London: Her Majesty's Stationery Office, 1968,
First Edition. octavo, brown cloth in dust jacket. (x); 214pp. Her Majesty's Stationery Office, Item #19030
Frontispiece portrait of Ader. Illustrated with photographs and drawings in the text. This study of Ader and his work clarifies the question of the first take-off made on October 9, 1890, by Ader in his airplane Eole which was the greatest achievement of his career. By putting an end to the legends, it defines the negative results of the tests in 1897 with the Avion III. It also makes a technical study of the ideas and principles set out by Ader in his celebrated patent of 1890, which have been interpreted in a superficial and inaccurate fashion. Slight shelf wear, one inch closed tear to jacket, tiny flaw to the front inner hinge - the paper at the hinge was improperly folded at the bottom half inch - not bad at all. Still a very nice copy in inclipped jacket.