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A '''helicopter''' is a rotary wing [[aircraft]].  The first practical helicopter was developed in 1939 by [[Russia]]n-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 1500s, 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]

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