This is the order of battle during the battles around Convoy ONS 5 from 29 April to 6 May 1943.
| Name | Flag | Tonnage (GRT) | Notes |
|---|---|---|---|
| Agios Georgios (1911) |  | 4,248 | |
| Argon (1920) |  | 6,952 | Escort Oiler |
| Baron Elgin (1933) | 3,942 | ||
| Baron Graham (1925) | 3,242 | ||
| Baron Semple (1939) | 4,573 | ||
| HMCS Barrie | Escort 7 May - 12 May | ||
| Bengkalis (1918) |  | 6,453 | |
| Berkel (1930) | | 2,130 | After collision with Bornholm 25 Apr |
| Bonde (1936) |  | 1,570 | Sunk by |
| Bornholm (1930) | 3,177 | Collision With Berkel. Detached to Iceland | |
| Bosworth (1919) | 6,672 | Joined Ex-Iceland 26 Apr | |
| Bristol City (1920) | 2,864 | Sunk By | |
| British Lady (1923) | 6,098 | Escort Oiler | |
| HMCS Buctouche (K179) | Escort 7 May - 12 May | ||
| Campus (1925) | 3,667 | ||
| Commandant Dorise (1917) | 5,529 | ||
| HMCS Cowichan (J146) | Escort 7 May - 12 May | ||
| Cydonia (1927) | 3,517 | ||
| Director (1926) | 5,107 | ||
| Dolius (1924) | 5,507 | Sunk By | |
| HMS Duncan | Escort 22 Apr - 3 May destroyer leader, Senior Officer's ship Escort Group B7 | ||
| Dunsley (1929) | 3,862 | ||
| Empire Advocate (1913) | 5,787 | Put back with defects | |
| Empire Gazelle (1920) | 4,848 | ||
| Empire Planet (1923) | 4,290 | ||
| Fana (1939) | | 1,375 | |
| Gharinda (1919) | 5,306 | Sunk by | |
| Gudvor (1928) | | 2,280 | Joined Ex-Iceland 26 Apr |
| Harbury (1933) | 5,081 | Sunk by | |
| Harperley (1930) | 4,586 | Sunk by | |
| HMS Impulsive | Escort 2 May - 3 May Support Group EG 3 | ||
| Isobel (1929) |  | 1,515 | Straggled, Notional date |
| Ivan Topic (1920) | 4,943 | ||
| HMS Jed | Escort 6 May - 8 May River-class frigate Support Group EG 1 | ||
| HMS Loosestrife (K105) | Escort 22 Apr - 3 May Escort Group B7 | ||
| Lorient (1921) | 4,737 | Straggled, Sunk by | |
| Losada (1921) | 6,520 | ||
| Mano (1925) | 1,418 | ||
| McKeesport (1919) | | 6,198 | Sunk by |
| Merton (1941) | 7,150 | ||
| Modlin (1906) |  | 3,569 | Returned. Boiler defects |
| Nicolas (1910) | | 4,540 | |
| North Britain (1940) | 4,635 | Straggled, Sunk by | |
| Escort 2 May - 6 May Support Group EG 3 | |||
| Omega (1912) | 3,788 | ||
| Escort 29 Apr - 6 May Support Group EG 3 | |||
| Ottinge (1940) | 2,870 | ||
| Escort 2 May - 3 May Support Group EG 3 | |||
| Escort 6 May - 8 May Support Group EG 1 | |||
| Penhale (1924) | 4,071 | Straggled and arrived Reykjavik | |
| Escort 2 May - 3 May Support Group EG 3 | |||
| HMS Pink (K137) | Escort 22 Apr - 3 May Escort Group B7 | ||
| Rena (1924) | | 5,242 | |
| Sapelo (1919) | | 5,422 | Joined Ex-Iceland 26 Apr |
| Selvistan (1924) | 5,136 | Sunk by | |
| HMS Sennen (Y21) | Escort 6 May - 8 May Support Group EG 1 | ||
| HMS Snowflake (K211) | Escort 22 Apr - 7 May Escort Group B7 | ||
| HMS Spey (K246) | Escort 6 May - 8 May Support Group EG 1 | ||
| HMS Sunflower (K41) | Escort 22 Apr - 3 May Escort Group B7 | ||
| Escort 22 Apr - 7 May Escort Group B7 | |||
| Temple Arch (1940) | 5,138 | ||
| (1931) | | 6,963 | Joined Ex-Iceland 26 Apr |
| Escort 26 Apr - 3 May Escort Group B7 | |||
| HMS Wear (K230) | Escort 6 May - 8 May Support Group EG 1 | ||
