List of shipwrecks in September 1943

The list of shipwrecks in 1943 includes ships sunk, foundered, grounded, or otherwise lost during September 1943.

This is a dynamic list and may never be able to satisfy particular standards for completeness. You can help by adding missing items with reliable sources.

1 September
List of shipwrecks: 1 September 1943
ShipCountryDescription
I-182  Imperial Japanese Navy World War II: The Kaidai-class submarine was depth charged and sunk in the Coral Sea off Espiritu Santo (15°38′S 166°57′E) by USS Wadsworth ( United States Navy). All 101 crew were killed.[1][2]
Nankai Maru  Japan World War II: The coaster was torpedoed and sunk in the Pacific Ocean off the coast of Japan by USS Pompano ( United States Navy).[2]
Strassburg  Germany (Red Cross): World War II: The hospital ship struck a mine in the North Sea off Egmond aan Zee, North Holland, Netherlands and was beached. The ship was torpedoed by aircraft of 236 and 254 Squadrons, Royal Air Force on 20 September and also by HMMTB 617 ( Royal Navy). She was declared a total loss.[3]
V 5502  Kriegsmarine The Vorpostenboot, a former Trygg-class torpedo boat, ran aground on the Norwegian coast. She sank on 6 September during salvage operations.[2]

2 September
For the torpedoing of the German minesweeper M5209 Carl Stangen on this date, see the entry for 23 August 1943.
List of shipwrecks: 2 September 1943
ShipCountryDescription
Fusei Maru  Japan World War II: The cargo ship was torpedoed and sunk in the South China Sea off Formosa by USS Seawolf ( United States Navy).[2]
Hankow Maru  Imperial Japanese Army World War II: Convoy Wewak No. 7: The cargo ship was bombed and sunk at Wewak, New Guinea by North American B-25 Mitchell and Lockheed P-38 Lightning aircraft of the United States Army Air Force. Twenty-three troops and two crew were killed.[4]
HMS LCI(L) 107  Royal Navy The landing craft infantry (large) was lost on this date.[5]
Mutsure  Imperial Japanese Navy World War II: The Etorofu-class escort ship was torpedoed and sunk in the Pacific Ocean off Guam (08°40′N 151°31′E) by USS Snapper ( United States Navy). Forty-six crew were killed.[6][7]
Nagato Maru  Imperial Japanese Army World War II: Convoy Wewak No. 7: The Nagato Maru-class transport was bombed and sunk at Wewak by North American B-25 Mitchell and Lockheed P-38 Lightning aircraft of the United States Army Air Force. Three troops and two crew killed.[4]
Svea Reuter  Sweden World War II: The cargo ship, chartered by the Kriegsmarine, was torpedoed in the Riga Bay by Soviet Ilyushin Il-4 aircraft. Six crew were killed. She was towed to Riga and repaired.[8][9]

3 September
List of shipwrecks: 3 September 1943
ShipCountryDescription
Akama Maru  Japan World War II: The cargo ship was torpedoed and sunk in the Pacific Ocean off the coast of Japan by USS Pompano ( United States Navy).[10]
Heijo Maru  Japan World War II: The auxiliary gunboat was torpedoed and sunk in the Pacific Ocean off Kwajalein (5°25′N 156°37′E) by USS Albacore ( United States Navy). Three crewmen were killed.[11][12]
I-20  Imperial Japanese Navy World War II: The Type C submarine (or possibly I-182) was depth charged and sunk in the Coral Sea off Espiritu Santo (13°10′S 165°28′E) by USS Ellet ( United States Navy). All 101 crew killed.[13]
I-25  Imperial Japanese Navy World War II: The Type B submarine was sunk off Espiritu Santo by USS Ellet ( United States Navy).
Tagonoura Maru  Japan World War II: Convoy 4827: The cargo ship was torpedoed and sunk in the Pacific Ocean off Kyushu by USS Pollack ( United States Navy). Six passengers and one crewman killed. Survivors were rescued by Oki ( Imperial Japanese Navy).[14]
UJ 1202 Frank Dankworh  Kriegsmarine World War II: The submarine chaser was torpedoed and sunk by S-51 ( Soviet Navy) off Finnmark, Norway.[2][15]

4 September
List of shipwrecks: 4 September 1943
ShipCountryDescription
Kozan Maru  Japan World War II: The cargo ship was torpedoed in the South China Sea off Formosa by USS Sunfish ( United States Navy). Nine crewmen and thirteen passengers were killed. The gunboat Chohakusan Maru tried to tow the damaged ship but she ran aground and was abandoned.[2][16][17]
USS LCI(L)-339  United States Navy World War II: The landing craft infantry (large) was sunk by Japanese aircraft off Lae, New Guinea. One crew was killed.[18][19]
HMS LCP(L) 325  Royal Navy The landing craft, personnel (large) was lost on this date.[20]
Yurin Maru  Japan World War II: The sailing vessel was sunk in the Pacific Ocean by USS Tarpon ( United States Navy).[2]
Yusho Maru  Imperial Japanese Navy World War II: The Yusho Maru-class salvage ship struck a mine in Surabaya's North Channel and was taken under tow. She struck a second mine and sunk in the Makassar Strait (05°00′S 119°00′E) on 5 September.[21]

5 September
List of shipwrecks: 5 September 1943
ShipCountryDescription
Cremer  Netherlands The cargo liner ran aground and was wrecked on either St. Bees Island, or Whitsunday Island, Australia and was abandoned.[22]
Dora C  Italy World War II: The tanker was torpedoed and sunk in the Mediterranean Sea by HMS Unshaken ( Royal Navy).[2]
F 421  Kriegsmarine The Type C Marinefahrprahm was sunk by a mine off Gaeta, Italy. There were 15 dead and missing and 17 survivors.[23][24]
F 481  Kriegsmarine The Type C2 Marinefahrprahm was sunk on this date.[23]
F 624  Kriegsmarine The Type C2 Marinefahrprahm foundered on this date.[23]
HMS ML 108  Royal Navy World War II: The Fairmile A motor launch was sunk by a mine in the English Channel. The whole crew was saved.[25][26]
No. 13  Soviet Navy The R Type minesweeper was lost on this date.[27]
No. 110  Soviet Navy The MO-2-class patrol vessel was lost on this date.[28]
R-12  Kriegsmarine World War II: The Type R-2 minesweeper was sunk by a mine off Piran.[29]
Tenkai Maru  Japan World War II: Convoy Wewak No. 8: The cargo ship was torpedoed and sunk in the Pacific Ocean (01°10′N 142°10′E) by USS Swordfish ( United States Navy). Three troops and three crew were killed.[30]
USS YP-279  United States Navy The naval trawler sank in heavy weather off Townsville, Queensland, Australia.[31]

6 September
List of shipwrecks: 6 September 1943
ShipCountryDescription
Angiolina P  Italy World War II: The fishing vessel was sunk in Aléria, Corsica with gunfire by Sportsman ( Royal Navy)[32]
Annan Maru  Japan World War II: The cargo ship was bombed and sunk in the Indian Ocean south of Rangoon, Burma by Consolidated B-24 Liberator aircraft of the United States Tenth Air Force.[2]
Kofuku Maru  Imperial Japanese Navy The transport ship was sunk in a collision with Maoka Maru ( Japan) in the Sea of Japan 20 nautical miles (37 km) south of Sado Island (37°42′N 138°17′E). Her whole crew was rescued by Maoka Maru.[33]
Milan Maru  Japan World War II: The cargo ship was bombed and sunk in the Indian Ocean south of Rangoon, Burma by Consolidated B-24 Liberator aircraft of the United States Tenth Air Force.[2]
HMS Puckeridge  Royal Navy World War II: The Hunt-class destroyer was torpedoed and sunk in the Mediterranean Sea 40 nautical miles (74 km) east of Europa Point, Gibraltar by U-617 ( Kriegsmarine) with the loss of 62 of her 191 crew.[34]
R 93  Kriegsmarine World War II: The Type R-41 minesweeper was sunk by a mine in the English Channel.[35]
R 94  Kriegsmarine World War II: The minesweeper struck a mine and sank in the English Channel.[36]
Maria Luisa B  Italy World War II: The fishing vessel was sunk in Aléria, Corsica with gunfire by Sportsman ( Royal Navy)[32]
Shogen Maru  Japan World War II: The cargo ship was torpedoed and sunk in the Pacific Ocean off Hokkaido (42°13′N 142°00′E) by USS Halibut ( United States Navy). Survivors were rescued by Kiku Maru ( Imperial Japanese Navy).[37]
Tbilisi  Soviet Union World War II: The cargo ship struck a mine and sank in the Kara Sea (72°22′04″N 80°33′01″E) with the loss of two crew.[38]

7 September
List of shipwrecks: 7 September 1943
ShipCountryDescription
Hamidieh  Egypt World War II: The sailing ship was shelled and sunk in the Mediterranean Sea 34 nautical miles (63 km) south of Cape Gata, Cyprus (34°02′N 33°05′E) by U-596 ( Kriegsmarine). All crew survived.[39]
K-12  Soviet Navy World War II: The tug was sunk in the Baltic Sea by Taisto, Tuima, Tuuli, and Jyske ( Finnish Navy).[40]
Krupskaya  Germany World War II: The barge was sunk in the Black Sea by mines dropped by Soviet Ilyushin Il-4 aircraft.[41]
LPT-11  Soviet Navy World War II: The barge was sunk in the Baltic Sea by Taisto, Tuima, Tuuli, and Jyske ( Finnish Navy) while being towed by K-12 ( Soviet Navy).[42]
Maloja   Switzerland World War II: The steamship, on its last voyage, was erroneously sunk in the Mediterranean Sea by ten British aircraft at 16:15 off Cap Revellata, Corsica. Three crew members lost their lives.[43]
USS PT-118  United States Navy World War II: The Elco 80' PT boat ran aground off Vella Lavella and was scuttled.[44]
USS PT-172  United States Navy World War II: The Elco 80' PT boat ran aground off Vella Lavella and was scuttled.[45]
U-760  Kriegsmarine World War II: The Type VIIC submarine was severely damaged by depth charges from a Vickers Wellington aircraft of 179 Squadron, Royal Air Force. She put into Ferrol, Spain, where she was interned on 9 September.[2]
Velella  Regia Marina World War II: The Argo-class submarine was torpedoed and sunk off Salerno (40°07′N 14°50′E) by HMS Shakespeare ( Royal Navy).[46]

