How is the North Atlantic Track System updated in FMS aircraft, since the route system changes daily?
If a transatlantic company route is loaded, do the Track waypoints have to be entered manually? Or does the airline have some way to update the Tracks for all of its aircraft daily?
Also, what is the most commonly used "code" for a track in a flight plan? For example, if a North Atlantic crossing starts at, lets say, SAILE, for a Track W crossing and ends in Shannon (SNN?), would it be something like SAILE.NATW.SNN, or SAILE.TRACW.SNN???