Chapter
I. Evolution of the Two-Surface Flying Machine
Introductory Chapter by Octave Chanute, C. E. II. Theory Development and Use Origin of the Aeroplane--Developments by Chanute and the Wrights--Practical Uses and Limits. III. Mechanical Bird Action What the Motor Does--Puzzle in Bird Soaring. IV. Various Forms of Flying Machines Helicopters, Ornithopters and Aeroplan...