instrument landing system
English
Noun
instrument landing system (plural instrument landing systems) (abbreviated as ILS)
- a collection of radio navigation aids used by pilots for approach guidance to a specific airport runway, especially when visibility is limited
Coordinate terms
- VHF omnidirectional range (VOR)
- precision approach landing indicator (PAPI)
- approach lighting system (ALS)
Related terms
- microwave landing system (MLS)