Let's say I want to fly from Europe to USA.
Then (probably):
- I'm filling flight plan message(FPS) and it goes to Eurocontrol system.
- It is somehow transmitted to FAA. How?
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Sign up to join this communityFlight plans are distributed to all air traffic control units that will be providing services along the route over the Aeronautical Fixed Telecom Network (AFTN).
Nowadays most communications between Europe and the US is over AMHS (https://en.wikipedia.org/wiki/Aeronautical_Message_Handling_System)