The First Man-Carrying Aeroplane Capable of Sustained Free Flight: Langley's Success as a Pioneer in Aviation / From the Smithsonian Report for 1914, pages 217-222, Publication 2329, 1915

by Albert Francis Zahm

Langley Aeroplane in Flight September 19, 1914; Climbing.

Smithsonian Report, 1914.—Zahm.

Plate 7.

Langley Aeroplane in Flight October 1, 1914; Natural Poise.

Smithsonian Report, 1914.—Zahm.

Plate 8.