kingdom World War I: The four-masted barque was shelled and sunk in the Atlantic Ocean 35 nautical miles (65 km) west south west of the Bishop Rock, Isles of Scilly (49°30′N 7°08′W / 49.500°N 7.133°W / 49.500; -7.133) by SM UC-16 ( Imperial German Navy). Her crew survived.[57]
Hunsbridge  United Kingdom World War I: The collier was torpedoed and sunk in the Atlantic Ocean 60 nautical miles (110 km) west south west of Cape Spartel (35°10′N 6°50′W / 35.167°N 6.833°W / 35.167; -6.833) by SM UB-49 ( Imperial German Navy) with the loss of three of her crew.[13][18][58]
Minnehaha  United Kingdom World War I: The ocean liner was torpedoed and sunk in the Atlantic Ocean 12 nautical miles (22 km) south east of the Fastnet Rock (51°17′N 9°22′W / 51.283°N 9.367°W / 51.283; -9.367) by SM U-48 ( Imperial German Navy) with the loss of 43 lives.[59]
Mont de Piete  France World War I: The vessel was sunk in the Bay of Biscay off the mouth of the Loire by SM UC-71 ( Imperial German Navy).[60]
Myrmidon  United Kingdom World War I: The cargo ship was damaged in the Mediterranean Sea (37°10′N 6°51′E / 37.167°N 6.850°E / 37.167; 6.850 by SM UC-54 ( Imperial German Navy) with the loss of two of her crew. She was beached at Philippeville, Algeria but was later refloated.[61]
Versailles  France World War I: The fishing vessel was shelled and sunk in the Atlantic Ocean 107 nautical miles (198 km) south by west of Ouessant, Finistère (47°49′N 7°38′W / 47.817°N 7.633°W / 47.817; -7.633) by SM UC-50 ( Imperial German Navy). Her crew survived.[62]
Vestfjeld  Norway World War I: The four-masted barque was sunk in the Atlantic Ocean 40 nautical miles (74 km) south west of the Bishop Rock by SM UC-16 ( Imperial German Navy). Her crew survived.[63]

8 September

List of shipwrecks: 8 September 1917
ShipStateDescription
Aladdin  Norway World War I: The coaster was sunk in the North Sea 5 nautical miles (9.3 km) north by west of Flamborough Head, Yorkshire, United Kingdom by SM UB-34 ( Imperial German Navy) with the loss of a crew member.[64]
Armorique  France World War I: The sailing vessel was sunk in the Atlantic Ocean north of Ouessant, Finistère by SM UB-35 ( Imperial German Navy).[65]
Askelad  Norway World War I: The cargo ship was sunk in the Atlantic Ocean west south west of Ouessant (47°25′N 7°25′W / 47.417°N 7.417°W / 47.417; -7.417) by SM UC-17 ( Imperial German Navy). Her crew survived.[66]
Blanche  France World War I: The schooner was sunk in the Atlantic Ocean north of Ouessant by SM UB-35 ( Imperial German Navy).[67]
Elizabeth  United Kingdom World War I: The schooner was scuttled in the English Channel 12 nautical miles (22 km) east south east of Start Point, Devon by SM UB-31 ( Imperial German Navy). Her crew survived.[68]
Ezel  United Kingdom World War I: The schooner was shelled and sunk in the English Channel 20 nautical miles (37 km) north of Saint-Valery-en-Caux, Seine-Inférieure, France (50°13′N 0°36′E / 50.217°N 0.600°E / 50.217; 0.600) by SM UC-51 ( Imperial German Navy). Her crew survived.[69]
Family's Pride  United Kingdom World War I: The vessel was scuttled in the North Sea 28 nautical miles (52 km) east of Peterhead, Aberdeenshire by SM UC-40 ( Imperial German Navy).[37][70]
Harrow  United Kingdom World War I: The cargo ship was torpedoed and sunk in the North Sea 4 nautical miles (7.4 km) south east of Whitby, Yorkshire by SM UB-41 ( Imperial German Navy) with the loss of two of her crew.[71]
Hockwold  United Kingdom The collier collided with another British merchant ship and sank in the English Channel off The Lizard, Cornwall.[18][72]
Laura  United Kingdom World War I: The ketch was scuttled in the English Channel 25 nautical miles (46 km) north of Fécamp, Seine-Inférieure by SM UC-51 ( Imperial German Navy). Her crew survived.[13][73]
Lighter No. 2  United States The Lighter sank at the wharf of Burton-Furber Coal Company, East Boston, Massachusetts.[74]
Meeta  Russia World War I: The schooner was sunk in the Atlantic Ocean north of Ouessant by SM UB-35 ( Imperial German Navy).[75]
Newholm  United Kingdom World War I: The cargo ship was sunk in the English Channel 1 nautical mile (1.9 km) south of Start Point, Devon by SM UC-30 ( Imperial German Navy) with the loss of twenty of her crew.[76]
Setubal  Norway World War I: The cargo ship was scuttled in the English Channel 25 nautical miles (46 km) north east of Ouessant (48°55′N 4°35′W / 48.917°N 4.583°W / 48.917; -4.583) by SM UC-71 ( Imperial German Navy). Her crew survived.[77]
William H. Clifford  United States World War I: The four-masted schooner was captured and scuttled sunk in the Atlantic Ocean (48°30′N 12°20′W / 48.500°N 12.333°W / 48.500; -12.333) by SM UB-50 ( Imperial German Navy). Her crew survived.[78]

9 September

List of shipwrecks: 9 September 1917
ShipStateDescription
Elsa  Denmark World War I: The barque was torpedoed and sunk in the Atlantic Ocean 6 nautical miles (11 km) off Kinsale, County Cork, United Kingdom by SM U-48 ( Imperial German Navy) with the loss of five crew.[79]
Montana  United States The steamer sank in the Mediterranean Sea between Tunis, French Tunisia, and Malta.[80]
Pluton  Norway World War I: The cargo ship was torpedoed and sunk in the English Channel 6 nautical miles (11 km) east south east of Start Point, Devon by SM UB-31 ( Imperial German Navy) with the loss of ten of her crew.[81]
Storm  United Kingdom World War I: The coaster was torpedoed and sunk in the North Sea 1 nautical mile (1.9 km) off the Sunk Lightship ( United Kingdom) by a Luftstreitkräfte aircraft.[13]
Swiftsure  United Kingdom World War I: The coaster struck a mine and sank in Shapinsay Sound, Orkney Islands with the loss of a crew member.[82]

