I'll hang back and wait for somebody who knows, to answer. Or, I may go look it up. For use around the RG (Medina and Hammurabi Divisions), I beleiev they are "close air" support via attack helicopter, and maybe fixed wing (A-10)
16,000 soldiers, Fort Cambell. 270 helicopters.
The 101st is really Airborne in name only. The 101st traded in their parachutes for helicopters in 1960's, officially they are now called the 101st Airborne (Air Assault). The division is essentially a light infantry division that has enhanced helicopter assets. The division has about 300 helicopters (far more than any other division in the Army) , which enables it to move the entire division by air. All members of the division must attend the Air Assault school at Ft. Campbell, where the soldiers learn how to repel from helicopters, rig cargo to helicopters and learn about the specifications of the choppers in the division. When a soldier completes the AA school he/she is awarded Air Assault wings.