Helicopters before helicopters

Covering vertical-rising aircraft as envisioned from the earliest concepts to the period when the helicopter became practical machine in the 1930s, this text focuses on the many pioneering ideas and efforts that led to the creation of today's modern helicopter, whilst exploring possibilities fo...

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Bibliographic Details

Main Author:	Liberatore, E. K. (Author)
Format:	Book
Language:	English
Published:	Malabar, FL Krieger Publishing 1998
Subjects:	Helicopters > United States > History
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