Milestones in Science & Engineering - Igor Sikorsky and the Helicopter

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Published 24 Mar 2011
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Milestones in Science & Engineering  Episode: 79 Igor Sikorsky had been pursuing a dream: the construction ...
Milestones in Science & Engineering  Episode: 79 Igor Sikorsky had been pursuing a dream: the construction of a helicopter In 1941 he succeeded in constructing the first precursor of a helicopter based on the principle still used today.
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