Date Number Type Captain Casualties Sunk by
4 May 1943 U-209 VIIC Heinrich Brodda[31] 46 Catalina Flying-boat of No. 5 Squadron RCAF
5 May 1943 U-638 VIIC Oskar Staudinger[32] 44 HMS Sunflower
5 May 1943 U-531 IXC/40 Herbert Neckel[33] 54 HMS Vidette
6 May 1943 U-192 IXC/40 Werner Happe[34] 55 HMS Loosestrife
6 May 1943 U-125 IXC Ulrich Folkers[35] 54 HMS Oribi, HMS Snowflake
6 May 1943 U-630 VIIC Werner Winkler[36] 47 HMS Vidette
6 May 1943 U-438 VIIC Heinrich Hensohn[37] 48 HMS Pelican