What you need to know about the Instrument Landing System (ILS) | Singapore, Malaysia | What exactly is ILS and why has it become the subject of a dispute between Singapore and
![Modernization of instrument landing systems ILS/DME 22 „IBG” and ILS/DME 09 „IWN“ CAT I at Burgas and Varna atc Centres - BULATSA Modernization of instrument landing systems ILS/DME 22 „IBG” and ILS/DME 09 „IWN“ CAT I at Burgas and Varna atc Centres - BULATSA](https://www.bulatsa.com/wp-content/uploads/2020/02/grafika.png)
Modernization of instrument landing systems ILS/DME 22 „IBG” and ILS/DME 09 „IWN“ CAT I at Burgas and Varna atc Centres - BULATSA
![Instrument Landing System (ILS) area at London Heathrow Airport, UK. Pilot navigation approach aid guiding aircraft in to land safely Stock Photo - Alamy Instrument Landing System (ILS) area at London Heathrow Airport, UK. Pilot navigation approach aid guiding aircraft in to land safely Stock Photo - Alamy](https://c8.alamy.com/comp/2G7RAGY/instrument-landing-system-ils-area-at-london-heathrow-airport-uk-pilot-navigation-approach-aid-guiding-aircraft-in-to-land-safely-2G7RAGY.jpg)