Patrol info for U-553
| Departure | Arrival / Fate | Duration | ||
| 7 Oct 1941 | St. Nazaire | 22 Oct 1941 | St. Nazaire | 16 days |
Commander | Officers * | ||
 Kptlt. Karl Thurmann |
1WO Oblt. Wolfgang von Eickstedt |
1WO Oblt. Erich von Lilienfeld |
ObStrm Walter Zenker |
Daily positions, sinkings and allied attacks during the patrol of U-553
We have daily positions for all 16 days on this patrol.
Departure from St. Nazaire on 7 Oct 1941.
8 Oct 1941 - 9 Oct 1941 - 10 Oct 1941 - 11 Oct 1941 - 12 Oct 1941 - 13 Oct 1941 - 14 Oct 1941 - 15 Oct 1941 - 16 Oct 1941 - 17 Oct 1941 - 18 Oct 1941 - 19 Oct 1941 - 20 Oct 1941 - 21 Oct 1941 -
Arrival at St. Nazaire on 22 Oct 1941.
Ships hit by U-553 during this patrol
| Date | U-boat | Commander | Name of ship | Tons | Nat. | Convoy | Map | ||
|---|---|---|---|---|---|---|---|---|---|
| 15 Oct 1941 | U-553 | Karl Thurmann |  | Silvercedar | 4,354 |  | br | SC-48 | A |
| 15 Oct 1941 | U-553 | Karl Thurmann | | Ila | 1,583 |  | nw | SC-48 | B |
| 17 Oct 1941 | U-553 | Karl Thurmann | | HMS Gladiolus (K 34) | 925 | | br | SC-48 | C |
| 6,862 | |||||||||
3 ships sunk (6,862 tons). Legend | |||||||||
General Events during this patrol
We have no events listed for this patrol.
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Attacks on U-553 during this patrol
15 Oct 1941
At 16.24 hrs, the boat dived after being sighted by HMCS Columbia while shadowing convoy SC 48 off its port beam. The destroyer obtained no Asdic contact but dropped six depth charges at the diving spot and then remained in the area to keep U-553 down. At 18.15 hrs, the U-boat fired a stern torpedo at the destroyer, but she managed to evade the attack after a lookout saw the torpedo track. HMCS Columbia picked up a good contact and delivered an accurate depth charge pattern, but U-553 had already dived to 55m (180ft) and suffered only minor damage. In the meantime HMS Gladiolus joined the hunt, but carried out no attacks as the U-boat had already crept away. (Sources: KTB U-553/ADM 237-187)
17 Oct 1941
After a successful attack on convoy SC 48, the boat dived to 90m (295ft) to avoid a destroyer which approached. Three depth charges were dropped at the diving position, detonating high above the U-boat which escaped further attacks by passing under the convoy. The destroyer was probably USS Kearny, which dropped a single depth charge at 00.22 hrs. (Sources: KTB U-553/ADM 237-164)
About this data
If you believe we have missed an attack on a German U-boat in this listing please let us know.
See all patrols for U-553
* These are officers that later became commanders themselves.