8 September
For the loss of the American tanker W. S. Rheem on this date, see the entry for 31 August 1943
List of shipwrecks: 8 September 1943
ShipCountryDescription
Calitea II  Regia Marina World War II: The cargo ship, under charter to the Imperial Japanese Navy as a supply ship, was scuttled by her crew at Kobe, Japan after the Italian government surrendered to the Allies. Raised in 1943, repaired and put into Japanese service as Ikutagawa Maru.[47]
Etna  Regia Marina World War II: The incomplete Etna-class cruiser, only 84% finished, was scuttled in Zaule Bay near Trieste. Raised by the Germans.[48]
H 6  Regia Marina World War II: The Holland 602 type submarine was bombed and sunk at La Maddalena, Sicily by Allied aircraft. Raised and scrapped.[46]
Hakutetsu Maru No. 13  Japan World War II: The cargo ship was torpedoed and sunk in the Pacific Ocean off Hollandia, New Guinea by USS Drum ( United States Navy).[2]
HMS LCT 624  Royal Navy The LCT-4-class landing craft tank was lost in the Mediterranean Sea.[49]
M 3810  Kriegsmarine World War II: The auxiliary minesweeper was sunk in the English Channel off Fécamp, Seine-Inférieure, France by HMS MTB 211, HMS MTB 249 and HMS MTB 255 (all  Royal Navy).[2]
M 3811 Clara  Kriegsmarine World War II: The naval drifter/minesweeper was sunk in the English Channel off Fécamp by HMS MTB 211, HMMTB 249 and HMMTB 255 (all  Royal Navy).[2]
M 3816 Sursom Corda  Kriegsmarine World War II: The naval drifter/minesweeper was sunk in the English Channel off Fécamp by HMS MTB 211, HMMTB 249 and HMMTB 255 (all  Royal Navy).[2]
HMS MTB 77  Royal Navy World War II: The Vosper 72'-class motor torpedo boat was bombed and sunk off Vigo, Spain by German aircraft.[50]
Rauenthaler  Germany World War II: The cargo ship was lost in a collision with Signal ( Germany) off Trondheim, Norway whilst in a convoy.[2][51]
U-983  Kriegsmarine The Type VIIC submarine collided in the Baltic Sea north of Loba (54°46′N 17°14′E) with the submarine U-988 ( Kriegsmarine) and sank with the loss of five of her 43 crew.[52]
Vesuvio  Regia Marina World War II: The incomplete Etna-class cruiser, only 60% finished, was scuttled in Zaule Bay near Trieste. Raised by the Germans.[53]

9 September
List of shipwrecks: 9 September 1943
ShipCountryDescription
Ammiraglio des Geneys  Regia Marina World War II: The Pisani-class submarine was scuttled at Pola.[46]
Antonio Bajamonti  Regia Marina World War II: The Osvetnik-class submarine was scuttled at La Spezia.
Antonio da Noli  Regia Marina World War II: The Navigatori-class destroyer struck a mine and sank in the Strait of Bonifacio. 223 crew were killed.[54][55]
Aradam  Regia Marina World War II: The Adua-class submarine was bombed and sunk at Genoa by Allied aircraft.[46]
Berenice  Regia Marina World War II: The Gabbiano-class corvette was shelled and sunk by German batteries at Trieste.[56]
Buccari  Regia Marina World War II: The Fasana-class minelayer was scuttled at La Spezia.[57]
Carlotto  Regia Marina World War II: The gunboat was scuttled at Shanghai, China.[2]
Cattaro  Regia Marina World War II: The auxiliary cruiser was scuttled at "Santa Margharita".
Conte Verde  Italy World War II: The ocean liner (a.k.a. Teikyo Maru) was scuttled in the Huangpu River at Shanghai by her Italian crew. Raised by the Japanese.[58]
Euterpe  Regia Marina World War II: The Gabbiano-class corvette was scuttled at La Spezia. Raised, repaired and put into Kriegsmarine service as UJ-2228.[59]
F 366  Kriegsmarine World War II: The Marinefährprahm was sunk at Bastia, Corsica, France by Aliseo and Cormorano (both  Regia Marina). One crew was killed.[2][60]
F 387  Kriegsmarine World War II: The Marinefährprahm was sunk at Bastia by Aliseo and Cormorano (both  Regia Marina). There was no casualty.[2][61]
F 459  Kriegsmarine World War II: The Marinefährprahm was sunk at Bastia by Aliseo and Cormorano (both  Regia Marina).[2]
F 612  Kriegsmarine World War II: The Marinefährprahm was sunk at Bastia by Aliseo and Cormorano (both  Regia Marina).[2]
F 623  Kriegsmarine World War II: The Marinefährprahm was sunk at Bastia by Aliseo and Cormorano (both  Regia Marina).[2]
FR 22  Regia Marina World War II: The Chacal-class destroyer was scuttled at La Spezia.[62]
FR 51  Regia Marina World War II: The Elan-class corvette was scuttled at La Spezia. Raised, repaired and put in Kriegsmarine service as SG 23, later UJ-2231.[63]
Generale Achille Papa  Regia Marina World War II: The Generali-class torpedo boat was scuttled at La Spezia. Raised, repaired and put in Kriegsmarine service as SG 20.[63]
Generale Antonio Cascino  Regia Marina World War II: The Generali-class torpedo boat was scuttled at La Spezia.[64]
Generale Carlo Montanari  Regia Marina World War II: The Generali-class torpedo boat was scuttled at La Spezia. Raised by the Germans but not repaired.[64]
Ghibli  Regia Marina World War II: The Animoso-class torpedo boat was scuttled at La Spezia. Raised by the Germans, but not repaired.[65]
Giovanni Bausan  Regia Marina World War II: The Pisani-class submarine was scuttled at Pula.[46]
Koyo Maru  Japan World War II: The cargo ship was torpedoed and sunk in the Pacific Ocean off Honshu by USS Harder ( United States Navy).[66]
USS LCT-366  United States Navy The LCI-1-class landing craft tank sank in heavy weather in the Gulf of Alaska south of Kodiak, Territory of Alaska, at 53°01′N 152°00′E.[67][68]
HMS LCT 391  Royal Navy The Mk 3 landing craft tank was sunk by coastal gunfire during the landing at Salerno. Three of the troops above were killed.[69][70]
HMS LCT 572  Royal Navy The LCT-4-class landing craft tank was lost in the Mediterranean Sea.[71]
HMS LCT 626  Royal Navy The LCT-4-class landing craft tank was lost in the Mediterranean Sea.[72]
Larchbank  United Kingdom World War II: The Inverbank-class cargo ship was torpedoed and sunk in the Indian Ocean 200 nautical miles (370 km) west of Cape Cormorin (07°38′N 74°00′E) by I-27 ( Imperial Japanese Navy). Six gunners and 40 crew were killed, 30 survivors were rescued by Tahania ( United Kingdom) and Panaman ( United States).[73]
Lepanto  Regia Marina World War II: The gunboat, a former Azio-class minelayer was scuttled at Shanghai, China. Raised, repaired and put in Imperial Japanese Navy service as Okitsu.[74]
Lira  Regia Marina World War II: The Spica-class torpedo boat was scuttled at La Spezia. Raised, repaired and put in Kriegsmarine service as TA49.[75]
MAS 424  Regia Marina World War II: The MAS 424-class MAS boat was scuttled at Toulon, Var, France. Raised, repaired and put into Kriegsmarine service asS 624.[76]
MAS 427  Regia Marina World War II: The MAS 423-class MAS boat was scuttled at Pula. Raised, repaired and put in Kriegsmarine service as S 604.[77]
MAS 437  Regia Marina World War II: The MAS 423-class MAS boat was scuttled at Toulon, France. Raised, repaired and put in Kriegsmarine service as S 625.[77]
MAS 525  Regia Marina World War II: The MAS 501-class MAS boat was scuttled at La Spezia. Raised, repaired and put in Kriegsmarine service as S 508.[78]
MAS 553  Regia Marina World War II: The MAS 552-class MAS boat was scuttled at La Spezia. Raised, repaired and put in Kriegsmarine service as SA 14.[79]
MS 16  Regia Marina World War II: The MS 11-class MS boat was scuttled at Voltri. Raised, repaired and put in Kriegsmarine service as SA 1.[80]
MS 32  Regia Marina World War II: The MS 11-class MS boat was scuttled at Viareggio.[80]
MS 34  Regia Marina World War II: The MS 11-class MS boat was scuttled at Bocca di Magra. Raised, repaired and put in Kriegsmarine service as SA 2.[80]
MS 36  Regia Marina World War II: The MS 11-class MS boat was scuttled at La Spezia. Raised, repaired and put in Kriegsmarine service as SA 3.[80]
MS 41  Regia Marina World War II: The Lursen E boat was scuttled at Molfalcone. Raised, but not repaired.[81]
MS 51  Regia Marina World War II: The MS 51-class MS boat was scuttled at Bocche di Marga. Raised, repaired and put in Kriegsmarine service as SA 4.[82]
HMIS MTB 284  Royal Indian Navy World War II: The Vosper 72'-class motor torpedo boat was lost as cargo when Larchbank ( United Kingdom) was sunk by I-27 ( Imperial Japanese Navy) in the Indian Ocean (07°38′N 74°00′E).[83]
HMIS MTB 285  Royal Indian Navy World War II: The Vosper 72'-class motor torpedo boat was lost as cargo when Larchbank ( United Kingdom) was sunk by I-27 ( Imperial Japanese Navy) in the Indian Ocean (07°38′N 74°00′E).[84]
Murena  Regia Marina World War II: The Flutto-class submarine was scuttled at La Spezia, Italy. Raised, repaired and put in Kriegsmarine service as UIT-16.[85]
USS Nauset  United States Navy World War II: The Navajo-class fleet tug was bombed and sunk in the Gulf of Salerno by Luftwaffe aircraft with the loss of 18 of her 113 crew.
Nicolò Zeno  Regia Marina World War II: The Navigatori-class destroyer was scuttled at La Spezia, Italy.[86]
Pelagose  Regia Marina World War II: The Fasana-class minelayer was shelled and sunk off Genoa by German artillery.[87]
Persefone  Regia Marina World War II: The Gabbiano-class corvette was scuttled at La Spezia. Raised, repaired and put in Kriegsmarine service as UJ 2227.[59]
Procione  Regia Marina World War II: The Orsa-class torpedo boat was scuttled at La Spezia.[88]
R-7 and R-13  Kriegsmarine World War II: The Type R-2 minesweepers were scuttled at Salerno, Italy.[29]
R 240 Vulcania  Regia Marina World War II: The auxiliary minesweeper was torpedoed and sunk in the Adriatic Sea by S 54 and S61 (both  Kriegsmarine).[2]
RD 13  Regia Marina World War II: The RD-class minesweeper was scuttled at Viareggio.[89]
Roma  Regia Marina
Roma

