Originally Posted by
TopBunk
The 747-400's didn't have CPDLC when I retired in 2009, but basically it replaces the need for HF reports/requests every 10 degrees with automated data reports.
I remember crossing in the military in the 1970's. The guy in the left seat told me 'Son, in five years these position reports will all be on the satellite, we won't have to do HF anymore.'
