Diary March 4, 1943
WW2 War Diary for Thursday, March 4, 1943:
S81 works up to her full speed of 39 kts. The low profile of the E-boats was a considerable advantage in the nocturnal melees along the Channel coast.
North Sea: Unsuccessful night sortie by German E-boats off Great Yarmouth: S-70 mined and sunk; S-75 sunk by Spitfire and Typhoon fighters.