World War II: The Littorio-class battleship was sunk in the Mediterranean Sea off Asinara by a Fritz X launched by a Dornier Do 217 of the Luftwaffe with the loss of 1,393 of her 2,021 crew.

Silvano  Italy World War II: The cargo ship was scuttled at Naples, Italy. Wreck raised in 1944 and scrapped.[90]
Sirena  Regia Marina World War II: The Sirena-class submarine was scuttled at La Maddalena, Sicily.[46]
Taranto  Regia Marina World War II: The Magdeburg-class cruiser was scuttled at La Spezia. Later raised by the Germans, and sunk twice more. Scrapped in 1946-47.
Toni II  Italy World War II: The severely damaged tanker was scuttled at Naples. She was raised in 1946, repaired and returned to service.[91]
Ugolino Vivaldi  Regia Marina World War II: The Navigatori-class destroyer was shelled by German shore batteries and bombed by German aircraft off La Maddalena, sinking the next day. 60 of her 280 crew did not survive the battle, the sinking or the ordeal at sea that followed. A part of the survivors were rescued by HMS Sportsman ( Royal Navy).[2][92]
UJ 2203 Austral  Kriegsmarine World War II: The naval trawler/submarine chaser was sunk at Bastia by Aliseo and Cormorano (both  Regia Marina).[2]
UJ 2219 Insuma  Kriegsmarine World War II: The armed yacht/submarine chaser was sunk at Bastia by Aliseo and Cormorano (both  Regia Marina).[2]
VAS 207 and VAS 225  Regia Marina World War II: The VAS 201-class submarine chasers were scuttled at Bocca di Magra.[93]
VAS 234  Regia Marina World War II: The VAS 231-class submarine chaser was sunk by gunfire from R-212 and R-215  Kriegsmarine off Gorgona Island. Contrammiraglio Federico Martinengo, commander of the Italian Navy ASW forces, was the only killed in the action.[94][95]
VAS 236  Regia Marina World War II: The VAS 231-class submarine chaser was scuttled at Portovenere. Raised, repaired and put into Kriegsmarine service as RA 261.[94]
VAS 244  Regia Marina World War II: The VAS 231-class submarine chaser was sunk by Allied aircraft off Salerno.[94]
Volframio  Regia Marina World War II: The Acciaio-class submarine was scuttled at La Maddalena. Raised by the Germans.[46]

10 September
List of shipwrecks: 10 September 1943
ShipCountryDescription
HMS Abdiel  Royal Navy World War II: The Abdiel-class minelayer struck a mine and sank at Taranto, Apulia, Italy (40°29′N 17°15′E) with the loss of 151 of the 276 people on board.[34]
Antonio Pigafetta  Regia Marina World War II: The Navigatori-class destroyer was scuttled at Fiume, Italy. Raised, repaired and put into Kriegsmarine service as TA44.[96]
Argo  Regia Marina World War II: The Argo-class submarine was scuttled at Monfalcone, Italy.[46]
DB-2, DB-3, DB-19, DB-22 and DB-34  Soviet Navy The No. 1-class landing boats were lost on this date.[97]
F 478  Kriegsmarine The Type C2 Marinefahrprahm was scuttled off Taranto, Italy, after an Italian cruiser was seen and the whole crew was rescued by S 54 and S61 (both  Kriegsmarine).[23][98]
FC 45 Fortis  Kriegsmarine The naval trawler was lost on this date.[99]
Insidioso  Regia Marina World War II: The Indomito-class torpedo boat was scuttled by her crew at Pola, Italy. She was refloated an repaired by the Germans and placed in service as Wildfang ( Kriegsmarine).[100]
No. 064  Soviet Navy The MO-4-class submarine chaser was sunk on this date.[101]
No. 71  Soviet Navy The G-5-class motor torpedo boat was lost on this date.[102]
No. 122  Soviet Navy The G-5-class motor torpedo boat was lost on this date.[102]
Piero Foscari  Regia Marina World War II: The auxiliary cruiser was sunk at Castiglioncello, Italy, by German ships. One crew was killed.
RTShch-104  Soviet Navy WThe K-15/M-17-class river minesweeping launch was sunk on this date.[103]
SKA-025  Soviet Navy World War II: The torpedo boat was sunk in the Black Sea by German action off the Kuban coast.[2]
SKA-032  Soviet Navy World War II: The torpedo boat was sunk in the Black Sea by German action off the Kuban coast.[2]
SKA-084  Soviet Navy World War II: The torpedo boat was sunk in the Black Sea by German action off the Kuban coast.[2]
STS-124  Soviet Navy World War II: The G-5-class torpedo boat was sunk in the Black Sea by German action off the Kuban coast.[2]
STS-125  Soviet Navy World War II: The torpedo boat was sunk in the Black Sea by German action off the Kuban coast.[2]
T8  Regia Marina World War II: The T-class torpedo boat was sunk in the Adriatic Sea northwest of Dubrovnic by Luftwaffe aircraft.[104]
VAS 208  Regia Marina World War II: The submarine chaser was shelled and sunk at Piombino by German shore-based artillery.[2]
VAS 214  Regia Marina World War II: The submarine chaser was shelled and sunk at Piombino by German shore-based artillery.[2]
VAS 219  Regia Marina World War II: The submarine chaser was shelled and sunk at Piombino by German shore-based artillery.[2]
VAS 220  Regia Marina World War II: The submarine chaser was shelled and sunk at Piombino by German shore-based artillery.[2]
VAS 247  Regia Marina World War II: The VAS 231-class submarine chaser was sunk by a Kriegsmarine Marinefährprahm off Civitavecchia.[94]
W-16  Imperial Japanese Navy World War II: The No.13-class minesweeper was bombed and sunk in Makassar Strait south of Makassar, Netherlands East Indies (06°08′S 119°20′E) by Consolidated B-24 Liberator aircraft of the United States Fifth Air Force.[105]

11 September
List of shipwrecks: 11 September 1943
ShipCountryDescription
Anke  Germany World War II: The cargo ship was torpedoed and sunk in the Norwegian Sea off Trondheim, Norway by HNoMS MTB 618 and HNoMS MTB 627 (both  Royal Norwegian Navy).[106][107]
Aurora  Regia Marina World War II: The gunboat was sunk off Ancona by S 61, and S 64 (both ( Kriegsmarine)).[108]
Conte di Savoia  Italy World War II: The ocean liner was scuttled at Malamocco, Veneto. She was refloated 16 October 1945 but deemed uneconomic to repair and scrapped in 1950 at Monfalcone, Friuli-Venezia Giulia.[109]
Giuseppe La Masa  Regia Marina World War II: The Giuseppe La Masa-class destroyer was scuttled at Naples.[110]
Hokusho Maru  Japan World War II: The cargo ship was torpedoed and sunk off Nauru Island (0°28′N 166°52′E) by USS Narwhal ( United States Navy), taking down 32 of her crew.[2][111]
Humanitas  Italy World War II: The cargo ship was torpedoed and damaged in the Tyrrhenian Sea off Corsica by HNLMS Dolfijn ( Royal Netherlands Navy). She was declared a total loss.[2]
Impetuoso  Regia Marina World War II: The Animoso-class torpedo boat was scuttled in Polensa Bay.[112]
India  Norway World War II: The tanker was shelled and sunk in the South Pacific Ocean by Michel ( Kriegsmarine) while bounded from Talara, Peru to Sydney, Australia. Forty-one crewmen were killed.[113]
USS LCT-71  United States Navy The LCT-1-class landing craft tank sank in heavy weather in the Gulf of Alaska south of Kodiak, Territory of Alaska, at 53°38′N 146°05′E.[67][114]
Leopardi  Italy World War II: The troopship was torpedoed and sunk in the Adriatic Sea off Venice by S 54 and S 61 (both  Kriegsmarine).[2]
MAS 431  Regia Marina World War II: The MAS 423-class MAS boat was scuttled at Split, Yugoslavia. Raised, repaired and put into Kriegsmarine service as S 603.[77]
No. 21  Soviet Navy The G-5-class motor torpedo boat was lost on this date.[102]
No. 55  Soviet Navy The G-5-class motor torpedo boat was lost on this date.[102]
No. 084  Soviet Navy The MO-4-class submarine chaser was sunk on this date.[101]
No. 91  Soviet Navy The G-5-class motor torpedo boat was lost on this date.[102]
No. 112  Soviet Navy The G-5-class motor torpedo boat was lost on this date.[102]
No. 125  Soviet Navy The G-5-class motor torpedo boat was lost on this date.[102]
Partenope  Regia Marina World War II: The Spica-class torpedo boat was scuttled at Naples.[115]
Pegaso  Regia Marina World War II: The Orsa-class torpedo boat was scuttled in Polensa Bay.[88]
Quintino Sella  Regia Marina World War II: The Sella-class destroyer was sunk off Venice by S 61, and S 54 (both ( Kriegsmarine)).[116]
USS Rowan  United States Navy World War II: Operation Avalanche: The Benham-class destroyer was torpedoed and sunk in the Mediterranean Sea off Salerno, Italy by a Kriegsmarine E-boat with the loss of 202 of her 273 crew.
USS Savannah  United States Navy
USS Savannah.

