Originally Posted by sobore
I have a Garmin which I would love to use on a plane. I ask, they say NO. Oddly enough my friend has been permitted to use his several times in flight.
Every flight crew is different and when in doubt they say 'no'. Personally, I go by the addage, 'it's easier to ask for forgiveness than permission'. It is an electronic device that does not transmit and poses no risk to the aircraft navigational systems.