La Résistance de l'air et l'aviation. Expériences effectuées au laboratoire du Champ-de-Mars

First edition, with a frontispiece photograph depicting Gustave Eiffel in his laboratory, and 28 plates outside the text, some folding (an additional copy of plate 26 is included).

Publisher’s binding in white cloth-backed boards with corners, flat spine showing some soiling and small tears at head and foot, printed paper label mounted on spine, printed title on upper board, corners slightly rubbed.

Pleasant internal condition.

A light water stain in the left margin of the frontispiece and at the foot of the lower cover, some soiling to the bottom of the upper cover, and a few pencil annotations in the margins.

The author presents the results of experiments carried out at the Champ-de-Mars near the Eiffel Tower: 1. Installation of the laboratory and methods used (velocity measurement, aerodynamic balance, centres of pressure, pressure distribution on a plate surface, etc.). – 2. General results (square, rectangular and curved plates, parallel surfaces, cylindrical bodies, pressure distribution). – 3. Aeroplane wings (Esnault-Pelterie and Nieuport monoplanes; Wright, Maurice Farman and Bréguet biplanes). The volume is illustrated with 28 plates including diagrams, photographs, graphs, and technical schematics relating to these studies. A particularly interesting copy, annotated by a scientist named René Arnout, author of a paper published in 1910 in the Comptes rendus de l’Académie des sciences ("L’équilibre longitudinal et la courbure des surfaces portantes des aéroplanes"; see his handwritten note on p. 20 of the present volume).

The author presents the results of experiments carried out at the Champ-de-Mars near the Eiffel Tower: 1. Installation of the laboratory and methods used (velocity measurement, aerodynamic balance, centres of pressure, pressure distribution on a plate surface, etc.). – 2. General results (square, rectangular and curved plates, parallel surfaces, cylindrical bodies, pressure distribution). – 3. Aeroplane wings (Esnault-Pelterie and Nieuport monoplanes; Wright, Maurice Farman and Bréguet biplanes). The volume is illustrated with 28 plates including diagrams, photographs, graphs, and technical schematics relating to these studies. A particularly interesting copy, annotated by a scientist named René Arnout, author of a paper published in 1910 in the Comptes rendus de l’Académie des sciences ("L’équilibre longitudinal et la courbure des surfaces portantes des aéroplanes"; see his handwritten note on p. 20 of the present volume).