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Canada's all-purpose VTOL transport that could have changed everything; the Canadair CL-84 Dynavert

19:47

Helicopter. c. 1940

14:41

The Giant Airliner With Cabins In Its Wings | Junkers G38 [Aircraft Overview #19]

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This Could’ve Changed Air Travel Forever

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What Went Wrong With Germany's Insane Hover Transport?

19:34

Ling-Temco-Vought XC-142A Promo Film - 1967

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Bell Helicopter 1944 Progress Report.mpg

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How a World War Two Submarine Works