The system helps pilots land when they don't see the runway

Without an automatic navigation system, no pilot can safely land in zero visibility.

Fog is one of the most dangerous elements for pilots when landing. In the dense fog and zero vision, they had to rely on the landing assistance system (ILS) to land safely in the airport, according to Popular Mechanic.

The ILS (Instrument Landing System) system is a collection of radio signaling stations located near the airport and along the runway approach. It allows aircraft to land in case the pilot cannot see the runway.

Automatic navigation system helps aircraft land safely in dense fog conditions.

The receiver on the aircraft will receive signals from ILS, inform pilots of distance to the top of the runway, as well as changes in altitude and flight direction so that they can safely fly. In low-visibility or night conditions, the pilot will rely on ILS instructions to land.

If the visibility is too poor, the automatic landing system will be activated. The plane will find its way to the runway and land without a driver. In this case, the pilot is responsible for monitoring the parameters of the aircraft and is ready for unexpected situations.

ILS testing process began in 1929 in the United States. The first landing with ILS assistance took place on January 26, 1938, when Pennsylvania Central Airlines' Boeing 247D landed in Pittsburgh in the middle of a blizzard.

The system was allowed to be installed at 6 airports in 1941. The first automatic landing with ILS took place in March 1964 at Bedford, England airport.