This concept for a high-speed personal helicopter was an early expression of what would become in the years immediately after World War II an extremely popular vision of the future. — the 1943 personal helicopter of tomorrow, drawn by Alex Tremulis
This concept for a high-speed personal helicopter was an early expression of what would become in the years immediately after World War II an extremely popular vision of the future. — the 1943 personal helicopter of tomorrow, drawn by Alex Tremulis
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