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[[Image:Sea_King.jpg|right|thumb|300px|Westland ''Sea King'' helicopter of 845 Naval Air Squadron, [[Royal Navy]] ([[Serbia]], 1997)]]

[[Image:Sea_King.jpg|right|thumb|300px|Westland ''Sea King'' helicopter of 845 Naval Air Squadron, [[Royal Navy]] ([[Serbia]], 1997)]]

A '''helicopter''' is a rotary wing [[aircraft]].  The first practical helicopter was developed in 1939 by [[Russian]]-born [[Igor Sikorsky]] (1889–1972).  

A '''helicopter''' is a rotary wing [[aircraft]].  The first practical helicopter was developed in 1939 by [[Russia]]n-born [[Igor Sikorsky]] (1889–1972).  

Helicopter flight was the first flight envisioned by man. In fact, the ancient [[Chinese]] were playing with a hand-spun toy that rose upward when revolved rapidly and as early as the mid 1500's, the great [[Italian]] inventor [[Leonardo da Vinci]] had used his fertile mind to make drawings of a machine that we now know as the helicopter.<ref> [http://www.helis.com/ Helicopter History Site]

Helicopter flight was the first flight envisioned by man. In fact, the ancient [[Chinese]] were playing with a hand-spun toy that rose upward when revolved rapidly and as early as the mid 1500's, the great [[Italian]] inventor [[Leonardo da Vinci]] had used his fertile mind to make drawings of a machine that we now know as the helicopter.<ref> [http://www.helis.com/ Helicopter History Site]