What we know about Army helicopter, regional plane crash
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What is a Sikorsky UH-60 Black Hawk?
A Black Hawk helicopter can transport up to "12 fully equipped, seated troops in combat," according to Lockheed Martin, the weapons company that builds the helicopter. There are about 5,000 of these helicopters in use by the United States Military.
What to know about the Sikorsky UH-60 Black Hawk — a global workhorse
The UH-60 Black Hawk is the helicopter involved in a crash with a passenger jet on Wednesday night near Reagan National Airport in Washington, D.C.