Why are you told to turn off electrical appliances while the plane is taking off?

Answer 1

Some electronic devices emit a slight signal that could possible interfere with the aircraft's nav and communication electronics. The FM radio band, for example, is very close in frequency to those frequencies that the aircraft VHF nav and communication radios use, particularly the ones used for the precision Instrument approaches.
The cell phone restriction is an FCC limitation due to being in touch with multiple cell towers at lower attitudes.
Rather than list individual devices a general ban is imposed.

Answer 2

some home equipment are not getting grew to become off thoroughly with the help of the on/off change. TVs extremely. interior the olden days you had sound yet no photograph for the 1st 20 or 30 seconds after the television replaced into grew to become on, it took that long for the photograph tube to heat up. we've "instant on" TVs that save a small contemporary flowing interior the photograph tube to maintain it heat. My pc's flat panel video exhibit has a sprint yellow easy on each and all the time it relatively is plugged in, even whilst it relatively is off. all varieties of pc controlled home equipment use some skill whilst off to maintain the pc memory from clearing. however the quantity of capability is somewhat small. to truly save electricity, get a extra useful refrigerator or air conditioner, or set the thermostat larger in summer season to apply the A/C much less, or perhaps do without/C altogether (no longer me although, I stay in Texas, besides the shown fact that folk lived right here previously A/C replaced into invented, we are such wimps). and don't use electric heaters in any respect. heaters, fridges and A/Cs use hundreds of circumstances extra skill than an "off" television ever ought to.

Answer 3

mainly they want electronic communication devices off so they can communicate more easliy with the airplane people for takeoff that way ther is no destructive interference. even though things like a cd player does not send signals through the air they dont really have a way of saying turn off all communication devices so they just say to turn off anything electronic since most electronic things are communication devices like cell phones :)

Answer 4

They ask you to turn off and stow everything to prevent it from flying about the cabin in the event of a crash or emergency landing, and to help keep you attentive and not distracted in case you need to hear emergency instructions.

Answer 5

Because they might interfere with the flight instruments of the plane. If you're listening carefully the flight attendant actually says: "during the flight please turn off all electrical equipment because they might interfere with the plane's flight instruments" so next time pay more attention:P

Answer 6

as a precaution "only", so as not to interfere with "computers onboard", used for flying, the aircraft.