10 September

List of shipwrecks: 10 September 1917
ShipStateDescription
City of Nagpur  United Kingdom The cargo ship ran aground on the Danae Shoal, off Lourenço Marques, Mozambique. She broke in two and was a total loss.[72] All 259 passengers, and her crew, were rescued.[83]
Eburoon  Belgium The cargo ship was wrecked in Trepassey Bay, Newfoundland.[84]
Jane Williamson  United Kingdom World War I: The brigantine was shelled and sunk in the Atlantic Ocean 20 nautical miles (37 km) north of St. Ives, Cornwall (50°32′N 5°20′W / 50.533°N 5.333°W / 50.533; -5.333) by SM UC-51 ( Imperial German Navy) with the loss of four of her six crew.[85][86]
HMT Loch Ard  Royal Navy World War I: The naval trawler struck a mine and sank in the North Sea off Lowestoft, Suffolk (52°30′N 1°53′E / 52.500°N 1.883°E / 52.500; 1.883) with the loss of five of her crew.[87]
Margarita  United Kingdom World War I: The cargo ship struck a mine and was severely damaged in the North Sea 1 nautical mile (1.9 km) south of the Bressay Lighthouse, Shetland Islands. She was repaired and returned to service in 1921.[88]
Mary Orr  United Kingdom World War I: The sailing vessel was shelled and sunk in the Atlantic Ocean 8 nautical miles (15 km) north by east of the Pendeen Lighthouse, Cornwall (50°18′N 5°40′W / 50.300°N 5.667°W / 50.300; -5.667) by SM UC-51 ( Imperial German Navy). Her crew survived.[89]
Mary Seymour  United Kingdom World War I: The schooner was shelled and sunk in the Atlantic Ocean 7 nautical miles (13 km) north north east of the Pendeen Lighthouse (50°16′N 5°39′W / 50.267°N 5.650°W / 50.267; -5.650) by SM UC-51 ( Imperial German Navy). Her crew survived.[13][90]
Moss Rose  United Kingdom World War I: The three-masted schooner was shelled and sunk in the Atlantic Ocean 7 nautical miles (13 km) north north east of the Pendeen Lighthouse (50°16′N 5°39′W / 50.267°N 5.650°W / 50.267; -5.650) by SM UC-51 ( Imperial German Navy). Her crew survived.[13][91]
Parkmill  United Kingdom The cargo ship was sunk in the North Sea 1.25 nautical miles (2.32 km) south east of the Bressay Lighthouse by SM UC-40 ( Imperial German Navy). Her crew survived.[92]
Sims  Russia World War I: The tug struck a mine and sank in the Baltic Sea off Worms Island.[93]
SM UC-42  Imperial German Navy World War I: The Type UC II submarine was sunk by the explosion of one of her own mines at Cork, Ireland (51°44′N 8°12′W / 51.733°N 8.200°W / 51.733; -8.200) with the loss of all 26 crew.
Vikholmen  Norway World War I: The coaster was sunk in the English Channel south east of the Isle of Wight, United Kingdom (50°11′N 1°22′W / 50.183°N 1.367°W / 50.183; -1.367) by SM UC-71 ( Imperial German Navy) with the loss of eight of her crew.[94]
Water Lily  United Kingdom World War I: The schooner was sunk in the Atlantic Ocean 8 nautical miles (15 km) north north east of the Pendeen Lighthouse (50°18′N 5°40′W / 50.300°N 5.667°W / 50.300; -5.667) by SM UC-51 ( Imperial German Navy). Her crew survived.[95]

11 September

List of shipwrecks: 11 September 1917
ShipStateDescription
Embleton  United Kingdom World War I: The cargo ship was sunk in the Atlantic Ocean 150 nautical miles (280 km) west of Cape Spartel, Morocco by SM U-63 ( Imperial German Navy). Her crew survived.[96]
Luxembourg  United Kingdom World War I: The cargo ship struck a mine and sank in the Atlantic Ocean 3.5 nautical miles (6.5 km) north north east of the Pendeen Lighthouse, Cornwall (50°13′N 5°40′W / 50.217°N 5.667°W / 50.217; -5.667) by SM UC-51 ( Imperial German Navy). Her crew survived.[97]
Rosy Cross  United Kingdom World War I: The fishing smack was scuttled in the Atlantic Ocean 4 nautical miles (7.4 km) north west by west of Crackington Haven, Cornwall by SM UC-51 ( Imperial German Navy). Her crew survived.[37][98]
Tobol  Russia World War I: The cargo ship was sunk in the North Sea 70 nautical miles (130 km) east south east of Duncansby Head, Caithness, United Kingdom (58°10′N 1°00′W / 58.167°N 1.000°W / 58.167; -1.000) by SM U-52 ( Imperial German Navy).[99]
SM U-49  Imperial German Navy World War I: The Type U 43 submarine was rammed, shelled and sunk in the Bay of Biscay (46°17′N 14°42′W / 46.283°N 14.700°W / 46.283; -14.700) by British Transport ( United Kingdom) with the loss of all 43 crew.
Vienna  United Kingdom World War I: The cargo ship was torpedoed and sunk in the Bay of Biscay 340 nautical miles (630 km) west of Ouessant, Finistère, France (46°59′N 13°05′W / 46.983°N 13.083°W / 46.983; -13.083) by SM U-49 ( Imperial German Navy) with the loss of 25 crew. Her captain was taken as a prisoner of war.[13][100]
William  United Kingdom World War I: The schooner was sunk in the Atlantic Ocean 4 nautical miles (7.4 km) north north west of Crackington Haven (50°56′N 5°39′W / 50.933°N 5.650°W / 50.933; -5.650) by SM UC-51 ( Imperial German Navy). Her crew survived.[101]

12 September

List of shipwrecks: 12 September 1917
ShipStateDescription
Agricola  United Kingdom World War I: The schooner was scuttled in the Bristol Channel 15 nautical miles (28 km) west north west of Lundy Island, Devon by SM U-19 ( Imperial German Navy). Her crew survived.[13][102]
HMT Asia  Royal Navy World War I: The naval trawler struck a mine and sank in the North Sea off Bressay, Shetland Islands with the loss of seven of her crew.[103]
Charles Frederick  United States The Barge sank at the wharf of the Peoples Coal and Wood Company Yard, Bridgeport, Connecticut.[74]
Deputé Pierre Goujon  France World War I: The cargo ship was sunk in the Bay of Biscay off Belle Île, Morbihan (47°06′N 3°57′W / 47.100°N 3.950°W / 47.100; -3.950) by SM U-103 ( Imperial German Navy). Her crew survived.[104]
Edinorog  Imperial Russian Navy The Bars-class submarine ran aground off "Ayret Island", in the Baltic Sea. She was refloated on 25 September with assistance from Volkhov ( Russia) and taken in to Reval for repairs.[105]
Gibraltar  United Kingdom World War I: The cargo ship was torpedoed and sunk in the Mediterranean Sea 100 nautical miles (190 km) south east of Cape Creus, Spain (41°17′N 5°50′E / 41.283°N 5.833°E / 41.283; 5.833) by SM UC-27 ( Imperial German Navy) with the loss of four of her crew.[13][106]
Gisla  Norway World War I: The cargo ship was sunk in the Mediterranean Sea 4 nautical miles (7.4 km) off Cape Palos, Murcia Spain (37°39′N 0°32′W / 37.650°N 0.533°W / 37.650; -0.533) by SM U-64 ( Imperial German Navy). Her crew survived.[107]
HS 3 and RB 10  United Kingdom World War I: The tug and refrigerated barge were scuttled in the Atlantic Ocean 18 nautical miles (33 km) west by north of Cape Sines, Portugal by SM UB-50 ( Imperial German Navy). Her crew survived, but four of them were taken as prisoners of war.[108][109]
Reim  Norway World War I: The cargo ship was sunk in the Atlantic Ocean off Cape St. Vincent, Portugal by SM U-63 ( Imperial German Navy). Her crew survived.[110]
St. Margaret  United Kingdom World War I: The passenger ship was torpedoed and sunk in the Norwegian Sea 30 nautical miles (56 km) south east of Lítla Dímun, Faroe Islands by SM U-103 ( Imperial German Navy) with the loss of five crew.[111]
SM U-45  Imperial German Navy World War I: The Type U 43 submarine was torpedoed and sunk in the Atlantic Ocean north west of the Shetland Islands, United Kingdom (55°48′N 7°30′W / 55.800°N 7.500°W / 55.800; -7.500) by HMS D7 ( Royal Navy) with the loss of 43 of her 45 crew.
Urd  United Kingdom World War I: The cargo ship was torpedoed and sunk in the Mediterranean Sea 10 nautical miles (19 km) north by east of Cape Palos (37°52′N 0°28′W / 37.867°N 0.467°W / 37.867; -0.467) by SM U-64 ( Imperial German Navy) with the loss of three crew.[13][112]
Wilmore  United States World War I: The cargo ship was torpedoed and sunk in the Mediterranean Sea 4 nautical miles (7.4 km) north east of the Hornigas Lighthouse, Cape Palos, Spain (37°41′N 0°31′W / 37.683°N 0.517°W / 37.683; -0.517) by SM U-64 ( Imperial German Navy). Her crew survived.[113]

