70-years ago today…
There were 72 U-boats at sea. The Battle of the Atlantic was most definitely not over.
U-617, a Type VIIC U-boat, on its 7th war patrol, Kptlt. Albrecht Brandi commanding, attacked HMS Puckeridge (L108) with two torpedoes approx. 40-miles east of Gibraltar. There were 62 killed and 129 survivors. Puckeridge’s wreck lays at 36º06´N, 04º44´W.
U-515, a Type IXC U-boat, on its 5th war patrol, Kptlt. Werner Henke commanding, after tracking the merged convoys OS-54 and KMS-25 for the whole day, closed in to attack but was sighted and had to dive. Accurate depth charging by the River-class frigate HMS Tavy (K272) drove the boat down to 820ft (50m), and caused severe damage. Henke managed to escape and broke off the patrol, reaching Lorient on 12 Sept.
HM submarines strike back in the Mediterranean.
HMS Sportsman (P229), Lt. R. Gatehouse, DSC, RN commanding, sank the Italian fishing vessels Angiolina P (39 GRT) and Maria Luisa B (37 GRT) with gunfire in the port of Aléria, Corsica, France.

HMS Sportsman (P229), S-class submarine serving in the Mediterranean, sank Italian shipping on 6 September 1943.
HMS Universal (P57), Lt. C. Gordon, RN, sank the Italian auxiliary patrol vessels V 130/Ugo (114 GRT) and V 134/Tre Sorelle (178 GRT) with gunfire west of La Spezia, Italy.