I average around 20 hrs total a tour on the XLS. I believe the Sovereign is about that too. The Latitude is likely around 30 total hours in a tour as it is newer with fewer breaks per cycle, and the shear number of them. Crews can just hop-scotch to the next one if their plane goes down.
Btw..The crew brief at the beginning of the week includes not doing the company’s jobs, not flying a broken plane, not flying tired or hungry. Having said that, when you have a good bird and similar crew schedule, you’re guaranteed some loooong duty days and close to 30 hrs total for the week.
‘The XL has a great group of folks flying that bird.