13 September

List of shipwrecks: 13 September 1917
ShipStateDescription
Arlequin Tunisia Tunisia World War I: The sailing vessel was sunk in the Gulf of Gabès by SM UC-52 ( Imperial German Navy). Her crew survived.[114]
Chère Rose Tunisia Tunisia World War I: The sailing vessel was sunk in the Gulf of Gabès by SM UC-52 ( Imperial German Navy).[115]
Comizianes da Graca  Portugal World War I: The sailing vessel was sunk in the Atlantic Ocean 6 nautical miles (11 km) north of Cape Sines by SM UB-50 ( Imperial German Navy).[116]
Correiro de Sines  Portugal World War I: The sailing vessel was sunk in the Atlantic Ocean off the coast of Portugal by SM UB-50 ( Imperial German Navy).[117]
Ortigia Tunisia Tunisia World War I: The sailing vessel was sunk in the Gulf of Gabès by SM UC-52 ( Imperial German Navy).[118]
SM UC-21  Imperial German Navy The Type UC II submarine departed Zeebrugge, West Flanders, Belgium for the Bay of Biscay. No further trace, presumed lost with all 26 crew.
Vittoria Tunisia Tunisia World War I: The sailing vessel was sunk in the Gulf of Gabès by SM UC-52 ( Imperial German Navy).[119]

14 September

List of shipwrecks: 14 September 1917
ShipStateDescription
Amiral de Kersaint  France World War I: The cargo ship was sunk in the Mediterranean Sea 5 nautical miles (9.3 km) off Cape Tortosa, Spain by SM U-64 ( Imperial German Navy).[120]
Ausonia  Italy World War I: The cargo ship was sunk in the Mediterranean Sea off Cape Tortosa (40°46′N 1°03′E / 40.767°N 1.050°E / 40.767; 1.050) by SM U-64 ( Imperial German Navy). Her crew survived.[121]
Chulmleigh  United Kingdom World War I: The cargo ship was torpedoed and sunk in the Mediterranean Sea 10 nautical miles (19 km) south west by west of Cape Salou, Spain (40°54′N 1°04′E / 40.900°N 1.067°E / 40.900; 1.067) by SM U-64 ( Imperial German Navy). Her crew survived.[13][122]
USS D-2  United States Navy The D-class submarine sprang a leak and sank at New London Naval Base, Connecticut. Her crew survived. She was subsequently refloated, repaired and returned to service.[74]
Logan  United States The Schooner barge went ashore at South Wellfleet, Massachusetts. Abandoned by owners.[74][123]
Sado  Portugal World War I: The ship was sunk in the Atlantic Ocean 15 nautical miles (28 km) south west of Cape Sines by SM UB-50 ( Imperial German Navy).[124]
Zeta  United Kingdom World War I: The cargo ship was torpedoed and sunk in the Atlantic Ocean 8 nautical miles (15 km) south by west of Mine Head, County Cork by SM UC-51 ( Imperial German Navy). Her crew survived.[13][125]

15 September

List of shipwrecks: 15 September 1917
ShipStateDescription
Dependence  United Kingdom World War I: The schooner was scuttled in the Atlantic Ocean off The Lizard, Cornwall by SM UB-38 ( Imperial German Navy). Her crew survived.[13][126]
Idomeneus  United Kingdom World War I: The cargo ship was torpedoed and damaged in the North Channel (56°40′N 10°50′W / 56.667°N 10.833°W / 56.667; -10.833) by SM U-67 ( Imperial German Navy) with the loss of four crew. She was beached but was later refloated.[127]
Platuria  United States World War I: The tanker was torpedoed and sunk in the Atlantic Ocean off Tangier, Morocco (35°08′N 9°15′W / 35.133°N 9.250°W / 35.133; -9.250) by SM U-63 ( Imperial German Navy) with the loss of ten crew.[128][129][130]
Rollesby  United Kingdom World War I: The cargo ship was torpedoed and sunk in the North Sea 80 nautical miles (150 km) east north east of Muckle Flugga, Shetland Islands by SM U-48 ( Imperial German Navy). Her crew survived.[131]
Santaren  United Kingdom World War I: The cargo ship was torpedoed and sunk in the North Sea 40 nautical miles (74 km) north east of Muckle Flugga (61°36′N 0°14′W / 61.600°N 0.233°W / 61.600; -0.233) by SM UB-63 ( Imperial German Navy). Her crew survived.[132]
Sommeina  United Kingdom World War I: The cargo ship struck a mine and sank in the Atlantic Ocean 4 nautical miles (7.4 km) south east of The Manacles (50°01′N 4°57′W / 50.017°N 4.950°W / 50.017; -4.950). Her crew survived.[133]
Saint Jacques  France World War I: The cargo ship struck a mine and sank in the Irish Sea 5 nautical miles (9.3 km) south west of St. Ann's Head, Pembrokeshire, United Kingdom by SM UC-51 ( Imperial German Navy).[134]

