by D. I. Bazov
Publisher: NASA 1972
Number of pages: 295
Principles of helicopter flight under various conditions are reviewed, giving special attention to the operation of the main rotor. A brief history of helicopter development is presented, together with a summary of the main components of a helicopter and a classification of the various types of helicopters. The characteristics of the main rotor and its operation during auto rotation and during axial and oblique flow are considered.
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