Good work anon. Question for you. How many trips did the plane make around the airport- 3 or 4? Having trouble determining. Will help my dig.
Okay assuming 3 passes
1,2,3 =ABC
Rot13 =NOP
"NOP protocol commands
Many computer protocols, such as telnet, include a NOP command that a client can issue to request a response from the server without requesting any other actions. Such a command can be used to ensure the connection is still alive or that the server is responsive."
Reread last sentence.
Synchronicity -At bottom of Wikipedia page I quoted just now