inner marker en · NOUN
Meanings
- A type of marker beacon placed to indicate when an aircraft crosses the runway threshold of a Category II or Category III ILS or IGS approach, triggering a continuous visual and aural sequence of rapid-fire Morse code dots from the marker beacon receiver in the cockpit of an aircraft flying over the marker.
Forms
| Spelling | Features | Labels | Source |
|---|---|---|---|
| inner markers | Number=Plur | lexicographic |
Coordinates
fan marker · outer marker · middle marker