Well in general the schedules at Kalitta are 17 on... 13/14 off... 14 during 31 day months... certainly there are lines or bidding issues which result in less time off between a line... but you will get your 13/14 each and every month unless you work days off.. which.. most of us don't. As for why its that way... the company pays our way to work.. ie., they buy me an airline ticket (albeit coach class) to and from work each and every month. They would prefer NOT to have to do that 2 or 3 times a month.... plus... in an average line of 17 days flying you very well may spend 90% or more of those days outside the US.....