April 2024 Updates

The following changes have been made to the database:

  • 8 records edited (additional links, corrections)
  • 3 records moved to better locations
  • 5 records added

The following sunken vessels were added to the map:

  • Dalny, sunk 4 June 1943
  • Gonneville, sunk 20 August 1944
  • H23 Grandlieu, sunk 20 June 1944
  • Molch, sunk 2 May 1945
  • Taurus, sunk 7 July 1944

See them on the map.

February 2024 Updates

The following changes have been made to the database of sunken ships:

  • 6 records edited (additional links, corrections)
  • 4 records moved to better locations
  • 1 record deleted
  • 7 records added

The following sunken vessels were added to the database:

  • Bahia Castillo, sunk on 1 May 1940
  • Berlin, sunk on 1 February 1945
  • Nioi, sunk on 29 October 1943
  • RD-4, sunk on 29 January 1943
  • Sifnos, sunk on 4 March 1944
  • U-1407, sunk on 4 May 1945
  • U-4708, sunk on 9 April 1945

See them all on the map.

January 2024 Updates

A shorter list of updates to the database for January.

  • 5 records edited (additional links, corrections)
  • 1 record moved to a better location
  • 1 record deleted
  • 10 records added

The following sunken vessels were added to the database:

  • Kentucky, sunk 15 June 1942
  • TA 24 Arturo, sunk 18 March 1945
  • TA 29 Eridano, sunk 18 March 1945
  • U-684, sunk 3 May 1945
  • U-685, sunk 3 May 1945
  • U-2501, sunk 3 May 1945
  • U-2505, sunk 3 May 1945
  • U-3504, sunk 3 May 1945
  • U-3506, sunk 3 May 1945
  • Volante, sunk 12 July 1940

Read about the discovery of the 6 U-boats mentioned here that were scuttled at the end of the war in Europe in the U-boat bunkers in Hamburg.

December 2023 Updates

Updates for this month:

  • 19 records edited (additional links, corrections)
  • 2 records moved to better locations
  • 1 record deleted
  • 20 records added

The following sunken vessels were added to the database:

  • Ausonia, sunk 18 September 1944 (Read about it on Instagram)
  • Eso, sunk 19 January 1943
  • Giansone I, sunk 24 October 1940
  • La Galissonnière, sunk 18 August 1944
  • Macallè, sunk 15 June 1940
  • Riccardo Grazioli Lante, sunk 24 August 1941
  • Strasbourg, sunk 18 August 1944 (Read about it on Instagram)
  • Stromboli, sunk 19 January 1943
  • Volta, sunk 8 October 1943
  • MAS 537, sunk 4 September 1940
  • MAS 552, sunk 30 April 1943
  • MS 25, sunk 30 April 1943
  • MS 33, sunk 3 November 1943
  • MZ 723, sunk 4 August 1942
  • MZ 733, sunk 21 May 1943
  • MZ 771, sunk 7 April 1943
  • RD 22, sunk 25 October 1943
  • RD 7, sunk 15 June 1942
  • VAS 225, sunk 5 May 1943

October 2023 Updates

Updates for this month:

  • 82 records edited (additional links, corrections)
  • 51 records moved to better locations
  • 0 records deleted
  • 18 records added

The following sunken vessels were added to the database:

  • Ametista, sunk 13 September 1943
  • Citta di Milano, sunk 9 September 1943
  • Fratelli Cairoli, sunk 23 December 1940
  • Köln, sunk 17 June 1944
  • Lanzerotto Malccello, sunk 24 March 1943
  • Marcantonio Colonna, sunk 9 September 1943
  • Quarnaro, sunk 20 September 1943 (Read about it on Instagram)
  • Scorfano, sunk 20 January 1943
  • Sfinge, sunk 14 May 1943
  • Silvia Onorato, 20 July 1943
  • Splendor x 2, sunk 9 September 1943 AND 9 August 1944
  • Uragano, sunk 3 February 1943
  • Verace, sunk 16 October 1940
  • Vesta, sunk 9 October 1944 (Read about it on Instagram)
  • Vettor Pisani, sunk 25 July 1942
  • Vincenzo, sunk 11 August 1943
  • Virgilio, sunk 6 December 1943

September 2023 Updates

Updates for this month:

  • 24 records edited (additonal links, corrections)
  • 17 records moved to better locations
  • 3 records deleted
  • 18 records added

The following sunken vessels were added to the database:

  • Gemma, sunk 30 January 1943
  • Kawsar, sunk 11 April 1942
  • Petronio, sunk 15 July 1944
  • Picci Fassio, sunk 2 September 1942
  • Pietro Orseolo, sunk 18 December 1943
  • Ravello, sunk 19 April 1945
  • Rete Impero I, sunk 22 July 1943
  • Rina Croce, sunk 25 September 1940
  • Sabaudia, sunk 10 May 1943
  • Scaro Cuore, sunk 2 December 1942
  • Sagitta, sunk 9 November 1941
  • Salvatore Primo, sunk 21 June 1943
  • San Barbara, sunk 20 January 1943
  • San Paola, sunk 16 November 1942
  • San Vincenzo, sunk 30 March 1943
  • Sanandrea, sunk 31 August 1942
  • Sant’ Aniello, sunk 30 January 1943
  • Santa Maria del Salvazione, sunk 30 March 1943

Currently 15,332 ships mapped.

The Month the Tonnage War was Lost

It’s debtable whether or not the Germans ever came close to winning the tonnage war in World War II. I personally don’t think so but more numbers would need to be collected including the construction records of Allied shipyards not in North America as well as a determination of how much shpping tonnage Britain would have needed to stay alive. However, after collecting the merchant shipping tonnage built by Canada and the United States during the Second World War and comparing that to what I have for Allied merchant shipping losses, it doesn’t seem likely. These 2 countries alone accounted for 37.7 million gross registered tons of shipping. What this number does not account for is the amount of shipping that became available to the Allies when the United States entered the war as well as any of the new construction that happened outside of North America. That, obviously, requires a bit more work to include.

In the meantime, the first chart above compares the cumulative gains (new construction) and losses for the Allies for each month of the war. The two North American countries began to build ships faster than they could be sunk in Spetember, 1942 when 713,204 tons of new merchant shipping was delivered while 500,881 tons was lost due to war. With one exception, in every month from then on until the end of the war, Canada and the United States (the latter accounting for 93% of total war time production) easily replaced Allied losses. The German submarine arm’s Black May in which 41 of its boats were lost had yet to happen and was just the final nail in the coffin for the Germans.

Even so, it wasn’t until December 1943 that all Allied shipping losses since the beginning of the war were replaced with new construction (below).