Whats the difference between the aircraft GPS reciever and the Gps in the cellphone
Why cant we use Cellphone for gps in flight ?
That's such a bad question to ask, in my opinion. It's WAY too open-ended. I could write a 10,000 word essay on that. I was taught as an instructor that good questions were clear, concise and specific. That question isn't. Because it's so open-ended you've now received a ton of different answers below! I can understand why you're confused about the question.
Airbourn gps aims to acquire 4 satelites to triangulate lat, long positions and also altitude.
Triangulate is not correct. GPS uses trilateration -
Trilateration - Wikipedia, the free encyclopedia