World War II: Operation Avalanche: The Brooklyn-class cruiser was struck by a Fritz X bomb and severely damaged with the loss of 197 of her 868 crew. She sailed to Malta for temporary repairs. After permanent repairs in the United States, she re-entered service in September 1944.

S 46  Kriegsmarine World War II: The Type 1939/40 E-boat was sunk in the Black Sea off Feodosia, Soviet Union during a Soviet air attack when strafing detonated one of her torpedoes. Two crew were killed.[2][117][118]
T 6  Regia Marina World War II: The T-class torpedo boat was scuttled at Cesenatico.[104]
TA11  Kriegsmarine World War II: The La Melpomène-class torpedo boat was sunk by Aliseo and Cormorano (both  Regia Marina) and Italian tanks at Elba (42°55′N 10°32′E).[119]
UJ-1217  Kriegsmarine World War II: The submarine chaser was torpedoed and sunk in Syltefjorden (70°38′N 30°26′E) by M-7 ( Soviet Navy). 29 of her 42 crewmen were killed.[120][121]
VAS 208, VAS 214,
VAS 219 and VAS 220		  Regia Marina World War II: The VAS 205-class submarine chasers were shelled and sunk by German coastal batteries off Piombino.[93]
X5, X6, X7, X8 and X9  Royal Navy World War II: Operation Source: The midget submarines were all expended in attacks on Lützow, Scharnhorst and Tirpitz (all  Kriegsmarine) in Kåfjord and Langefjord, Norway. Of the 15 crew, nine were killed and six taken as prisoners of war.[34]
Yoko Maru  Japan World War II: The cargo ship was torpedoed and sunk in the Pacific Ocean south of Mikura Jima (33°48′N 139°37′E) by USS Harder ( United States Navy). Eight crewmen were killed.[66][122]

12 September
List of shipwrecks: 12 September 1943
ShipCountryDescription
Ametista  Regia Marina World War II: The Sirena-class submarine was scuttled off Ancona.[46]
Fujikawa Maru  Japan World War II: The cargo ship was torpedoed and sunk in the Pacific Ocean by USS Permit ( United States Navy).[2]
HMS LCP(L) 316  Royal Navy The landing craft, personnel (large) was lost on this date.[20]
HMS LCP(R) 879  Royal Navy The landing craft, personnel (ramped) was lost on this date.[123]
HMS LCV 597  Royal Navy The landing craft vehicle was lost on this date.[124]
MAS 518  Regia Marina World War II: The MAS 501-class MAS boat was scuttled at Venice.[78]
No. 171  Soviet Navy The G-5-class motor torpedo boat was lost on this date.[102]
NM 09 Johann Kaptinger  Kriegsmarine The Polarstern-class naval whaler was sunk in a collision off Bodo.[2][125]
USS Navajo  United States Navy World War II: The Navajo-class fleet tug was torpedoed and sunk in the Pacific Ocean 14°58′35″S 169°17′57″E by I-39 ( Imperial Japanese Navy) with the loss of seventeen of her 80 crew.
Serpente  Regia Marina World War II: The Argonauta-class submarine was scuttled off Ancona.[46]
Shonan Maru  Japan World War II: The transport was bombed and sunk in the Paramushiro Strait by Consolidated B-24 Liberator and North American B-25 Mitchell aircraft of the United States Eleventh Air Force. Later salvaged.[126]
Topazio  Regia Marina World War II: The Sirena-class submarine was sunk in the Mediterranean Sea off Sicily by a Bristol Bisley aircraft of 13 Squadron, Royal Air Force with all 49 hands.[2][127]
U-617  Kriegsmarine World War II: The Type VIIC submarine ran aground off Melilla, Spain (35°38′N 3°27′W) whilst under attack by Lockheed Hudson aircraft of 48 and 233 Squadrons, Royal Air Force and Fairey Swordfish aircraft of 833 and 886 Squadrons, Fleet Air Arm. All 49 crew survived the attack. U-617 was shelled and sunk by HMS Hyacinth ( Royal Navy) and HMAS Wollongong ( Royal Australian Navy).[128]
UJ 1217 Star XXII  Kriegsmarine The submarine chaser/naval whaler was lost on this date.[129]

13 September
List of shipwrecks: 13 September 1943
ShipCountryDescription
FR 114  Regia Marina World War II: The Requin-class submarine was scuttled in a shipyard in Castellemmare di Stabia.[130]
Fort Babine  United Kingdom World War II: The Fort ship was bombed and sunk in the Atlantic Ocean 250 nautical miles (460 km) southwest of Cape Finisterre, Spain (41°31′N 14°39′W) by Focke-Wulf Fw 200 aircraft of I Staffeln, Kampfgeschwader 40, Luftwaffe.[2][131]
HMHS Newfoundland  United Kingdom World War II: The hospital ship was struck by a Henschel Hs 293 glide bomb in the Mediterranean Sea 40 nautical miles (74 km) off Salerno, Italy with the loss of 21 of her crew. The patients and surviving crew on board were rescued by USS Mayo ( United States Navy). She was scuttled the next day by USS Plunkett ( United States Navy).
Terra Nova  United Kingdom The barque was damaged by ice and sank in the Atlantic Ocean off the southwest tip of Greenland. Her crew were rescued by USCGC Southwind ( United States Navy).
HMS Uganda  Royal Navy World War II: Operation Avalanche: The Crown Colony-class cruiser was struck by a Fritz X glide bomb and severely damaged off Salerno, Sicily, Italy. She was towed to Malta by USS Narragansett ( United States Navy). Following temporary repairs, she sailed to Charleston, South Carolina for permanent repairs. Transferred to the Royal Canadian Navy whilst under repair, she entered service as HMCS Uganda on 21 October 1944.
Yamato Maru  Japan World War II: Convoy No. 195: The cargo liner was torpedoed and sunk in the East China Sea (30°18′N 123°35′E) by USS Snook ( United States Navy). Twenty-nine passengers and four crewmen were killed.[132]

14 September
List of shipwrecks: 14 September 1943
ShipCountryDescription
Bramora  Norway World War II: The tanker was torpedoed and sunk in the Indian Ocean south west of Chagos Island (6°10′N 67°37′E) by I-10 ( Imperial Japanese Navy) with the loss of all 40 crew, who may have been massacred.[133]
Bushrod Washington  United States World War II: The Liberty ship was bombed and set on fire at Salerno, Italy by a German Glide Bomb dropped by a Luftwaffe aircraft with the loss of seven lives. She blew up and sank the next day.[2][134][135]
Giuseppe Sirtori  Regia Marina World War II: The Giuseppe Sirtori-class torpedo boat was heavily damaged by German aircraft off Corfu and beached. She was blown up by her crew on 25 September.[136]
Grotte de Bethlehem Vichy France World War II: The fishing trawler was sunk in the Mediterranean Sea by HMS Upstart ( Royal Navy). Her crew were allowed to take to the lifeboats.[2]
H6  Regia Marina World War II: Seized by the Germans after Italy's surrender to the Allies, the H-class submarine was sunk by German forces at Bonifacio, Corsica.[137]
James W. Marshall  United States World War II: The Liberty ship was bombed and sunk in the Mediterranean Sea off Salerno with the loss of 63 lives.[2] She was subsequently salvaged and sunk as a blockship in June 1944.
Katsonis  Hellenic Navy World War II: The Katsonis-class submarine was sunk in the Aegean Sea off Skiathos by UJ-2010 ( Kriegsmarine).
USS LCT-19  United States Navy World War II: The LCI-1-class landing craft tank was bombed and sunk off Salerno by a Luftwaffe aircraft.[138]
M 3410 Waalrus  Kriegsmarine World War II: The minesweeper was torpedoed and sunk in the North Sea off IJmuiden, North Holland, Netherlands by Royal Navy motor torpedo boats.[2]
USS PT-219  United States Navy World War II: The Higgins 78-foot (23.8 m) patrol torpedo boat sank in Casco Cove (52°49′00″N 173°10′15″E) in Massacre Bay on the coast of Attu Island in the Aleutian Islands during a storm.[139][140][141]
TK-95 Sovetskogo Soyuza Fedya Fomin  Soviet Navy World War II: The G-5-class motor torpedo boat was sunk by M 22 ( Kriegsmarine) in the Baltic Sea. Three crewmen were taken as prisoners of war.[142]
Torpille Vichy France World War II: The fishing trawler was sunk in the Mediterranean Sea by HMS Upstart ( Royal Navy). Her crew were allowed to take to the lifeboats.[2]
HMS Warspite  Royal Navy World War II: The Queen Elizabeth-class battleship was struck by a Fritz X glide bomb off Altavilla Silentina, Italy and was severely damaged. She was towed to Malta for temporary repairs, arriving on 19 September. She departed under tow for Gibraltar on 12 November. She sailed to HMNB Rosyth in March 1944. Repairs were completed in June.

