There are anecdotal reports that some phone/tablet types cause interference (namely the iPad). With the planes avionics.Though to indemnify myself, I would state that Federal requires following the instructions of the cabin crew, I have left phones on in airplane mode by accident and one time on an trans-Atlantic flight, a laptop with WIFI turned on. I think most of it is for safety reasons. Takeoff and landing are the two most dangerous parts of the flight, I'm sure the passenger in 23C won't enjoy getting hit in the face by your phone if take-off is bumpy.
This is because phones cause friction in the planes communication radios, making it hard to get through to the towers to receive information. They ask you to turn them off specifically during take off and landing because this are the most crucial times for them to receive information to get you down or up safely.
7 months ago
Last edited at 8:28PM on 8/7/2013
It's is a control issue making sure they have some control ,go to jail and you will see same control in the first five minutes. Authority always needs to be established early and often aka seat in upright trays up! Ps it is a bus with wings.