Originally Posted by
air_boi
What do you mean by a "double change"?
Aircraft 1 changed to
Aircraft 2 changed to
Aircraft 1
(rinse and repeat).
In reality Cathay also use Amadeus and there are aircraft archetypes used, rather than precise aircraft numbers. When the aircraft is actually assigned to the trip, 72 hours for BA, 48 hours (I think) for Cathay, there can be further changes.