16 September

List of shipwrecks: 16 September 1917
ShipStateDescription
Annina Capano  Italy World War I: The sailing vessel was sunk in the Gulf of Lion (42°50′N 3°29′E / 42.833°N 3.483°E / 42.833; 3.483) by SM UC-27 ( Imperial German Navy).[135]
Ann J. Trainer  United States World War I: The sailing vessel was sunk in the Atlantic Ocean 30 nautical miles (56 km) off Ouessant, Finistère, France (48°44′N 5°39′W / 48.733°N 5.650°W / 48.733; -5.650) by SM UC-21 ( Imperial German Navy). Her crew survived.[136]
Arabis  United Kingdom World War I: The cargo ship was torpedoed and sunk in the Atlantic Ocean 210 nautical miles (390 km) west by south of Ouessant (46°28′N 9°42′W / 46.467°N 9.700°W / 46.467; -9.700) by SM U-54 ( Imperial German Navy) with the loss of twenty crew.[13][137]
Eendracht VII  Netherlands World War I: The fishing vessel was scuttled in the North Sea 8 nautical miles (15 km) off IJmuiden, North Holland by SM UC-64 ( Imperial German Navy). Her crew survived.[138]
Facto  Norway World War I: The cargo ship was torpedoed and sunk in Mount's Bay (49°58′N 5°36′W / 49.967°N 5.600°W / 49.967; -5.600) by SM UB-18 ( Imperial German Navy) with the los of two of her crew.[139]
HMS G9  Royal Navy World War I: The G-class submarine was rammed and sunk at night in the North Sea by HMS Pasley ( Royal Navy), after the submarine had mistaken Pasley for a U-boat and fired two torpedoes at her. All but one of her 31 crew were killed; the survivor rescued by HMS Pasley.
Quatre Frères  France World War I: The fishing vessel was scuttled in the Atlantic Ocean 240 nautical miles (440 km) west of the French coast by SM UC-31 ( Imperial German Navy).[140]
Sandsend  United Kingdom World War I: The collier was torpedoed and sunk in the Atlantic Ocean 6 nautical miles (11 km) south east by east of Mine Head, County Cork by SM UC-48 ( Imperial German Navy) with the loss of three of her crew.[13][141][142]

17 September

List of shipwrecks: 17 September 1917
ShipStateDescription
Australia  Russia World War I: The cargo ship was sunk in the Atlantic Ocean 35 nautical miles (65 km) north west of Muckle Flugga, Shetland Islands, United Kingdom by SM UB-62 ( Imperial German Navy). Her crew survived.[143]
Eugenio D.  Italy World War I: The sailing vessel was sunk in the Gulf of Lion by SM UC-27 ( Imperial German Navy).[144]
Muccio  Italy World War I: The sailing vessel was sunk in the Gulf of Lion by SM UC-27 ( Imperial German Navy).[145]
Niemen  France World War I: The cargo ship was sunk in the Atlantic Ocean 122 nautical miles (226 km) north west of Cape Ortegal, Spain (45°53′N 8°06′W / 45.883°N 8.100°W / 45.883; -8.100) by SM U-54 ( Imperial German Navy).[146]
Our Bairns  United Kingdom World War I: The fishing smack was scuttled in Irish Sea 25 nautical miles (46 km) south west of the Coningbeg Lightship ( United Kingdom) by SM UC-48 ( Imperial German Navy). Her crew survived.[37][147]
Paraciers  France World War I: The cargo ship was torpedoed and sunk in the North Sea 12 nautical miles (22 km) north of the Spurn Lightship ( United Kingdom) by SM UC-64 ( Imperial German Navy). Her crew survived.[148]
Queen Amelia  United Kingdom World War I: The cargo ship was sunk torpedoed, shelled, and sunk in the Atlantic Ocean 19 nautical miles (35 km) north north east of Muckle Flugga by SM UB-62 ( Imperial German Navy). Her crew survived.[149]
Ronald  United Kingdom World War I: The fishing smack was scuttled in Irish Sea 25 nautical miles (46 km) south west of the Coningbeg Lightship ( United Kingdom) by SM UC-48 ( Imperial German Navy). Her crew survived.[37][150]
SM UC-45  Imperial German Navy The Type UC II submarine sank in the North Sea (54°09′N 7°35′E / 54.150°N 7.583°E / 54.150; 7.583) with the loss of all 35 crew. She was later salvaged, repaired and returned to service.[151]

18 September

List of shipwrecks: 18 September 1917
ShipStateDescription
Arendal  Norway World War I: The cargo ship was shelled and sunk in the Atlantic Ocean 115 nautical miles (213 km) west of Cape Spartel, Morocco (35°27′N 8°20′W / 35.450°N 8.333°W / 35.450; -8.333) by SM U-63 ( Imperial German Navy). Her crew survived.[13][152]
Cachalot Tunisia Tunisia World War I: The sailing vessel was shelled and sunk in the Gulf of Gabès off the Kerkennah Islands (35°14′N 11°08′E / 35.233°N 11.133°E / 35.233; 11.133) by SM UC-52 ( Imperial German Navy). Her crew survived.[153]
Car Float No. 15  United States The Car float sank near pier #4 at South Boston, Massachusetts. Later raised.[74]
HMS Contest  Royal Navy World War I: The Acasta-class destroyer was torpedoed and sunk in the Western Approaches (48°54′N 7°03′W / 48.900°N 7.050°W / 48.900; -7.050) by SM U-106 ( Imperial German Navy) with the loss of 35 of her 75 crew.[154]
Cora M. or Cora M.  Canada The vessel, described as either a steam cargo ship or a lumber Schooner, was wrecked and destroyed off Monomoy Point, Massachusetts.[74][155]
HMS Glenfoyle  Royal Navy World War I: The Q-ship was torpedoed and sunk in the Atlantic Ocean south west of Ireland (50°46′N 11°04′W / 50.767°N 11.067°W / 50.767; -11.067) by SM U-43 ( Imperial German Navy) with the loss of eighteen crew.[156]
Joseph Chamberlain  United Kingdom World War I: The cargo ship was torpedoed and sunk in the Atlantic Ocean 50 nautical miles (93 km) north by west of Muckle Flugga, Shetland Islands by SM UB-62 ( Imperial German Navy) with the loss of eighteen of her crew. Two survivors were taken as prisoners of war.[13][157]
Polar Prince  United Kingdom World War I: The collier was torpedoed and sunk in the Atlantic Ocean 8 nautical miles (15 km) south west of Cape Spartel, Spanish Morocco (35°30′N 6°45′W / 35.500°N 6.750°W / 35.500; -6.750) by SM UB-50 ( Imperial German Navy). Her crew survived, but her captain was taken as a prisoner of war.[13][141][158]
SS Port Kembla (2)  United Kingdom World War I: The cargo ship struck a mine and sank in the Atlantic Ocean off Cape Farewell, Greenland. Her crew were rescued.[13][159]

