Bloody Winter

abandoned ship aboard Admiral ahead aircraft Allied American arrived Asdic contact attack badly battle bearing began BIBB boat bridge British BURZA CAMPBELL captain CINCWA close Coast Guard column conning tower convoy corvette cutter damage darkness deck depth charges destroyer dived Doenitz dropped Enigma machine escort carrier escort commander escort groups explosion fight fired fleet forced Forstner freighter GEMINI German Greenland heavy seas HF/DF Hvalfjordur hydrophone Iceland INGHAM Kapitänleutnant Karl Doenitz knots LOBELIA MALLORY merchant ships merchantmen miles astern minutes later months naval night North Atlantic ocean operator ordered Otto Kretschmer patrol line periscope picked port radar radio rafts range reported rescue vessel RESTIGOUCHE Royal Canadian Navy Royal Navy sailed screen sighted signal sinking skipper speed SPENCER Sqdn starboard starshells station submarine submerged sunk surface survivors tanker target torpedo turned U-boat Command USCG/National Archives watch officer weather wolf pack yards