Aircraft: Its development in war and peace and its commercial futures
Название: Aircraft: Its development in war and peace and its commercial futuresАвтор: Evan John DavidИздательство: Charles Scribners SonsСтраниц: 438Формат: PDF Размер: 27 МбКачество: ХорошееГод: 1919Язык: английский The object of this book is to explain the fundamental principles of aeronautics and to point out the historic development of both the heavier-than-air and the lighter-than-air craft. The […]