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How was a helicopter used when first invented?

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  • How was a helicopter used when first invented?


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These attributes allow helicopters to be used in congested ... Young invented the ... which became the first helicopter certified for civilian use in ...
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Positive: 87 %
The very first piloted helicopter was invented by Paul ... Russian born Igor Sikorsky began work on helicopters as early ... Terms of Use ...
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NOTES ON HISTORY OF HELICOPTERS ... is credited with building the world's first helicopter ... Hollywood's action movie Blue Thunder used a modified and ...
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Positive: 87 %
... does anyone know when the first autopilot ... When was the autopilot invented ... Or was it one of those things like Da Vinci's helicopter, ...
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When was the first bus invented? ... When was Helicopter invented? When was Steam Boat invented? When was the steam engine invented? When was Mars Rover ...
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Positive: 68 %
Nylon is invented 1935. ... Carothers' team first investigated the acetylene family of chemicals. ... (commonly used in wetsuits) ...
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Positive: 45 %

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