. . . "\\\"Cutie\\\" acoustic homing torpedo" . "Acoustic torpedo" . "Acoustic torpedo" . . "acoustic" . . "passive acoustic" . . . . . "passive acoustic torpedo" . "acoustic homing" . . . . "active acoustic" . . "acoustic homing torpedo" . . "acoustic steering" . . "acoustic torpedo" . . "acoustical homing torpedo" . . "Acoustic homing torpedo" . . "acoustically home-in on ship propellers" . "guided torpedo" .