15 September
List of shipwrecks: 15 September 1943
ShipCountryDescription
FR 115  Regia Marina World War II: The Requin-class submarine was scuttled at Genoa.[130]
USS LCT-241  United States Navy World War II: The LCI-1-class landing craft tank was bombed and sunk off Salerno, Italy.[143]
Ro-101  Imperial Japanese Navy World War II: The Ro-100-class submarine was depth charged, shelled and sunk in the Coral Sea east of San Cristobal Island (10°57′S 163°56′E) by USS Saufley ( United States Navy) and a United States Navy Consolidated PBY Catalina of Squadron VP-23. Lost with all 50 hands.[144]
SAT 20 West  Kriegsmarine World War II: The heavy gun carrier was sunk by Soviet bombers in the Baltic Sea.[145][8]
V 1515 Rothienbaum  Kriegsmarine World War II: The Vorpostenboot was sunk at La Pallice, Charente-Maritime, France during an American air raid.[2]

16 September
List of shipwrecks: 16 September 1943
ShipCountryDescription
Graziella  Norway World War II: The cargo ship was torpedoed and sunk in the North Sea off the Kvassheim Lighthouse by Bristol Beaufighter aircraft of 489 Squadron, Royal New Zealand Air Force. All crew survived.[2][146]
Giuseppe Dezza  Regia Marina World War II: The Rusalina Pilo-class torpedo boat was scuttled at Fiume. She was raised and repaired by the Germans and put in service as TA 35 ( Kriegsmarine).[75]
Heisternest  Kriegsmarine World War II: The Filin-class guard ship was bombed and sunk by US aircraft at Nantes, Loire Atlantique, France.
R 19  Kriegsmarine World War II: The Type R 17 minesweeper was sunk at Nantes during an American air raid.[2][147]
M 4461 Hirondelle III  Kriegsmarine World War II: The minesweeper was sunk at La Pallice, Charente-Maritime, France during an American air raid.[2]
Seikai Maru  Imperial Japanese Navy World War II: The auxiliary gunboat was sunk by a mine in Kavieng Harbour, New Guinea.[148]
Sperrbrecher 16 Tulane  Kriegsmarine World War II: The Sperrbrecher was sunk at La Pallice during an American air raid.[2]
Sperrbrecher 184 Bernisse  Kriegsmarine World War II: The Sperrbrecher was sunk at Nantes during an American air raid.[2]
TA2  Kriegsmarine World War II: The torpedo boat was sunk at Nantes during an American air raid.[2]
TA4  Kriegsmarine World War II: The incomplete Le Fier-class torpedo boat was sunk at Nantes during an American air raid.[2][75]
Uisko  Finnish Navy World War II: Continuation War: The auxiliary patrol ship was torpedoed and sunk in the Gulf of Finland north of Keri Lighthouse, Keri Island, Estonia, by a Soviet Ilyushin Il-4 aircraft. 18 killed, 2 crewmen rescued.[149][150][8]

17 September
List of shipwrecks: 17 September 1943
ShipCountryDescription
Calbrone, Cavalletta,
Cicala, Clava,
Grillo, Libellula,
Lucciola and Zagaglia		  Regia Marina World War II: The incomplete Gabbiano-class corvettes, captured by the Germans on 13 September, were scuttled in a yard at Castellammare di Stabia when the Germans withdrew from the area.[56]
M 3600 Jacques Coer  Kriegsmarine World War II: The naval trawler/minesweeper (286 GRT, 1907) struck a mine and sank in the North Sea off Ostend, West Flanders, Belgium.[2]
M 3604 Motor I  Kriegsmarine World War II: The naval drifter/minesweeper (127 GRT, 1918) struck a mine and sank in the North Sea off Ostend.[2]
M 3606 Oceaan VI  Kriegsmarine World War II: The naval drifter/minesweeper (162 GRT, 1937) was lost on this date.[99]
Paula  Germany World War II: The cargo ship was sunk in the Aegean Sea by HMS Eclipse, HMS Faulknor (both  Royal Navy) and Vasilissa Olga ( Greece Navy).[2]
Pluto  Germany World War II: The cargo ship was sunk in the Aegean Sea by HMS Eclipse, HMS Faulknor (both  Royal Navy) and Vasilissa Olga ( Greece Navy).[2]
USS Pompano  United States Navy World War II: The Porpoise-class submarine was attacked by a Japanese seaplane in the Pacific Ocean off Shiriya. Depth charges dropped by Ashizaki ( Imperial Japanese Navy) the next day brought up more oil. Although some sources claim this attack sunk her,[151] others state that she was lost to a mine off Honshū, Japan on 27 September.[2]
USS PT-136  United States Navy World War II: The Elco 80' PT boat ran aground off Malai Island in the Vitiaz Strait (05°55′S 148°01′E) and was scuttled.[152]

18 September
List of shipwrecks: 18 September 1943
ShipCountryDescription
Chowa Maru  Japan World War II: The cargo ship was torpedoed and sunk in the Pacific Ocean by USS S-42 ( United States Navy).[2]
Francesco Rismondo  Regia Marina World War II: The Osvetnik-class submarine was scuttled at Bonifacio, Corsica, France.
Kansai Maru  Imperial Japanese Army World War II: Convoy O-602A: The transport ship was torpedoed in the Bismarck Sea (00°41′N 146°28′E) by USS Scamp ( United States Navy), sinking early on 19 September. Twenty-three troops and one crewman were killed. Survivors were rescued by CH-16 and CH-28 (both  Imperial Japanese Navy).[153]
MS 45  Regia Marina World War II: The Lursen E-boat was scuttled at Cattolica.[81]
UJ 2104  Kriegsmarine World War II: The submarine chaser/naval whaler was shelled and damaged in the Bay of Stampalia by HMS Eclipse, HMS Faulknor (both  Royal Navy) and Vasilissa Olga ( Hellenic Navy). She was scuttled by her crew at 36°34′N 26°30′E.[154]
Yowa Maru  Japan World War II: The cargo ship was torpedoed and sunk in the East China Sea north of Formosa by USS Trigger ( United States Navy).[155]

19 September
List of shipwrecks: 19 September 1943
ShipCountryDescription
HMS BYMS 2019  Royal Navy World War II: The YMS-1-class minesweeper struck a mine and was beached off Crotone, Italy.[156]
Fort Longueuil  United Kingdom World War II: The Fort ship was torpedoed and sunk in the Indian Ocean south west of the Chagos Archipelago (approximately 10°S 68°E) by U-532 ( Kriegsmarine) with the loss of 57 of her 59 crew.[157]
Kachisan Maru  Japan World War II: The cargo ship was torpedoed and sunk in the Pacific Ocean off Honshu by the submarine USS Harder ( United States Navy).[66]
Koso Maru  Japan World War II: Convoy No. 192: The cargo ship was driven ashore at Amami-O-Shima by a typhoon. She was refloated and returned to service.[158]
Kyokuyo Maru  Japan World War II: Convoy No. 192: The cargo ship was driven ashore and wrecked at Amami-O-Shima (28°20′N 129°30′E) by a typhoon.[158]
MS 12 and MS 23  Regia Marina World War II: The MS 11-class E-boats were sunk at Stampalia by German aircraft.[80]
Taketoyo Maru  Japan World War II: Convoy MI-12: The tanker was driven ashore at Amami-O-Shima by a typhoon. Refloated and returned to service.[158]
Tango Maru  Japan World War II: Convoy MI-12: The cargo ship was driven ashore at Amami-O-Shima by a typhoon. Refloated and returned to service.[158]
U-341  Kriegsmarine World War II: The Type VIIC submarine was depth charged and sunk in the Atlantic Ocean (58°34′N 25°30′W) by a Consolidated B-24 Liberator aircraft of 10 Squadron, Royal Canadian Air Force with the loss of all 50 crew.[159]

20 September
List of shipwrecks: 20 September 1943
ShipCountryDescription
Frederick Douglass  United States World War II: Convoy ON 202: The Liberty ship was torpedoed and damaged in the Atlantic Ocean (57°03′N 28°08′W) by U-238 ( Kriegsmarine) and was abandoned by her crew. All 71 people on board were rescued by Rathlin ( United Kingdom). Frederick Douglass was later torpedoed and sunk by U-645 ( Kriegsmarine).[160][161]
Katsura Maru  Japan World War II: The cargo ship was torpedoed and sunk in the Pacific Ocean (49°05′N 141°45′E) by USS S-28 ( United States Navy). Five crewmen were killed.[2][162]
HMS Lagan  Royal Navy World War II: Convoy ON 202: The River-class frigate was torpedoed and damaged in the Atlantic Ocean 57°09′N 27°28′W by U-270 ( Kriegsmarine) with the loss of 28 crew. She was towed to the United Kingdom by Destiny ( United Kingdom) but was declared a constructive total loss.[34][163]
No. 54  Soviet Navy The G-5-class motor torpedo boat was lost on this date.[102]
Spalato  Regia Marina World War II: The incomplete Split-class destroyer was sunk at dock in Split, Yugoslavia by Yugoslav Partizans. Later salvaged by the Germans.[164]
HMCS St. Croix  Royal Canadian Navy World War II: Convoy ON 202: The Town-class destroyer was torpedoed and sunk in the Bay of Biscay (57°30′N 31°30′W) by U-305 ( Kriegsmarine) with the loss of 148 of her 229 crew. The 81 survivors were rescued by HMS Itchen ( Royal Navy), but 80 of them would be killed the next day when that ship was sunk by U-666 ( Kriegsmarine).
St Usk  United Kingdom World War II: The cargo ship was torpedoed and sunk in the Atlantic Ocean (16°30′S 29°28′W) by U-161 ( Kriegsmarine). Her captain was taken as a prisoner of war, the rest of her 51 crew were rescued by Albareda ( Spain).[165]
Theodore Dwight Weld  United States World War II: Convoy ON 202: The Liberty ship was torpedoed and sunk in the Atlantic Ocean 500 nautical miles (930 km) south west of Iceland (57°03′N 28°08′W) by U-238 ( Kriegsmarine) with the loss of 12 gunners and 20 crewmen. Survivors were rescued by Rathlin ( United Kingdom).[166][167]
U-338  Kriegsmarine World War II: The Type VIIC submarine was depth charged and sunk in the Atlantic Ocean by HMCS Drumheller ( Royal Canadian Navy) with the loss of all 51 crew.
U-346  Kriegsmarine The Type VIIC submarine sank in Danzig Bay 54°37′38″N 18°50′26″E in a diving accident with the loss of 37 of her 43 crew.
USS YF-579  United States Navy The self-propelled covered lighter sprang a leak and sank while under tow off San Francisco, California. Salvage efforts were unsuccessful and the wreck was blown up.[168]

