Maxim recalls his father’s sketch of a helicopter in 1856, then sets out what he learned from his own costly experiments: the flight of birds and air currents, kites, screw propellers, the measurement of wind and the great steam-powered machine he tested in the 1890s. He assesses the new aeroplanes of his day.
A fascinating record from the dawn of aviation by one of the age’s great inventors. Download the free EPUB.