El Al is the only commercial airline to equip an anti-missile defence system in its planes to protect them from surface-air missiles and is considered as one of the safest airlines.
The working mechanism of the anti-missile defense system…
When a plane comes under attack, the system responds by firing flares that are designed to divert the heat-seeking missiles. More specifically, the planes will be equipped with a Doppler radar system (a radar system which uses the doppler effect to produce velocity data about objects at a distance).
This radar system is made up of four antennas; one at the front, two at the sides, and one at the back which gives 360-degree radar coverage around the aircraft.
Fully automated system…
It is a completely automated system in which there is no pilots involved. If any missiles come in the radar of the aircraft, within seconds the computer fires the flares firing at different angles which will help to divert the direction of the missiles.
The system is fully automated because the reaction time should be less than 1 or 2 seconds but the pilot might be in shock so they cannot react quickly within this time frame. And the pilot will get information regarding the attack once the threat is over.