21 September
List of shipwrecks: 21 September 1943
ShipCountryDescription
Antje Fritzen  Germany World War II: The cargo ship was torpedoed and sunk in the Arctic Sea by TKA-21 ( Kriegsmarine), or sunk by mine with Soviet motor torpedo boats witnessing the sinking.[2][169]
Argun Maru  Imperial Japanese Navy World War II: Convoy RINJI-B: The cargo ship was torpedoed and sunk in the East China Sea northeast of Formosa (26°33′N 123°10′E) by USS Trigger ( United States Navy). Two crew were killed.[170]
Brandenburg  Kriegsmarine World War II: The minelayer was torpedoed and sunk 7 miles (11 km) northeast of Isola di Capraia, Italy (43°08′N 90°58′E) by HMS Unseen ( Royal Navy). 25 crewmen missing and 30 wounded. Survivors rescued by R 189 and R 201 (both  Kriegsmarine).[2][171][172]
Cornelia P. Spencer  United States World War II: The Liberty ship was torpedoed and sunk in the Indian Ocean (2°08′N 50°10′E) by U-188 ( Kriegsmarine) with the loss of two of her 68 crew. Survivors were rescued by HMS Relentless ( Royal Navy), Sandown Castle ( United Kingdom) or reached land in their lifeboat.[173][174]
F 509  Kriegsmarine The Type C Marinefahrprahm was sunk on this date.[23]
Hokusei Maru  Japan World War II: The ship was sunk in the Pacific Ocean by USS Wahoo ( United States Navy).[2]
Kreta  Kriegsmarine World War II: The night fighter direction vessel was torpedoed and sunk in the Mediterranean Sea 7 miles (11 km) northeast of Isola di Capraia (43°08′N 90°58′E) by HMS Unseen ( Royal Navy). Five crewmen killed, eleven wounded. Survivors were rescued by R 189 and R 201 (both  Kriegsmarine).[2][172]
Nikolaus  Germany World War II: The cargo ship was torpedoed and sunk by ORP Dzik ( Polish Navy) off Bastia, Corsica.[2][175]
HMS Polyanthus  Royal Navy World War II: Convoys ONS 18/ON 202: The Flower-class corvette was torpedoed and sunk about 1,000 miles southwest of Reykjavík (57°00′N 31°10′W) by U-952 ( Kriegsmarine during convoy escort duty with the loss of all but one of her 85 crew, and 80 crew from HMCS St. Croix ( Royal Canadian Navy).
StuBo 1088  Kriegsmarine The StuBo42 type landing craft/motor launch was sunk on this date.[176]
Shiriya  Imperial Japanese Navy World War II: Convoy RINJI-B: The fleet oiler was torpedoed and sunk in the East China Sea north east of Formosa (26°33′N 123°10′E) by USS Trigger ( United States Navy).[170]
Shoyo Maru  Imperial Japanese Navy World War II: Convoy RINJI-B: The transport ship was torpedoed and sunk in the East China Sea north east of Formosa (26°27′N 122°40′E) by USS Trigger ( United States Navy). Five crew were killed.[2][170]
Tiberiade  France World War II: The cargo ship capsized and sank in an Allied air raid on Bastia, Corsica.[177]
William W. Gerhard  United States World War II: Convoy NSS 3: The Liberty ship was torpedoed and damaged in the Tyrrhenian Sea 45 nautical miles (83 km) south of Salerno, Italy (40°05′N 14°43′E) by U-593 ( Kriegsmarine) with the loss of two of the 267 people on board. Survivors abandoned ship and were rescued by the convoy's escorts, including USS Symbol, which rescued 124 people. The crew reboarded William W. Gerhard. She was taken in tow by USS Moreno ( United States Navy) but a fire broke out and the crew were taken off. Her cargo of ammunition exploded and the ship broke in two, with the bow section sinking. The stern section was scuttled by USS Moreno.[178][179]

22 September
List of shipwrecks: 22 September 1943
ShipCountryDescription
Andrea Sgarallino  Italy World War II: The small passenger ship was torpedoed and sunk in the Mediterranean Sea by HMS Uproar ( Royal Navy), with the loss of some 300 civilians.[2]
USS APc-35  United States Navy The coastal transport ran aground off Tetepare Island, Solomon Islands (08°48′S 157°46′E) and was abandoned.[180]
F 420  Kriegsmarine The Type C Marinefahrprahm was sunk on this date.[23]
HMS Itchen  Royal Navy World War II: Convoys ONS 18/ON 202: The River-class frigate was torpedoed and sunk in the Atlantic Ocean by U-666 ( Kriegsmarine) with The loss of all but one of her crew.[34]
Jenny  Germany World War II: The coastal tanker was sunk at Nantes, Loire-Inférieure during an American air raid.[2]
Katsurahama Maru  Japan World War II: The coaster was torpedoed and sunk in the East China Sea by USS Snook ( United States Navy).[132]
Lydia  Romania World War II: The barge was sunk by a mine in the Black Sea. Raised, but not repaired[181]
M-51  Soviet Navy The M-class submarine sank in the Black Sea off Ochemiri in a diving accident. She was raised on 25 September, repaired, and returned to service in 1944.[2]
HMT Ocean Retriever  Royal Navy World War II: The naval trawler struck a mine and sank in the Thames Estuary with the loss of all eleven crew.[34]
Richard Olney  United States World War II: The Liberty ship struck a mine and was damaged in the Mediterranean Sea (37°25′N 9°54′E). She was towed to Bizerta, Algeria but was declared a constructive total loss.[182]
Rovigno  Italy World War II: The passenger ship was torpedoed and sunk by British MTB 89 at the pier in Vlorë, Albania.[183]
SNS-786  Romania World War II: The lighter was sunk by a mine in the Black Sea.[184]
Sperone  Italy World War II: The tugboat was sunk by a German mine off Taranto. They were 97 dead and 51 survivors.[185]
U-229  Kriegsmarine World War II: The Type VIIC submarine was depth charged, shelled, rammed and sunk in the Atlantic Ocean south east of Cape Farewell, Greenland (54°36′N 36°25′W) by HMS Keppel ( Royal Navy) with the loss of all 50 crew.

23 September
List of shipwrecks: 23 September 1943
ShipCountryDescription
Daishin Maru  Japan World War II: The tanker was torpedoed and sunk in the Pacific Ocean south of Honshu (34°15′N 137°00′E) by USS Harder ( United States Navy).[66][186]
Dithmarschen  Germany World War II: The cargo ship was torpedoed and sunk in the Aegean Sea by Allied aircraft.[2]
Gaetano Donizetti  Germany World War II: The troopship was shelled and sunk in the Aegean Sea by the destroyer HMS Eclipse ( Royal Navy) with the loss of at least 1,576 lives, most of them Italian prisoners.[2]
Ermland  Germany World War II: The tanker was sunk at Nantes, Loire-Inférieure, France during an American air raid.[2]
FL 08 Notre Dame de Laghet  Kriegsmarine The naval trawler was lost on this date.[99]
Fort Jemseg  United Kingdom World War II: Convoy ON 202: The Fort ship was torpedoed and sunk in the Atlantic Ocean (53°18′N 40°24′W) by U-238 ( Kriegsmarine) with the loss of one of her 53 crew. Survivors were rescued by Romulus ( Norway) and HMT Northern Foam ( Royal Navy).[131][187]
Kertosono  Netherlands World War II: The cargo liner was bombed and sunk by aircraft at Nantes.[188]
Kowa Maru  Japan World War II: The cargo ship was torpedoed and sunk in the Pacific Ocean off Honshu by USS Harder ( United States Navy).[66]
Kulmerland  Kriegsmarine World War II: The supply ship was bombed and sunk at Nantes during an American Air raid.[2] Raised in 1946, and scrapped in 1950 at Briton Ferry, Wales.[189]
M-119  Kriegsmarine World War II: The Type 1915 minesweeper was scuttled in Italy.[190]
Oregon Express  Norway World War II: Convoy ON 202: The cargo ship was torpedoed and sunk in the Atlantic Ocean (53°40′N 39°50′W) by U-238 ( Kriegsmarine) with the loss of eight of her 45 crew. Survivors were rescued by Kingman ( Panama) and Romulus ( Norway).[191]
R 30  Kriegsmarine World War II: The R-25-class minesweeper was sunk in the Black Sea off Kerch, Soviet Union by Soviet aircraft.[2]
R 93  Kriegsmarine World War II: The minesweeper struck a mine and sank in the North Sea off Dunkerque Nord, France.[2]
R-94  Kriegsmarine World War II: The Type R-41 minesweeper was sunk by a mine off Dunkerque.[35]
Ryotoku Maru  Japan World War II: The cargo ship was torpedoed and sunk in the Surigao Strait by USS Trout ( United States Navy).[192]
SG 2  Kriegsmarine World War II: The Sans Souci-class sloop was bombed and sunk at Nantes by Allied aircraft with the loss of 2 lives.[193][194]
Skjelbred  Norway World War II: Convoy ON 202: The tanker was torpedoed and sunk in the Atlantic Ocean (53°18′N 40°24′W by U-238 ( Kriegsmarine). All 43 crew were rescued by HMT Northern Foam ( Royal Navy).[195]
Steel Voyager  United States World War II: Convoys ONS 18/ON 202: The cargo ship was torpedoed and sunk in the Atlantic Ocean (53°18′N 40°24′W) by U-952 ( Kriegsmarine). All 66 crew were rescued by HMCS Morden ( Royal Canadian Navy) and Renoncule ( Free French Naval Forces).[196]
St. Nazaire  Germany World War II: The cargo ship was torpedoed and sunk in the Mediterranean Sea off Corsica by HMS Sibyl ( Royal Navy). There were 38 dead and 21 survivors.[2][197]
TA10  Kriegsmarine World War II: The La Melpomène-class torpedo boat was heavily damaged by HMS Eclipse ( Royal Navy) off Rhodes. She was scuttled on 27 September in Prassas Bay.[198]
Vieste  Regia Marina World War II: The captured Crotone-class minelayer was scuttled by the Germans.[199]
Wangerland  Germany World War II: The tanker was sunk at Nantes during an American air raid.[2]
Yamashiro Maru  Japan World War II: The cargo liner was torpedoed and sunk in the Surigao Strait by USS Trout ( United States Navy) with the loss of four crewmen and seven passengers.[192][200]