| Wentworth (1919) | 5,212 | Sunk By & HMS Loosestrife | |
| West Madaket (1918) | | 5,565 | Sunk by |
| West Maximus (1919) | | 5,561 | Sunk by |
| Yearby (1929) | 5,666 | ||
| U-boat[1] | Type[2] | Patrol[3] | Sailed from | Gruppe Specht | Gruppe Amsel | Gruppe Star[4] | Gruppe Amsel I[5] | Gruppe Amsel II | Gruppe Fink | Notes | |
|---|---|---|---|---|---|---|---|---|---|---|---|
| U-107 | IXB | 9th | Lorient 24 April | 3 May | attacked by convoy escort 6 May;[6] returned to Lorient 26 May | ||||||
| U-125 | IXC | 7th | Lorient 13 April | 19 April | 4 May | torpedoed one ship 4 May; sunk by convoy escort 6 May[7] | |||||
| U-168 | IXC40 | 1st | Kiel 9 March | 19 April | 4 May | shadowed convoy 5 May;[8] returned to Lorient 18 May | |||||
| U-192 | IXC40 | 1st | Kiel 13 April | 27 April | 4 May | sunk by convoy escort 6 May[9] | |||||
| U-209 | VIIC | 7th | Kiel 6 April | 27 April | 4 May | damaged by bomber 1800 4 May; and sank about 7 May[10] | |||||
| U-223 | VIIC | 2nd | Saint-Nazaire 15 April | 22 April | 3 May | lightly damaged by convoy escort 5 May;[11] returned to Saint-Nazaire 24 May | |||||
| U-226 | VIIC | 2nd | Lorient 10 April | 19 April | 4 May | lightly damaged by convoy escort;[12] returned to Saint-Nazaire 17 May | |||||
| U-231 | VIIC | 1st | Kiel 13 April | 27 April | 4 May | attacked by convoy escort 5 May; returned to La Pallice 31 May | |||||
| U-258 | VIIC | 4th | La Pallice 1 April | 27 April | 4 May | torpedoed one ship 0730 29 April;[13] sunk by bomber 20 May | |||||
| U-260 | VIIC | 3rd | Saint-Nazaire 12 March | 19 April | 4 May | attacked by convoy escort 5 May;[14] returned to Saint-Nazaire 22 May | |||||
| U-264 | VIIC | 3rd | Saint-Nazaire 8 April | 19 April | 4 May | torpedoed three ships on 5 May;[15] returned to Lorient 1 June | |||||
| U-266 | VIIC | 2nd | Saint-Nazaire 14 April | 22 April | 3 May | torpedoed three ships and lightly damaged by convoy escort 5 May; sunk by bomber 15 May[16] | |||||
| U-267 | VIIC | 2nd | Saint-Nazaire 23 March | lightly damaged by convoy escort; returned to Saint-Nazaire 21 May | |||||||
| U-270 | VIIC | 1st | Kiel 23 March | 19 April | 4 May | heavily damaged by convoy escort 5 May;[17] returned to Saint-Nazaire 15 May | |||||
| U-358 | VIIC | 2nd | Saint-Nazaire 11 April | 19 April | 4 May | torpedoed two ships on 5 May and heavily damaged by convoy escort;[18] returned to Saint-Nazaire 15 May | |||||
| U-377 | VIIC | 9th | Brest 15 April | 22 April | 3 May | returned to Brest 7 June | |||||
| U-378 | VIIC | 7th | Trondheim 12 April | 27 April | 4 May | shadowed convoy 28 April and 5 May; returned to La Pallice 4 June | |||||
| U-381 | VIIC | 3rd | Saint-Nazaire 31 March | 27 April | 4 May | shadowed convoy 30 April; sunk 21 May | |||||
| U-383 | VIIC | 3rd | Brest 17 April | 22 April | 3 May | returned to Brest 25 May | |||||
| U-386 | VIIC | 1st | Kiel 15 April | 27 April | heavily damaged by convoy escorts 28/29 April;[19] returned to Saint-Nazaire 11 May | ||||||
| U-402 | VIIC | 7th | La Pallice 22 April | 3 May | returned to La Pallice 26 May | ||||||
