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Who invented helicopter?

Igor Sikorsky

Igor Sikorsky

Igor Sikorsky
Igor Sikorsky (May 25, 1889 - October 26, 1972), born Igor Ivanovich Sikorsky, the Ukrainian-American pioneer of aviation in both helicopters and fixed-wing aircraft
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Who is the inventor of (has invented) helicopter (an aircraft without wings that obtains its lift from the rotation of overhead blades)?

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External web pages (using standard web search):

History of the Helicopter and Igor Sikorsky
Igor Sikorsky is considered to be the "father" of helicopters not because he invented the first. He is called that because he invented the first successful helicopter, upon which ...
http://inventors.about.com/od/hstartinventions/a/helicopter.htm
Who Invented The Helicopter | Who Invented The... Inventors ...
History of the Helicopter Helicopters look nice hovering around, but where did they come from? A long time ago in the 16th century, Leonardo da Vinci
http://whoinventedthe.com/helicopter/
Who Invented the Helicopter? | eHow.com
Who Invented the Helicopter?. The challenges faced by the many individuals who contributed to the creation of the helicopter were vast. From early toys and models to the ...
http://www.ehow.com/about_4588469_who-invented-helicopter.html
Who invented the helicopter
Many people worked on various kinds of helicopters over the years, so no one person invented the helicopter. The single most important advance in helicopter design was by Juan ...
http://wiki.answers.com/Q/Who_invented_the_helicopter
Who Invented The Helicopter?
Transport Question: Who Invented The Helicopter? Igor Sikorsky is the first who invented the helicopter in 1940. But Leonardo da Vinci was the first who had an idea of a ...
http://www.blurtit.com/q400035.html

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