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AIzaSyB4mHJ5NPEv-XzF7P6NDYXjlkCWaeKw5bc
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20 St. 2 Min, 14 Sept 1939 Jahr - World’s 1st practical helicopter, the VS-300 designed by Igor Sikorsky
Zugefügt zum Band der Zeit:
Timeline of 1939
By
Abraham Grahqm
31 Aug 2017
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810
Datum:
20 St. 2 Min, 14 Sept 1939 Jahr
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~ 86 years ago
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