24 September
List of shipwrecks: 24 September 1943
ShipCountryDescription
Elias Howe  United States World War II: The Liberty ship was torpedoed and sunk in the Gulf of Aden 75 nautical miles (139 km) south east of Aden (11°35′N 45°50′E) by I-10 ( Imperial Japanese Navy) ith the loss of 2 crew. The 58 survivors were rescued by HMS Aiglon ( Royal Navy) and a seaplane.[201][202]
F 217  Kriegsmarine The Type A Marinefahrprahm was heavily damaged by Soviet aircraft in Kerch. She was not repaired and finally scuttled in November 1943. There was no casualty.[23][203]
Francesco Stocco  Regia Marina World War II: The Giuseppe Sirtori-class torpedo boat was sunk by German aircraft off Corfu with the loss of 103 crew.[136][204]
HMS LCA 675  Royal Navy The landing craft assault was lost on this date.[205]
HMS MMS 70  Royal Navy World War II: The MMS-class minesweeper was sunk by a mine in the Gulf of Taranto with the loss of 10 crew.[206][207]
Mostun  Norway World War II: The cargo ship struck a mine and sank in Gulenfjord, Norway. She was raised the next day, repaired and returned to service.[208]

25 September
List of shipwrecks: 25 September 1943
ShipCountryDescription
Azuchi Maru  Japan The auxiliary stores ship disappeared without a trace with her 24 crew between Kusai and Nauru, possibly a maritime hazard.[209]
DB-18 and DB-31  Soviet Navy The No. 1-class landing boats were lost on this date.[97]
HMT Donna Nook  Royal Navy World War II: The naval trawler was rammed and sunk in the North Sea off Harwich, Essex by HMT Stella Rigel ( Royal Navy) while engaging Kriegsmarine E-boats. All crew were rescued.[34]
Dubac  Italy World War II: The cargo ship was evacuating Italian troops from Albania when she bombed by German aircraft in the Strait of Otranto and ran aground to avoid sinking. More than 200 men were killed. The wreck sank some days later and was scrapped after the war.[210]
Enrico Cosenz  Regia Marina World War II: The Giuseppe La Masa-class destroyer was bombed and damaged by German aircraft. Scuttled on 27 September off Lagosta Island.[211]
HMT Franc Tireur  Royal Navy World War II: The naval trawler was torpedoed and sunk in the North Sea off Harwich by S 96 ( Kriegsmarine) with the loss of all 15 crew.[34]
Kirishima Maru  Imperial Japanese Navy World War II: Convoy SA-12: The Kirishima Maru-class auxiliary oiler was torpedoed and sunk in the South China Sea (09°53′N 112°10′E) by USS Bowfin ( United States Navy). 14 crew were killed.[212]
LS 6  Kriegsmarine The LS 2-class light schnellboot was lost on this date.[213]
Moliere  Kriegsmarine The auxiliary river minesweeper was sunk on this date.[214]
Monsun  Germany World War II: The tanker was sunk at Nantes, Loire-Inférieure, France during an American air raid.[2]
MS 21  Regia Marina World War II: The MS 11-class E-boat was scuttled at Gatea.[80]
Nordstern  Germany World War II: The ship was sunk at Nantes during an American air raid.[2]
Probitas  Italy World War II: The cargo ship was bombed and sunk in the Adriatic Sea off Santi Quaranta, Albania[215]
S-96  Kriegsmarine World War II: The E-boat was rammed and damaged in the North Sea off the Sunk Lightship ( United Kingdom) by HMML 145 and HMML 150 (both  Royal Navy) and was abandoned. Thirteen crew were rescued by HMML 145 and taken as prisoners of war.[34]
San Pablo  Panama The cargo ship was sunk as a target in the Gulf of Mexico 9 nautical miles (17 km) southeast of the Pensacola Pass.[216]
USS Skill  United States Navy World War II: The Auk-class minesweeper was torpedoed and sunk in the Gulf of Salerno (40°20′N 14°35′E) by U-593 ( Kriegsmarine) with the loss of 72 of her 103 crew. Survivors were rescued by USS Speed ( United States Navy).[217]
Taiko Maru  Japan World War II: The cargo ship was torpedoed and sunk in the Pacific Ocean by USS Pompano and USS Wahoo (both  United States Navy).[2][10]
V 316  Kriegsmarine World War II: The Ekwator-class Vorpostenboot was torpedoed by British aircraft in the North Sea off Camperdown, and either beached, or sunk, off Den Helder, North Holland.[2][218]

26 September
List of shipwrecks: 26 September 1943
ShipCountryDescription
Christian Michelsen  Norway World War II: Convoy UGS 17: The cargo ship was torpedoed and sunk in the Mediterranean Sea (37°12′N 8°26′E) by U-410 ( Kriegsmarine) with the loss of 47 of the 50 people on board.[219][220]
DB-13, DB-28 and DB-38  Soviet Navy The No. 1-class landing boats were lost on this date.[97]
Ellinico Horio  Germany World War II: The coaster was seized during the night by its Greek crew and Italian prisoners of war and tried to escape. She was sunk by German aircraft off Karpathos with no survivors.[221][222]
Hildegard  Germany World War II: The cargo ship was torpedoed and sunk in the Baltic Sea off Ventspils, Latvia by a Soviet Ilyushin Il-4 aircraft.[2]
HMS Intrepid  Royal Navy World War II: The I-class destroyer was bombed and sunk at Leros, Greece by Junkers Ju 88 aircraft of the Luftwaffe with the loss of 15 crew. Survivors were rescued by HMML 354, HMML 356 and HMML 836 (all  Royal Navy).[34]
Itapagé  Brazil World War II: The cargo liner was torpedoed and sunk in the Atlantic Ocean (10°05′S 35°54′W) by U-161 ( Kriegsmarine) with the loss of 22 of the 107 people on board.[223]
Kasasagi  Imperial Japanese Navy World War II: The Ōtori-class torpedo boat was torpedoed and sunk in the Flores Sea (05°00′S 121°57′E) by USS Bluefish ( United States Navy).[224]
MAS 534  Regia Marina World War II: The MAS 526-class MAS boat was sunk off Leros by German aircraft.[225]
RA 267 and RA 268  Kriegsmarine World War II: The VAS 231-class submarine chasers were scuttled by the Germans after capturing them earlier in the month.[94]
UJ 2218 Tadorna  Kriegsmarine The submarine chaser ran aground near Ardenza, Italy and was wrecked.[2]
Vasilissa Olga  Hellenic Navy World War II: The G-class destroyer was bombed and sunk at Leros by Junkers Ju 88 aircraft of the Luftwaffe with the loss of 72 of her 145 crew. Survivors were rescued by HMML 354, HMML 356 and HMML 836 (all  Royal Navy).

