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, 1915by Zahm, Albert FrancisRead nowAdd to libraryLanguage: en · 321 downloads on Project GutenbergAirplanesLangley, S. P. (Samuel Pierpont), 1834-1906TLIn: Category: Biographies · Category: History - Modern (1750+) · Category: Engineering & TechnologyPublic-domain ebook sourced from Project Gutenberg #44466.