| Answer | Crossword Clue |
|---|---|
| SONAR | Submarine-locating device. |
| RADAR | Locating device |
| RADAR | Electronic locating device. |
| RADAR | Device for locating aircraft. |
| RADAR | Radio detecting and locating device. |
| SONAR | Device for locating underwater objects. |
| SONAR | Echo device for locating submarines. |
| LIMEYDETECTOR | Device used by the Spanish Armada for locating their enemy? |
