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 autorotation and during axial and oblique flow are considered.
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by James R. Hansen, - NASA History Office
A documentary journey into the history of aerodynamics in America. How ideas about aerodynamics first developed and how the technology evolved to forge the airplane into the revolutionary machine is the epic story told in this book.
by Theodore A. Talay - NASA History Division
This book is an introductory course in aerodynamics. It provides more than a layman's treatment of the subject but not the detail as taught in many individual courses on the college level. The result is a highly qualitative, illustrated set of notes.
by Laurence K. Loftin, Jr. - United States Government Printing
This volume traces the technical development of the airplane from a curiosity at the beginning of World War I to the highly useful machine of today. Included are significant aircraft that incorporated important technical innovations.
- US Government Printing Office
The purpose of this advisory circular is to make amateur-built/ultralight aircraft pilots aware that test flying an aircraft is a critical undertaking, which should be approached with thorough planning, skill, and common sense.