When we are told to put our phone on airplane mode or switch it off just before takeoff, many questions often come up. We wonder: can a simple phone really harm such a large aircraft? Could a phone accidentally be left on and cause a mid-air crash? If these questions sound familiar, today we will explain the facts clearly. Let's explore the science behind this and understand the actual purpose of airplane mode during flight.

Airplanes depend heavily on radio-based communication and navigation systems. Pilots stay in constant contact with air traffic control on the ground for updates on routes, weather, and altitude.

When your phone is in normal mode, it continuously attempts to connect with the nearest cellular tower by sending signals. As the plane climbs higher, the phone moves further from the tower but keeps trying to maintain the connection, which can interfere with pilot and air traffic control communication.

While your phone's signals won't cause a crash, they can disrupt communication and cause inconvenience for pilots. When multiple passengers have their phones on, the radio waves can produce a loud buzzing or clicking noise in the pilot's headphones.

If pilots are receiving critical instructions from air traffic control during this noise, it can hinder communication, posing safety risks.

Aircraft are equipped with instruments that use radio waves to measure their distance and direction from the ground. Although modern planes are shielded against such signals, safety regulations advise against taking any risks.

Switching your device to airplane mode disables all wireless transmissions, preventing calls or messages during flight.