How to connect to FlightGear:

1. Copy file vfrflight.xml to FG_DATA dir into Protocol directory
2. Start Vfrflight and open connection to Flightgear. Select free UDP port. For this example we will use 3333.
3. Start Flighgear with commandline option: --generic=socket,out,1,localhost,3333,udp,vfrflight

   it means:
   - connect to localhost using UDP protocol and port 3333. Please replace 3333 if you are using different port.
   - use vfrflight protocol definition
   - update data once (1) per second

FlightGear implementation was implemented by Slawomir Mikula.