. "1942-04-28" . . . "4.7" . "Sunk on 9 August 1943 in the North Atlantic in position, by depth charges from USNGrumman Avengeraircraft." . . . . . . "67.1" . . . . . . . "German submarine U-664" . . . . . "1941-07-11" . "1942-06-17" . . "U-664" . . "7.69E8" . . "6.2" . "8.71E8" . . . "1940-08-15" . "9.6" . . "German submarine U-664" . . "''U-664''" . . "32.7804" .