27 September
List of shipwrecks: 27 September 1943
ShipCountryDescription
Arare Maru  Imperial Japanese Army World War II: Operation Jaywick: The tanker was mined and sunk by Australian Commandos using Limpet mines at Singapore. One crewman was killed. She was raised, repaired, returned to service.[226]
Champagne  Germany World War II: The tanker was torpedoed and sunk in the Mediterranean Sea off Corsica by HMS Ultor, HMS Uproar (both  Royal Navy) and ORP Dzik ( Polish Navy).[2]
Elsi  Germany World War II: The transport ship was sailing from Pireus to Argostoli to pick up Italian prisoners of war where she hit a mine south of Cephalonia and sank. There were no casualties.[2][227]
Fuji Maru  Japan World War II: The cargo ship was bombed and sunk off Wewak, New Guinea by American aircraft.[2]
Hakusan Maru  Imperial Japanese Army World War II: Operation Jaywick: The tanker was mined and sunk by Australian Commandos using limpet mines at Singapore.[226]
Jungingen  Kriegsmarine World War II: The patrol boat, or R boat tender, a converted Type 1916 minesweeper, was torpedoed and sunk in the English Channel southwest of Berck-sur-Mer, Pas-de-Calais, France, or at Le Havre by HMMTB 202, HMMTB 204, HMMTB 231, HMSGB 4 Grey Fox (all  Royal Navy).[2][228]
Kashima Maru  Japan World War II: The Japanese Army transport was torpedoed and sunk in the Pacific Ocean (31°35′N 127°47′E) by USS Bonefish ( United States Navy). 139 troops/passengers and one crew were killed.[229][230]
Kiri Maru  Japan World War II: The cargo ship was bombed and sunk off Wewak by American aircraft.[2]
Kizan Maru  Imperial Japanese Army World War II: Operation Jaywick: The cargo ship was mined and sunk by Australian Commandos using Limpet mines at Singapore. One crew member was killed. The wreck was broken up July 1944.[226]
M 4616  Kriegsmarine The minesweeper ran aground at Aberwrac'h, Finistère, France and was wrecked.[2]
Madali  Germany World War II: The cargo ship was torpedoed and sunk in the English Channel south west of Berck-sur-Mer by HMMTB 202, HMMTB 204, HMMTB 231, HMSGB 4 Grey Fox (all  Royal Navy).[2]
No. 24  Soviet Navy The G-5-class motor torpedo boat was lost on this date.[102]
Sakihana Maru  Japan World War II: The cargo ship was bombed and sunk off Wewak by American aircraft.[2]
Taisei Maru  Japan World War II: Convoy Wewak No.9 : The transport ship was bombed and sunk north of Wewak by American aircraft. Six gunners and seven crew were killed.[231]
Taisho Maru  Japan World War II: The cargo ship was bombed and sunk off Wewak by American aircraft.[2]
U-161  Kriegsmarine World War II: The Type IXC submarine was depth charged and sunk in the Atlantic Ocean (12°30′S 35°35′W) by Martin PBM Mariner aircraft of the United States Navy with the loss of all 53 crew and one survivor from St Usk ( United Kingdom) who had been taken aboard as a prisoner of war.[165][232]
U-221  Kriegsmarine World War II: The Type VIIC submarine was depth charged and sunk in the Atlantic Ocean (approximately 47°00′N 18°00′W) by a Handley Page Halifax aircraft of 58 Squadron, Royal Air Force with the loss of all 50 crew.
V 1501 Wiking 7  Kriegsmarine World War II: The Vorpostenboot/naval whaler was torpedoed and sunk in the English Channel off Cap d'Antifer, Seine-Inférieure, France by HMMGB 108 HMMGB 117 and HMMGB 118 (all  Royal Navy).[2]
V 5705 Elsaß  Kriegsmarine World War II: The Vorpostenboot/naval whaler struck a mine and sank in the Norwegian Sea off Bodø, Norway with the loss of 19 crew.[2][233]

28 September
List of shipwrecks: 28 September 1943
ShipCountryDescription
Akashi Maru  Japan World War II: The cargo ship was torpedoed and sunk in the Pacific Ocean by USS Bluefish ( United States Navy).[2]
Ardena  Kriegsmarine World War II: The passenger ferry, a former Azalea-class sloop, was sailing from Cephalonia to Greece with 840 Italian prisoners of war when she hit a mine off Argostoli and sank. 720 Italian prisoners of war were killed.[234][235]
USS Cisco  United States Navy World War II: The Balao-class submarine was bombed, depth charged and sunk in the Sulu Sea west of Negros, Philippines (9°47′N 121°44′E) by Japanese aircraft and Karatsu ( Imperial Japanese Navy).
Giulio Germanico  Regia Marina World War II: The 94% complete Capitani Romani-class cruiser was scuttled by the Germans at Castellammare di Stabia. Raised and completed 1953–55 and put in Italian Navy service as San Marco.[236]
Hoko  Imperial Japanese Navy World War II: The Hirashima-class minelayer was bombed and sunk 20 nautical miles (37 km) east of Buka, Bouganville (05°00′S 154°30′E) by American aircraft.[237]
HMS LCP(R) 1019  Royal Navy The landing craft, personnel (ramped) was lost on this date.[238]
No. 155  Soviet Navy World War II: The auxiliary minesweeper was sunk in the Black Sea by S 28, S 42, S 45 and S 49 (all  Kriegsmarine).[239]
Nord-Vest  Soviet Navy World War II: The auxiliary minesweeper was sunk in the Black Sea by S 28, S 42, S 45 and S 49 (all  Kriegsmarine).[239]
Taian Maru  Japan World War II: The cargo ship was torpedoed and sunk in the Pacific Ocean SW of Anatahan Island, Marianas, by USS Gudgeon ( United States Navy) with the loss of 60 lives (46 passengers and 14 crew).[2][240]
VAS 205  Kriegsmarine World War II: The VAS 205-class submarine chaser was scuttled by the Germans off Ischia Island after capturing her earlier in the month. She was raised post-war, repaired and returned to service.[93]

29 September
List of shipwrecks: 29 September 1943
ShipCountryDescription
Banffshire  United Kingdom World War II: The cargo ship was torpedoed and sunk in the Arabian Sea north west of the Maldive Islands (9°26′N 71°20′E) by U-532 ( Kriegsmarine) with the loss of one of her 100 crew. Survivors were rescued by HMS Rajputana ( Royal Navy).[241]
Dunay II  Soviet Union World War II: The lighter was torpedoed and sunk in the Black Sea by U-20 ( Kriegsmarine).[2]
Danaiskaya 2  Soviet Union World War II: The barge was sunk by mines in the Tuganrog Gulf. 182 crew and passengers killed.[242]
USS LCT-342  United States Navy The LCT-1-class landing craft tank was lost by grounding off Salerno, Italy.[243]
Masaki Maru No. 2  Japan World War II: The cargo ship was torpedoed and sunk in the Pacific Ocean by USS Wahoo ( United States Navy).[2]

30 September
List of shipwrecks: 30 September 1943
ShipCountryDescription
Arkhangel'sk  Soviet Union World War II: Convoy VA 18: The cargo ship was torpedoed and sunk in the Kara Sea west of Russkij Island (76°54′N 92°29′E) by U-960 ( Kriegsmarine) with the loss of seventeen of her 42 crew. Survivors were rescued by T-886 ( Soviet Navy).[244]
HMS LCT 2231  Royal Navy World War II: The LCT-5-class landing craft tank was lost as cargo aboard HMS LST 79 ( Royal Navy) when she was sunk at Ajaccio, Corsica, France. There were no casualty.[245]
HMS LST 79  Royal Navy World War II: The LST-1-class landing ship tank was sunk by German aircraft at Ajaccio. Four crew were killed and another died of his wounds 15 days later.[246][247][248]
M 7022 Hummer  Kriegsmarine World War II: The minesweeper, a converted Heilbutt-class patrol ship, was torpedoed and sunk in the Mediterranean Sea east of Bastia by HMS Sibyl ( Royal Navy).[2]
Maebashi Maru  Imperial Japanese Army World War II: Convoy N-805: The transport was torpedoed and sunk in the Pacific Ocean 373 nautical miles (691 km) east south east of Palau (01°00′N 139°28′E) by USS Pogy ( United States Navy). A total of 1,389 troops, thirteen gunners, and 48 crew were killed.[249]
Sanct Svithun  Norway World War II: The passenger ship was bombed and sunk off the Stad Peninsula, Norway, by Bristol Beaufighter aircraft of 404 Squadron Royal Canadian Air Force. Between 19 and 20 Norwegian crew, 22 and 26 Norwegian passengers and 10 and 20 German soldiers lost their lives.[250]
USCGC Wilcox  United States Navy The patrol vessel foundered in a gale off of Nags Head, North Carolina. One crew was lost, 37 survived.[251]
Züllchow 17  Germany World War II: The lighter was torpedoed and sunk in the Baltic Sea off Steinort by a Soviet Ilyushin Il-4 aircraft.[8][2]

Unknown date
List of shipwrecks: Unknown date 1943
ShipCountryDescription
Caio Mario  Regia Marina World War II: The Capitani Romani-class cruiser was scuttled at La Spezia.[252]
HMS Gallant  Royal Navy World War II: The G-class destroyer was scuttled as a blockship at St Paul's Island, Malta.
USS Grayling  United States Navy World War II: The Tambor-class submarine was sunk by enemy action in the South China Sea between 9 and 12 September with the loss of all 60 crew.
HMS LCI(L)-107  Royal Navy The landing craft infantry (large) was lost in September.[253]
HMS LCS(L) 201  Royal Navy The LCS-1-class landing craft support was lost in September.[254]
USS LCT-209  United States Navy World War II: The LCT Mk 5-class landing craft tank was destroyed at Salerno, Italy by the explosion of Bushrod Washington ( United States) on 15 September 1943 during the Battle of Salerno, or lost off Normandy, France on 10 or 19 June 1944.[255][256]
K-1  Soviet Navy World War II: The K-class submarine was lost in the Kara Sea between 9 and 21 September.[2][257]
SG 22  Kriegsmarine World War II: The Élan-class corvette was scuttled at Livorno. She was scrapped in 1946.[258]
U-669  Kriegsmarine World War II: The Type VIIC submarine disappeared on patrol in the Bay of Biscay with the loss of all 52 crew. Cause unknown.[259] One source claims she struck a mine in the Bay of Biscay and sank on 6 September 1943.[2]
Ugo Botti  Regia Marina World War II: The coaster was scuttled by partisans at Split to prevent capture by the Germans. Raised by Yugoslavia in November 1944, repaired and returned to service in 1945 as Knin.[260]

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Ship events in 1943
Ship launches: 1938 1939 1940 1941 1942 1943 1944 1945 1946 1947 1948
Ship commissionings: 1938 1939 1940 1941 1942 1943 1944 1945 1946 1947 1948
Ship decommissionings: 1938 1939 1940 1941 1942 1943 1944 1945 1946 1947 1948
Shipwrecks: 1938 1939 1940 1941 1942 1943 1944 1945 1946 1947 1948
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