Why do you need to turn off all your electronic devices before an airplane takes off and lands? [closed]

Why do you need to turn off all your electronic devices before an airplane takes off and lands?

air-travel

Best Answer

Electrical devices could potentially interfere with the electronics of the plane. (Find a non-digital VHF radio. Put a mobile phone next to it. Every now and then the radio reception may be degraded by a buzzing sound.) The effects of any interference would be most serious if the plane is near the ground, when the pilots have little time to react to problems.

With a properly designed and properly constructed modern device, that is almost impossible. With an improperly designed or damaged device, it becomes somewhat more likely. So the rules are there to reduce this risk.

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Why is it necessary to turn off your phone on a plane?

We're asked to turn our devices off or to flight mode because of electromagnetic interference from phones, tablets, e-readers, electronic headsets, and more. Since some planes were built before these became a thing, it took a while for the industry to make sure it was entirely safe to use them.

Do you have to turn off electronics on an airplane?

We are warned that cellular service must be turned off because device transmissions interfere with the aircraft's navigational equipment.

Why do they turn off airplane lights for takeoffs and landings?

\u201cDuring nighttime takeoffs and landings, you dim the lights so that you have some night vision going on.\u201d Dimming cabin lights during the day, then, is less necessary, but does conserve some engine power as the plane hurtles toward flight.

Why does the FAA require that some passenger devices with oscillators be turned off during takeoff and landing?

"There are still unknowns about the radio signals that portable electronic devices (PEDs) and cell phones give off," say FAA documents. "These signals, especially in large quantities and emitted over a long time, may unintentionally affect aircraft communications, navigation, flight control and electronic equipment."

Why Can't You Use Phones on Planes?

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