I'm a "part time" Air Driver that worked a year's worth of 60 hour weeks in 2020. Not so much in 2021 so far. I think the main appeal to management is flexibility. When they don't need us, they send us home after our air loop is done. They use as utility players when they do need us. After an air run, they have us chase down misloads and deliver them or take out bulk that didn't fit and is left in the building. Maybe somebody's two wheeler broke and they need me to bring out a new one. A driver needs help, so take 50 stops off of them. Bulk runs, etc. I have a 3 1/2 hour guarantee, not an 8 hour one.