| U-413 | VIIC | 3rd | Brest 30 March | 27 April | 4 May | lightly damaged by convoy escort 5 May;[20] returned to Brest 13 June | |||||
| U-438 | VIIC | 4th | Brest 31 March | 19 April | 4 May | damaged by bomber 2045 4 May; sunk by Support Group 1 on 6 May[21] | |||||
| U-504 | IXC | 6th | Lorient 21 April | 3 May | returned to Bordeaux 29 May | ||||||
| U-514 | IXC | 3rd | Lorient 15 April | 19 April | 4 May | lightly damaged by convoy escort 5 May;[22] returned to Lorient 22 May | |||||
| U-528 | IXC40 | 1st | Kiel 15 April | 27 April | heavily damaged by convoy escorts 28/29 April; sunk by bomber 11 May | ||||||
| U-531 | IXC40 | 1st | Kiel 13 April | 27 April | 4 May | sunk by convoy escort 5 May[23] | |||||
| U-532 | IXC40 | 1st | Kiel 25 March | 27 April | heavily damaged by convoy escorts 29 April;[24] returned to Lorient 15 May | ||||||
| U-533 | IXC40 | 1st | Kiel 15 April | 27 April | 4 May | lightly damaged by convoy escort 6 May;[25] returned Lorient 24 May | |||||
| U-552 | VIIC | 12th | Saint-Nazaire 4 April | 27 April | 4 May | returned to Saint-Nazaire 13 June | |||||
| U-575 | VIIC | 8th | Saint-Nazaire 22 April | 3 May | lightly damaged by convoy escort 5 May;[26] returned to Saint-Nazaire 11 June | ||||||
| U-584 | VIIC | 9th | Brest 23 March | 19 April | 4 May | torpedoed one ship 5 May; returned to Brest 24 May | |||||
| U-614 | VIIC | 2nd | Saint-Nazaire 12 April | 19 April | 4 May | returned to Saint-Nazaire 24 May | |||||
| U-621 | VIIC | 4th | Brest 22 April | 3 May | attacked by convoy escort 5 May; returned to Brest 3 June | ||||||
| U-628 | VIIC | 3rd | Brest 8 April | 19 April | 4 May | torpedoed two ships on 5 May; returned to Brest 19 May | |||||
| U-630 | VIIC | 1st | Kiel 18 March | 19 April | 4 May | sunk by convoy escort 6 May[27] | |||||
| U-634 | VIIC | 2nd | Lorient 15 April | 22 April | 3 May | lightly damaged by convoy escort 5 May; returned to Brest 23 May | |||||
| U-638 | VIIC | 2nd | La Pallice 20 April | 3 May | torpedoed one ship and sunk by convoy escort 5 May[28] | ||||||
| U-648 | VIIC | 1st | Kiel 3 April | 27 April | 4 May | heavily damaged by convoy escort 5 May;[29] returned to Brest 19 May | |||||
| U-650 | VIIC | 1st | Bergen 10 April | 27 April | 4 May | found convoy 0900 28 April;[30] launched torpedoes 28 April; damaged by 1st Support Group 6 May; returned to Saint-Nazaire 28 June | |||||
| U-662 | VIIC | 3rd | Saint-Nazaire 23 March | 19 April | 4 May | attacked by convoy escort 5 May;[31] returned to Saint-Nazaire 19 May | |||||
| U-707 | VIIC | 2nd | Saint-Nazaire 12 April | 19 April | 4 May | torpedoed one ship 5 May and damaged by convoy escort;[32] returned to Bordeaux 31 May | |||||
| U-710 | VIIC | 1st | Kiel 15 April | sunk by bomber 1730 24 April[33] | |||||||
| U-732 | VIIC | 1st | Kiel 8 April | 19 April | 4 May | heavily damaged by convoy escort 5 May; returned to Brest 15 May | |||||
| U-952 | VIIC | 1st | Bergen 22 April | returned to Bordeaux 31 May | |||||||
| U-954 | VIIC | 1st | Kiel 8 April | 27 April | 4 May | attacked by convoy escort 6 May;[34] sunk 19 May while attacking convoy SC 130 |
The War at Sea 1939–1945 Vol II (1956). ISBN (none)
The Atlantic Campaign (1988).