Events
On This Day - May 1
| 1915 | E 14 (I 94) | Sank the Gunboat Nurelbahr in the Sea of Marmara. Also disabled the minelaying gunboat Peykisevket by torpedo. |
| 1916 | E 54 | Completed |
| 1916 | W 2 | Completed |
| 1916 | G 8 (I 0C) | Launched |
| 1917 | E 40 | Completed |
| 1917 | L 55 | Laid Down |
| 1917 | E 54 | Sank the U81 under the command of Weisbach in the Atlantic under conflicting circumstances. One claim is that U81's crew were carrying out their ablutions on the upper deck, one crew member using the bucket. Raikes is reputed to have stated ('I saved him the trouble of using toilet paper'), this has since been proved untrue. The second claim is that U81 was at action stations because the boat was engaged in sinking a steamer when E54's torpedo struck her. |
| 1919 | H 42 | Completed |
| 1920 | Crescent 1899 - 1921 | Transferred to Rosyth to serve as a depot ship. |
| 1929 | Oswald (N 58) | Completed |
| 1935 | Rorqual (N 74) | Laid Down |
| 1940 | Narwhal (N 45) | HMS Narwhal torpedoes and sinks the German troop transport Buenos Aires and torpedoes and damages the German troop transport Bahia Castillo in the Kattegat about 20 nautical miles north of Anholt, Denmark. |
| 1940 | Narwhal (N 45) | HMS Narwhal lays minefield FD 6 (50 mines) in the Kattegat. |
| 1941 | Graph (P 715) | Commissioned as German U-570, later captured by the British |
| 1941 | Upholder (N 99) | HMS Upholder torpedoes and sinks the German merchants Arcturus and Leverkusen off Kerkennah, Tunisia. |
| 1942 | P 552 | Picked up 3 survivors from the Norwegian merchant Taborfjell that was torpedoed and sunk the previous day by German U-boat U-576 about 95 nautical miles east of Cape Cod. |
| 1944 | Untiring (P 59) | HMS Untiring torpedoes and sinks the German merchant Siena off Port Vendres, southern France. |
| 1945 | Statesman (P 246) | HMS Statesman sinks a small Japanese vessel in the Strait of Malacca. |
