Will all gps programs work in an airplane?
A GPS will work anywhere it can receive adequate signals, and assuming you have a decent antenna, any GPS will work in an airplane. However, a GPS that is not programmed for aviation uses will not be nearly as useful as one that is. A car GPS or trekking GPS may give you lat/long readouts, which may be of some use in an aircraft, but they will be of limited use for a flight.
