"German submarine U-923" . . . "1943-10-04" . . "67.1" . "1941-06-06" . . . "''U-923''" . "6.2" . "1943-08-07" . . . . "4.7" . . "9.6" . . . . . "1942-02-21" . "8.71E8" . . "German submarine U-923" . "Sunk on 9 February 1945" . . . "U-923" . "32.7804" . . . "7.69E8" .