Originally Posted by Alan Shore

Delta has the following:

Duty rig -- 1 for 2 (1 for 1 .75if on duty past 2200)
Trip rig -- 1 for 3.5
Duty period average -- 5:15 per qualifying duty period (does not apply to deadhead-only duty periods); regular lineholders only
Reserve duty period average lookback -- 5:15 per qualifying duty period computed at end of month
Average Daily Guarantee -- 4:30 per calendar day of rotation (first day does not count if rotation reports 2200 or later; last day does not count if rotation releases 0200 or earlier)