From Popular Mechanics:
An Army Black Hawk helicopter crashed on a Navy ship in Norfolk, Virginia during training, killing one service member and injuring eight.
One service member was killed, and eight injured, when a Black Hawk helicopter crashed into a naval vessel off the coast of Virginia last night. The accident occurred during a joint Army-Navy exercise, as personnel were rappelling from the transport chopper onto the deck of the USNS Arctic, a type of fast combat support ship that's typically used as a stand-in for merchant vessels during training maneuvers. Another Army helicopter involved in the exercise ferried the injured service members to Sentara Norfolk General Hospital.
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My Comment: In the videos, these men and women make it look so easy. In reality .... it is not.