19 September

List of shipwrecks: 19 September 1917
ShipStateDescription
Blanche  France World War I: The four-masted barque was torpedoed and sunk in the Atlantic Ocean (47°00′N 10°30′W / 47.000°N 10.500°W / 47.000; -10.500) by SM U-151 ( Imperial German Navy) with the loss of eighteen crew.[160]
Etal Manor  United Kingdom World War I: The collier was torpedoed and sunk in the Atlantic Ocean 7 nautical miles (13 km) south by west of Hook Point, County Waterford by SM UC-48 ( Imperial German Navy) with the loss of six of her crew.[13][18][161]
Hydra  Denmark World War I: The three-masted schooner was shelled and sunk in the Atlantic Ocean west of the Orkney Islands, United Kingdom (59°33′N 7°37′W / 59.550°N 7.617°W / 59.550; -7.617) by SM U-94 ( Imperial German Navy) with the loss of all six crew.[162]
Marthe Marguerite  France World War I: The three-masted barque was shelled and sunk in the Atlantic Ocean north west of Cape Finisterre, Spain (46°18′N 11°25′W / 46.300°N 11.417°W / 46.300; -11.417) by SM U-54 ( Imperial German Navy). Her crew survived.[163]
Montana  Norway The cargo ship capsized and sank in the Mediterranean Sea off Tunis, Tunisia.[164]
Saint Ronald  United Kingdom World War I: The cargo ship was torpedoed and sunk in the Atlantic Ocean 95 nautical miles (176 km) north north west of Tory Island, County Donegal (56°22′N 10°17′W / 56.367°N 10.283°W / 56.367; -10.283) by SM U-82 ( Imperial German Navy) with the loss of 24 of her crew.[13][165]
Teresita  Italy World War I: The sailing vessel was sunk in the Tyrrhenian Sea by SM UC-53 ( Imperial German Navy).[166]

20 September

List of shipwrecks: 20 September 1917
ShipStateDescription
Fabian  United Kingdom World War I: The cargo ship was torpedoed and sunk in the Atlantic Ocean 30 nautical miles (56 km) off Cape Spartel, Morocco (35°45′N 6°40′W / 35.750°N 6.667°W / 35.750; -6.667) by SM UB-50 ( Imperial German Navy) with the loss of three of her crew.[13][167]
Gioffredo Mameli  Italy World War I: The cargo ship was sunk in the Atlantic Ocean 45 nautical miles (83 km) north west of Cape Spartel (36°05′N 6°15′W / 36.083°N 6.250°W / 36.083; -6.250) by SM UB-50 ( Imperial German Navy).[168]
Kurdistan  United Kingdom World War I: The collier was torpedoed and sunk in the Mediterranean Sea 27 nautical miles (50 km) east south east of Pantelleria, Italy (36°40′N 12°37′E / 36.667°N 12.617°E / 36.667; 12.617) by SM U-32 ( Imperial German Navy). Her crew survived.[13][18][169]

21 September

List of shipwrecks: 21 September 1917
ShipStateDescription
Aline Montreuil  France World War I: The cargo ship was torpedoed and sunk in the English Channel 22 nautical miles (41 km) north of Cap Barfleur, Manche (50°02′N 1°18′W / 50.033°N 1.300°W / 50.033; -1.300) by SM UB-38 ( Imperial German Navy). Her crew survived.[170]
Christina  Italy World War I: The sailing vessel was sunk in the Tyrrhenian Sea by SM UC-53 ( Imperial German Navy).[171]
Kouang-si  France World War I: The passenger ship was torpedoed and damaged in the English Channel 6 nautical miles (11 km) south east of The Lizard, Cornwall, United Kingdom by SM UC-48 ( Imperial German Navy). She was beached but was later refloated.[172]
Radaas  Denmark World War I: The cargo ship was torpedoed and sunk in the English Channel 18 nautical miles (33 km) west of Portland Bill, Dorset, United Kingdom (50°34′N 3°05′W / 50.567°N 3.083°W / 50.567; -3.083) by SM UB-40 ( Imperial German Navy) with the loss of a crew member.[173]
Santo Nicola  Italy World War I: The sailing vessel was sunk in the Aegean Sea by SM UC-23 ( Imperial German Navy).[174]
Spiridon  Greece World War I: The sailing vessel was sunk in the Aegean Sea by SM UC-23 ( Imperial German Navy).[175]

22 September

List of shipwrecks: 22 September 1917
ShipStateDescription
Alkyon Greece Greece World War I: The cargo ship was sunk in the Mediterranean Sea off Oran, Algeria by SM UB-50 ( Imperial German Navy). Her crew survived.[176]
Caroline  France World War I: The schooner was shelled and sunk in the Mediterranean Sea 60 nautical miles (110 km) west of Asinara Island, Italy by SM U-32 ( Imperial German Navy). Her crew survived.[177]
Garifaglia Greece Greece World War I: The barque was scuttled in the Mediterranean Sea west of Crete (34°57′N 22°14′E / 34.950°N 22.233°E / 34.950; 22.233) by SM UC-38 ( Imperial German Navy).[178]
Greleen  United Kingdom World War I: The cargo ship was torpedoed and sunk in the English Channel 7 nautical miles (13 km) east by north of Berry Head, Devon (50°28′N 3°14′W / 50.467°N 3.233°W / 50.467; -3.233) by SM UB-40 ( Imperial German Navy) with the loss of nineteen of her crew.[13][179]
SMS Inn  Austro-Hungarian Navy World War I: The river monitor struck a Romanian mine laid by Danube ships ( Royal Romanian Navy) and sank near Brăila.[180][181][182]
Italia  France World War I: The coaster was sunk in the Atlantic Ocean 11 nautical miles (20 km) north west of Cape Ortegal, A Coruña, Spain by SM UC-63 ( Imperial German Navy).[183]
John Knudsen  Norway World War I: The cargo ship was sunk in the Mediterranean Sea 20 nautical miles (37 km) north of Cape Falcon, Algeria (36°00′N 1°01′W / 36.000°N 1.017°W / 36.000; -1.017) by SM UB-50 ( Imperial German Navy) with the loss of a crew member.[184]
Mascotte  France World War I: The schooner was sunk in the English Channel 114 nautical miles (211 km) off Ouessant, Finistère by SM U-60 ( Imperial German Navy). Her crew survived.[185]
Primo  Italy World War I: The sailing vessel was sunk in the Tyrrhenian Sea 3 nautical miles (5.6 km) off the Fimara Grande Lightship ( Italy) by SM UC-53 ( Imperial German Navy).[186]
Trongate  United Kingdom World War I: The cargo ship was torpedoed and sunk in the North Sea 5 nautical miles (9.3 km) north west of Flamborough Head, Yorkshire by SM UC-71 ( Imperial German Navy) with the loss of two of her crew.[13][187]
Ville de Valenciennes  France World War I: The cargo ship was sunk in the North Sea 5 nautical miles (9.3 km) south east of Flamborough Head by SM UC-64 ( Imperial German Navy). Her crew survived.[188]

