| Answer | Crossword Clue |
|---|---|
| navaids | NAVAID, a navigational device |
| navaid | a navigational device |
| derm | navigational device for making a nearby object conspicuous on a radarscope |
| derms | navigational device for making a nearby object conspicuous on a radarscope |
| navaid | a device or system (as a radar beacon) that provides a navigator with navigational data |
| navaids | a device or system (as a radar beacon) that provides a navigator with navigational data |
