Tragic Army Black Hawk helicopter crash claims 9 lives in Kentucky training mission.

The Black Hawk is a versatile twin-engine, four-bladed, medium-lift, utility helicopter developed for the U.S. Army since the 1970s by Sikorsky Aircraft. It is used for a wide range of missions including cargo lift, combat assault, special operations, search-and-rescue, medical evacuation, aerial firefighting, and VIP transport. The U.S. Army operates more than 2,100 of the aircraft, as well as other U.S. forces and the militaries of dozens of other nations. The recent training accident in Kentucky resulted in the death of nine soldiers.