How many crew are needed to keep a plane flying?
Now I know that a 757 for example might fly with a senior and 4 cc, but how many crew must an airline typically employ to keep such a plane flying on long haul with minimum 3 day stop overs?
This obviously has to take account of crews on rest at home and at the destinations, and rest days holidays, sickness etc......
My best guess is 5 sets of crew = 30 but I may be way out!!!