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History of the Helicopter (1952)

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20 Failed Homemade Helicopter

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Young Inventor’s ‘Helicopter Car’ Has One Small Problem

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First helicopter attempt

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Best invention #aviation #helicopter #flying #drone #shorts

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15 INSANE Homemade Helicopters - BAD IDEA

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History of the Helicopter | Shell Historical Film Archive

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School Dropout Trying To Build Low Cost Chopper Dies After Being Hit By Rotor Blade During Trial

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Military Helicopter Invention Documentary - History Of Helicopters - BBC Documentary

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US Testing The Most Powerful $3 Billion Helicopter Ever Created

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A Most Useful Invention: The Helicopter

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The Helicopter: Everything You Need to Know

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The GENIUS who Invented The Helicopter At The Age Of 12

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Money Talks: Ugandan inventor builds home-made helicopter

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80 Years Old Man Invented Plane - Helicopter - Test Drive

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