23 September

List of shipwrecks: 23 September 1917
ShipStateDescription
Agios Nicolaos Greece Greece World War I: The schooner was shelled and sunk in the Mediterranean Sea west of Crete (35°33′N 23°28′E / 35.550°N 23.467°E / 35.550; 23.467) by SM UC-38 ( Imperial German Navy).[189]
Argietta  Italy World War I: The brigantine was scuttled in the Tyrrhenian Sea by SM UC-53 ( Imperial German Navy).[190]
Giuseppina Concertina  Italy World War I: The sailing vessel was sunk in the Tyrrhenian Sea by SM UC-53 ( Imperial German Navy).[191]
Gloire  France World War I: The fishing vessel was scuttled in the Atlantic Ocean 240 nautical miles (440 km) off Ouessant, Finistère by SM U-60 ( Imperial German Navy). Her crew were rescued by the fishing vessel Algesiras ( France).[192]
Henry Lippitt  United States World War I: The sailing vessel was scuttled in the Atlantic Ocean 200 nautical miles (370 km) west of Brest, Finistère (48°17′N 10°05′W / 48.283°N 10.083°W / 48.283; -10.083) by SM U-60 ( Imperial German Navy). Her crew survived.[193]
Hornsund  United Kingdom World War I: The cargo ship was torpedoed and sunk in the North Sea 2.5 nautical miles (4.6 km) east south east of Scarborough, Yorkshire by SM UC-71 ( Imperial German Navy) with the loss of a crew member.[194]
Irthington  United Kingdom World War I: The cargo ship was torpedoed and sunk in the Gulf of Gioja 3 nautical miles (5.6 km) east north east of Cape Vaticano, Italy (40°35′N 15°01′E / 40.583°N 15.017°E / 40.583; 15.017) by SM UC-53 ( Imperial German Navy). Her crew survived.[13][195]
Itasca  United States The freighter sprung a leak in severe weather and foundered in the Atlantic Ocean 250 miles (400 km) off Bermuda. Her captain was killed, two crewmen died later, 24 survivors, including the captain's wife, were rescued by a US steamer nine days later 250 miles off Nantucket.[196][197]
Jeune Mathilde  France World War I: The fishing vessel was scuttled in the Atlantic Ocean 240 nautical miles (440 km) west of Ouessant by SM U-60 ( Imperial German Navy). Her crew were rescued by Algesiras ( France).[198]
Joaquina  Spain World War I: The sailing vessel was sunk in the Mediterranean Sea 8 nautical miles (15 km) off Cadaqués, Girona, Spain by SM UC-27 ( Imperial German Navy).[199]
Medie  France World War I: The transport ship was sunk in the Mediterranean Sea 120 nautical miles (220 km) north west of Cape Bougaroni, Algeria by SM UC-27 ( Imperial German Navy) with the loss of 250 of the 626 people on board.[200][201]
Nicholaos Greece Greece World War I: The sailing vessel was sunk in the Aegean Sea by SM UC-23 ( Imperial German Navy).[202]
Perseverance  United Kingdom World War I: The schooner was shelled and sunk in the English Channel 14 nautical miles (26 km) north west by north of Saint-Valery-en-Caux, Seine-Inférieure, France by SM UC-47 ( Imperial German Navy). Her crew survived.[203]
Rosehill  United Kingdom World War I: The collier was torpedoed and damaged in the English Channel 5 nautical miles (9.3 km) south west by south Fowey, Cornwall by SM UB-40 ( Imperial German Navy). She was taken in tow but sank in Whitesand Bay (50°19′40″N 4°18′25″W / 50.32778°N 4.30694°W / 50.32778; -4.30694). Her crew survived.[204]
St. Dunstan  United Kingdom World War I: The dredger struck a mine and sank in the English Channel 12 nautical miles (22 km) north west by west of Portland Bill, Dorset with the loss of two of her crew.[205]
Western Belle  United States The schooner barge lost her towline to Warrior ( United States) in severe weather and then sprung a leak and foundered in the Atlantic Ocean 22 miles (35 km) east of Fenwick Island. Three crew were killed.[196][206]

24 September

List of shipwrecks: 24 September 1917
ShipStateDescription
Europe  France World War I: The four-masted barque was scuttled in the Atlantic Ocean (46°37′N 11°30′W / 46.617°N 11.500°W / 46.617; -11.500) by SM UC-63 ( Imperial German Navy). Her crew survived.[207]
HMT Hastfen  Royal Navy World War I: The naval trawler struck a mine and sank in the North Sea with the loss of four of her crew.[208]
Iriston  United Kingdom World War I: The cargo ship was torpedoed and sunk in the Mediterranean Sea 7 nautical miles (13 km) south by west of Cape Camarat, Var, France (43°17′N 6°49′E / 43.283°N 6.817°E / 43.283; 6.817) by SM U-32 ( Imperial German Navy). Her crew survived.[13][209]
Leka  Norway World War I: The cargo ship was sunk in the North Sea 6 to 8 nautical miles (11 to 15 km) east of Flamborough Head, Yorkshire, United Kingdom by SM UC-71 ( Imperial German Navy) with the loss of seventeen of her crew.[210]
Louis Bossert  Norway World War I: The sailing vessel was sunk in the Bay of Biscay (45°11′N 9°35′W / 45.183°N 9.583°W / 45.183; -9.583) by SM U-54 ( Imperial German Navy). Her crew survived.[211]
Mimosa  France World War I: The three-masted schooner was shelled and damaged in the Atlantic Ocean 25 nautical miles (46 km) north west of the Isles of Scilly, United Kingdom by SM UC-47 ( Imperial German Navy) with the loss of a crew member. Survivors abandoned ship and were rescued or reached St. Mary's in their lifeboats. Mimosa was later towed in to St Mary's.[212]
Nuova Francesca  Italy World War I: The sailing vessel was sunk in the Tyrrhenian Sea by SM UC-53 ( Imperial German Navy).[213]
Perseverance  France World War I: The four-masted barque was scuttled in the Atlantic Ocean by SM UC-63 ( Imperial German Navy). Her crew survived.[214]
S. Espedito  Italy World War I: The sailing vessel was sunk in the Tyrrhenian Sea by SM UC-53 ( Imperial German Navy). Her crew survived.[215]

25 September

List of shipwrecks: 25 September 1917
ShipStateDescription
Boynton  United Kingdom World War I: The cargo ship was torpedoed and sunk in the Atlantic Ocean 5 nautical miles (9.3 km) west north west of Cape Cornwall (50°05′N 5°55′W / 50.083°N 5.917°W / 50.083; -5.917) by SM UC-47 ( Imperial German Navy) with the loss of 23 of her crew.[13][216]
City of Swansea  United Kingdom World War I: The cargo ship was torpedoed and sunk in the English Channel 15 nautical miles (28 km) east north east of Berry Head, Devon by SM UB-40 ( Imperial German Navy) with the loss of two of her crew.[13][217]
Dinorah  France World War I: The cargo ship was sunk in the Atlantic Ocean (approximately 46°45′N 12°00′W / 46.750°N 12.000°W / 46.750; -12.000) by SM UC-63 ( Imperial German Navy).[218]
Edouard Detaille  France World War I: The barque was torpedoed and sunk in the Atlantic Ocean (46°00′N 9°30′W / 46.000°N 9.500°W / 46.000; -9.500) by SM U-60 ( Imperial German Navy). Her crew survived.[219]
HMT James Seckar  Royal Navy World War I: The naval trawler was sunk in the Atlantic Ocean (approximately 46°45′N 12°00′W / 46.750°N 12.000°W / 46.750; -12.000) by SM UC-63 ( Imperial German Navy) with the loss of sixteen of her crew.[220]
Marceau  France World War I: The schooner was sunk in the Atlantic Ocean (46°15′N 9°42′W / 46.250°N 9.700°W / 46.250; -9.700) by SM U-54 ( Imperial German Navy). Her crew survived.[221]
Paolina  United States World War I: The barque was shelled and sunk, or captured and scuttled, in the Atlantic Ocean 100 nautical miles (190 km) north west of Ouessant, Finistère, France (48°37′N 8°45′W / 48.617°N 8.750°W / 48.617; -8.750) by SM UC-65 ( Imperial German Navy). Her crew survived.[222][129][223]
Unione Republicaine  France World War I: The fishing vessel was sunk in the Atlantic Ocean 100 nautical miles (190 km) west north west of Penmarc'h, Finistère (48°05′N 7°14′W / 48.083°N 7.233°W / 48.083; -7.233) by SM U-90 ( Imperial German Navy).[224]

