Langley Memoir on Mechanical Flight, Parts I and II: Smithsonian Contributions to Knowledge, Volume 27 Number 3, Publication 1948, 1911

· 1906

VIII. History of construction of sustaining and guiding surfaces of aerodromes 4, 5, and 6 … 80 IX. History of launching apparatus and field trials of aerodromes 4, 5, and 6 … 92…

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