Two categories of paid duty--inactive (IDT inactive duty training) and active. Inactive is "pay" only, not allowances; you can get two periods per day. So, on a drill weekend you get four IDT periods for pay, each one of four hours. Divide your monthly pay (base plus flight pay by 30 equals one IDT. Flight crew get Additional Flight Training Periods, they work the same as drill periods; it just pays for your flying continuation training. IDT must be done in the US, but there are exceptions.

Active Duty is just like AD, you get pay, allowances, susistence, the lot BY THE DAY. Say, the unit flies a three-day trip and you sign up for it. You could be called to three man-days for the training missions. Complete the mission, submit pay paperwork, KA-ching, three days pay. Annual tour is AD, but is the minimum AD you must do each year, pay is the same as AD.

The rules are the same throughout the ARC, but it does depend on the budget, unit mission. For example, air lifters have been in constant demand--lots of AD. Other missions might not be in demand--less money, less pay. I had guys that have had nearly 10 years of AD in the C-5. Not many units, lots of demand. The fighter OPSTEMPO, I'm guessng here, many units, less demand, less money.

Questions?

GF