26 September

List of shipwrecks: 26 September 1917
ShipStateDescription
Acorn  United Kingdom World War I: The schooner was shelled and sunk in the English Channel 20 nautical miles (37 km) south by east of Start Point, Devon by SM UC-69 ( Imperial German Navy). Her crew survived.[225]
Ciro  Italy World War I: The sailing vessel was scuttled in the Mediterranean Sea south of Sardinia by SM UB-50 ( Imperial German Navy).[226]
Heraklios Greece Greece World War I: The cargo ship was sunk in the Mediterranean Sea off Cape Cherchell, Algeria (36°38′N 1°50′E / 36.633°N 1.833°E / 36.633; 1.833) by SM U-63 ( Imperial German Navy). Her crew survived.[227]
Jacqueline  France World War I: The barque was torpedoed and sunk in the Atlantic Ocean 250 nautical miles (460 km) south west of Ouessant, Finistère (46°21′N 9°44′W / 46.350°N 9.733°W / 46.350; -9.733) by SM U-101 ( Imperial German Navy) with the loss of all 35 crew.[228]
HMT Ocean Star  Royal Navy World War I: The naval trawler struck a mine and sank in the English Channel off the Nab Lightship ( United Kingdom) with the loss of ten of her crew.[229]
Okhotnik  Imperial Russian Navy World War I: The General Kondratenko-class destroyer struck an Imperial German Navy mine and sank in the Irben Strait.[230]
S.N.A. 3  France World War I: The cargo ship was torpedoed and sunk in the North Sea 17 nautical miles (31 km) off Flamborough Head, Yorkshire, United Kingdom (53°54′N 0°07′E / 53.900°N 0.117°E / 53.900; 0.117) by SM UB-30 ( Imperial German Navy). Her crew survived; they were rescued by Portaferry ( United Kingdom).[231]
SM UC-33  Imperial German Navy World War I: The Type UC II submarine was shelled, rammed and sunk in St. George's Channel (51°55′N 6°14′W / 51.917°N 6.233°W / 51.917; -6.233) by the patrol boat PC-61 ( Royal Navy) with the loss of 27 of her 28 crew.[232]

27 September

List of shipwrecks: 27 September 1917
ShipStateDescription
HM CMB-8  Royal Navy The Coastal Motor Boat was lost on this date.[18]
Cydonia  United Kingdom The collier was lost on this date.[18]
Deux Jeannes  France World War I: The fishing vessel was sunk in the Atlantic Ocean 30 nautical miles (56 km) south west of Ouessant, Finistère (48°06′N 5°40′W / 48.100°N 5.667°W / 48.100; -5.667) by SM U-90 ( Imperial German Navy).[233]
Greltoria  United Kingdom World War I: The cargo ship was torpedoed and sunk in the North Sea 3 nautical miles (5.6 km) north west by north of Flamborough Head, Yorkshire by SM UB-34 ( Imperial German Navy). Her crew survived.[13][234]
Liberté  France World War I: The fishing vessel was sunk in the Atlantic Ocean 30 nautical miles (56 km) south west of Ouessant (48°06′N 5°40′W / 48.100°N 5.667°W / 48.100; -5.667) by SM U-90 ( Imperial German Navy).[235]
Peuples Frères  France World War I: The fishing vessel was sunk in the Atlantic Ocean 30 nautical miles (56 km) south west Ouessant (48°06′N 5°40′W / 48.100°N 5.667°W / 48.100; -5.667) by SM U-90 ( Imperial German Navy).[236]
SM UC-6  Imperial German Navy World War I: The Type UC I submarine struck a mine and sank in the North Sea off North Foreland, Kent, United Kingdom (51°30′N 1°34′E / 51.500°N 1.567°E / 51.500; 1.567) with the loss of all sixteen crew.[237]

29 September

List of shipwrecks: 29 September 1917
ShipStateDescription
Bon Premier  France World War I: The barque was shelled and sunk in the Atlantic Ocean 200 nautical miles (370 km) south west of Ouessant, Finistère (46°06′N 11°25′W / 46.100°N 11.417°W / 46.100; -11.417) by SM U-60 ( Imperial German Navy). Her crew survived.[238]
Elmsgarth  United Kingdom World War I: The cargo ship was torpedoed and sunk in the Atlantic Ocean 50 nautical miles (93 km) north west of Tory Island, County Donegal by SM U-61 ( Imperial German Navy). Her crew survived.[13][239]
Eugenie Fautrel  France World War I: The barque was shelled and sunk in the Atlantic Ocean 200 nautical miles (370 km) south west of Ouessant (46°30′N 9°59′W / 46.500°N 9.983°W / 46.500; -9.983) by SM U-60 ( Imperial German Navy). Her crew were rescued by the fishing vessel Cygne ( France).[240]
Kildonan  United Kingdom World War I: The cargo ship was torpedoed and sunk in the Irish Sea 2 nautical miles (3.7 km) north north west of the Pendeen Lighthouse, Cornwall (50°11′N 5°42′W / 50.183°N 5.700°W / 50.183; -5.700) by SM UB-35 ( Imperial German Navy) with the loss of fourteen of her crew.[241]
Percy B.  United Kingdom World War I: The schooner was shelled and sunk in the Atlantic Ocean 180 nautical miles (330 km) north by west of Cape Villano, Spain by SM U-60 ( Imperial German Navy). Her crew survived.[242]
R 235  France World War I: The fishing schooner was sunk in the Mediterranean Sea (34°38′N 34°43′E / 34.633°N 34.717°E / 34.633; 34.717) by SM U-73 ( Imperial German Navy). Her crew survived.[243]
Sanwen  United Kingdom World War I: The cargo ship was torpedoed and sunk in the Mediterranean Sea off Cape Béar, Spain (42°52′N 4°15′E / 42.867°N 4.250°E / 42.867; 4.250) by SM U-32 ( Imperial German Navy) with the loss of two crew.[244]
Swan River  United Kingdom World War I: The cargo ship was torpedoed and sunk in the Mediterranean Sea 27 nautical miles (50 km) west of Oran, Algeria (36°07′N 0°54′W / 36.117°N 0.900°W / 36.117; -0.900) by SM U-39 ( Imperial German Navy). Her crew survived.[245]
SM UC-55  Imperial German Navy World War I: The Type UC II submarine was shelled, depth charged and sunk off the Shetland Islands, United Kingdom (60°02′N 1°02′W / 60.033°N 1.033°W / 60.033; -1.033) by HMS Sylvia and HMS Tirade (both  Royal Navy) with the loss of ten of her 27 crew.

