Sorry. I didn't actually bother to read anything before I went and downloaded the first thing in sight.
Assume I want a system that allows you to plan routes on your home PC, upload it to a GPS-capable palmtop, track your position on aero charts, and get in-flight information about various ATZs you are flying through and altitude changes you must make, etc. based upon your actual position rather than your planned route. Unless there is a system I can afford that does all of this, where can I start looking for the data to build my own?
Thanks
p