Rotation fails when the timetable belongs to an airline.
Offshore and remote site crew changes work on a series programme, where the departure schedule follows the operation rather than a published timetable, priced as a programme rather than flight by flight.
Two things shape the routing. The crew duty day, which caps a two sector day at 13 hours from reporting to the aircraft coming to rest. And the field itself, where runway length and the absence of ground equipment often decide the aircraft.