30 September

List of shipwrecks: 30 September 1917
ShipStateDescription
Amiral Troude  France World War I: The barque was torpedoed and sunk in the Atlantic Ocean 400 nautical miles (740 km) off Penmarc'h, Finistère (46°40′N 15°30′W / 46.667°N 15.500°W / 46.667; -15.500) by SM UB-51 ( Imperial German Navy). Her crew survived.[246]
HMT Charlsin  Royal Navy World War I: The naval trawler was scuttled in the Mediterranean Sea 8 nautical miles (15 km) north of Mersa Matruh, Egypt by SM UC-74 ( Imperial German Navy). Her crew survived.[247]
Drake  United Kingdom World War I: The cargo ship was shelled and sunk in the Atlantic Ocean 340 nautical miles (630 km) west of Ouessant, Finistère (46°43′N 13°01′W / 46.717°N 13.017°W / 46.717; -13.017) by SM U-90 ( Imperial German Navy). Her crew survived, but her captain was taken as a prisoner of war.[13][248]
Heron  United Kingdom World War I: The coaster was torpedoed and sunk in the Atlantic Ocean 300 nautical miles (560 km) south west of Ouessant (46°27′N 11°14′W / 46.450°N 11.233°W / 46.450; -11.233) by SM U-90 ( Imperial German Navy) with the loss of 22 crew.[13][249]
Midlothian  United Kingdom World War I: The cargo ship was shelled and sunk in the Mediterranean Sea 80 nautical miles (150 km) south of Cape Greco, Cyprus by SM U-73 ( Imperial German Navy). Her crew survived, but three of them were taken as prisoners of war.[250]
Nicolosa Greece Greece World War I: The sailing vessel was sunk in the Mediterranean Sea off Cyprus by SM U-73 ( Imperial German Navy).[251]

Unknown date

List of shipwrecks: Unknown date 1917
ShipStateDescription
HMS Poleaxe  Royal Navy The T-13-class minesweeper was wrecked off the coast of Scotland.
SM U-66  Imperial German Navy World War I: The Type U 66 submarine is believed to have struck a mine and sank in the North Sea off the Dogger Bank on or after 3 September with the loss of all 40 crew.
SM UB-32  Imperial German Navy World War I: The Type UB II submarine was lost after 17 September. She may have been bombed and sunk on 22 September by Royal Naval Air Service aircraft.

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  203. ↑ "Perseverance". Uboat.net. Retrieved 16 December 2012.
  204. ↑ "Rosehill". Uboat.net. Retrieved 6 November 2012.
  205. ↑ "St. Dunstan". Uboat.net. Retrieved 29 November 2012.
  206. ↑ "Western Belle (+1917)". Wrecksite. Retrieved 21 February 2021.
  207. ↑ "Europe". Uboat.net. Retrieved 22 December 2012.
  208. ↑ "Hastfen". Uboat.net. Retrieved 21 November 2012.
  209. ↑ "Iriston". Uboat.net. Retrieved 30 September 2012.
  210. ↑ "Leka". Uboat.net. Retrieved 27 December 2012.
  211. ↑ "Louis Bossert". Uboat.net. Retrieved 11 October 2012.
  212. ↑ "Mimosa". Uboat.net. Retrieved 16 December 2012.
  213. ↑ "Nuova Francesca". Uboat.net. Retrieved 19 December 2012.
  214. ↑ "Perseverance". Uboat.net. Retrieved 22 December 2012.
  215. ↑ "S. Espedito". Uboat.net. Retrieved 19 December 2012.
  216. ↑ "Boynton". Uboat.net. Retrieved 16 December 2012.
  217. ↑ "City of Swansea". Uboat.net. Retrieved 6 November 2012.
  218. ↑ "Dinorah". Uboat.net. Retrieved 22 December 2012.
  219. ↑ "Edouard Detaille". Uboat.net. Retrieved 13 October 2012.
  220. ↑ "James Seckar". Uboat.net. Retrieved 22 December 2012.
  221. ↑ "Marceau". Uboat.net. Retrieved 11 October 2012.
  222. ↑ "Paolina". Uboat.net. Retrieved 24 December 2012.
  223. ↑ "Paolina (+1917)". Wrecksite. Retrieved 17 October 2020.
  224. ↑ "Unione Republicaine". Uboat.net. Retrieved 22 October 2012.
  225. ↑ "Acorn". Uboat.net. Retrieved 26 December 2012.
  226. ↑ "Ciro". Uboat.net. Retrieved 9 November 2012.
  227. ↑ "Heraklios". Uboat.net. Retrieved 16 October 2012.
  228. ↑ "Jacqueline". Uboat.net. Retrieved 25 October 2012.
  229. ↑ "Ocean Star". Uboat.net. Retrieved 17 December 2012.
  230. ↑ "Major Warships Sunk in World War 1 1917". World War I. Retrieved 23 February 2013.
  231. ↑ "S.N.A. 3". Uboat.net. Retrieved 2 November 2012.
  232. ↑ "UC 33". Uboat.net. Retrieved 4 December 2012.
  233. ↑ "Deux Jeannes". Uboat.net. Retrieved 22 October 2012.
  234. ↑ "Greltoria". Uboat.net. Retrieved 3 November 2012.
  235. ↑ "Liberte". Uboat.net. Retrieved 22 October 2012.
  236. ↑ "Peuples Freres". Uboat.net. Retrieved 22 October 2012.
  237. ↑ "UC 6". Uboat.net. Retrieved 20 November 2012.
  238. ↑ "Bon Premier". Uboat.net. Retrieved 13 October 2012.
  239. ↑ "Elmsgarth". Uboat.net. Retrieved 14 October 2012.
  240. ↑ "Eugenie Fautrel". Uboat.net. Retrieved 13 October 2012.
  241. ↑ "Kildonan". Uboat.net. Retrieved 4 November 2012.
  242. ↑ "Percy B." Uboat.net. Retrieved 13 October 2012.
  243. ↑ "R 235". Uboat.net. Retrieved 19 October 2012.
  244. ↑ "Sanwen". Uboat.net. Retrieved 30 September 2012.
  245. ↑ "Swan River". Uboat.net. Retrieved 6 October 2012.
  246. ↑ "Amiral Troude". Uboat.net. Retrieved 10 November 2012.
  247. ↑ "Charlsin". Uboat.net. Retrieved 28 December 2012.
  248. ↑ "Drake". Uboat.net. Retrieved 22 October 2012.
  249. ↑ "Heron". Uboat.net. Retrieved 22 October 2012.
  250. ↑ "Midlothian". Uboat.net. Retrieved 19 October 2012.
  251. ↑ "Nicolosa". Uboat.net. Retrieved 19 October 2012.
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