Plane Radar System: Whenever news of a plane accident comes, the first question that arises is whether the plane disappeared from the radar? Generally, passengers think that disappearance from radar means sudden disappearance of the plane, but in reality there can be many technical reasons behind it.
How does radar system track the plane?
Air traffic control uses two types of radar to track aircraft. The primary radar tells the location of the plane from the signal returned after colliding with it, while the secondary radar works on the signal received from the transponder installed in the plane. In most cases, if the transponder stops working, the plane may disappear from secondary radar.
Transponder failure is the biggest reason
The aircraft’s transponder sends information like its identity, altitude and speed to the control room. This system may shut down in case of technical fault, power failure or fire. In such a situation, the plane suddenly appears to disappear from the radar screen while it is still present in the air.
Weather and environment can also be the reason
Conditions like severe storm, heavy rain, lightning or solar activity can also affect radar signals. In some areas, radar coverage also becomes weak due to geographical reasons, especially while flying over the sea.
Danger increases due to disturbances in navigation system
If the plane’s navigation system starts showing wrong data, the pilot has no idea of ​​the correct direction and altitude. Due to wrong sensor readings, wrong decisions can be taken which can lead to an accident.
Can a plane be intentionally made to disappear from radar?
In some rare cases, human error or deliberate shutdown of the system can also cause the plane to disappear from radar. However, such systems are installed in modern aircraft which immediately give information about any unusual activity. The disappearance of a plane from radar is not always a mystery, but it could be due to transponder failure, weather, technical fault or coverage limitations.
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