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

By Charles M. (Charles Matthews) Manly, S. P. (Samuel Pierpont) Langley
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Table of Contents
  • E-text prepared by Charlene Taylor, RichardW, and the Online Distributed Proofreading Team (http://www.pgdp.net) from page images generously made available by Internet Archive/American Libraries (https://archive.org/details/americana)
  • Langley Memoir on Mechanical Flight
    • Advertisement
    • Preface
    • Contents
    • List of Plates
    • References
    • Part I. 1887 to 1896, by S.P. Langley.
      • Chapter I. Introductory.
      • Chapter II. Preliminary.
        • EXPERIMENTS WITH SMALL MODELS
        • Abbreviations
        • Example
        • EXPERIMENTS WITH AERODROMES NOS. 30 AND 31.
        • OBSERVATION OF NOVEMBER 20, 1891.
      • EXPERIMENTS WITH SMALL MODELS
      • Abbreviations
      • Example
      • EXPERIMENTS WITH AERODROMES NOS. 30 AND 31.
      • OBSERVATION OF NOVEMBER 20, 1891.
      • Chapter III. Available Motors.
        • INDIA RUBBER
        • STEAM ENGINE
        • GUNPOWDER
        • HOT-WATER ENGINE
        • COMPRESSED AIR
        • GAS
        • ELECTRICITY
        • CARBONIC-ACID GAS
      • INDIA RUBBER
      • STEAM ENGINE
      • GUNPOWDER
      • HOT-WATER ENGINE
      • COMPRESSED AIR
      • GAS
      • ELECTRICITY
      • CARBONIC-ACID GAS
      • Chapter IV. Early Steam Motors and Other Models.
      • Chapter V. On Sustaining Surfaces.
        • EXPERIMENTS IN THE OPEN WIND
        • RELATION OF AREA TO WEIGHT AND POWER
      • EXPERIMENTS IN THE OPEN WIND
      • RELATION OF AREA TO WEIGHT AND POWER
      • Chapter VI Balancing the Aerodrome
        • LATERAL STABILITY
        • LONGITUDINAL STABILITY
        • CONDITION OF AERODROME NO. 6, NOVEMBER 28, 1896
      • LATERAL STABILITY
      • LONGITUDINAL STABILITY
      • CONDITION OF AERODROME NO. 6, NOVEMBER 28, 1896
      • Chapter VII History of Construction of Frame and Engines of Aerodromes
        • 1893
        • 1894
        • 1895
        • 1896
      • 1893
      • 1894
      • 1895
      • 1896
      • Chapter VIII History of Construction of Sustaining and Guiding Surfaces of Aerodromes 4, 5 and 6
        • INTRODUCTION
        • 1893
        • 1894
        • 1895
        • 1896
      • INTRODUCTION
      • 1893
      • 1894
      • 1895
      • 1896
      • Chapter IX. History of Launching Apparatus and Field-trials of Aerodromes 4, 5 and 6.
        • LAUNCHING APPARATUS
        • 1892
        • 1893
        • FIELD TRIALS29
        • 1894
        • 1895
        • 1896
      • LAUNCHING APPARATUS
      • 1892
      • 1893
      • FIELD TRIALS29
      • 1894
      • 1895
      • 1896
      • Chapter X. Description of the Launching Apparatus and of Aerodromes Nos. 5 and 6.
        • DESCRIPTION OF AERODROME NO. 5
        • DESCRIPTION OF AERODROME NO. 6
      • DESCRIPTION OF AERODROME NO. 5
      • DESCRIPTION OF AERODROME NO. 6
      • FOOTNOTES.
    • Chapter I. Introductory.
    • Chapter II. Preliminary.
      • EXPERIMENTS WITH SMALL MODELS
      • Abbreviations
      • Example
      • EXPERIMENTS WITH AERODROMES NOS. 30 AND 31.
      • OBSERVATION OF NOVEMBER 20, 1891.
    • EXPERIMENTS WITH SMALL MODELS
    • Abbreviations
    • Example
    • EXPERIMENTS WITH AERODROMES NOS. 30 AND 31.
    • OBSERVATION OF NOVEMBER 20, 1891.
    • Chapter III. Available Motors.
      • INDIA RUBBER
      • STEAM ENGINE
      • GUNPOWDER
      • HOT-WATER ENGINE
      • COMPRESSED AIR
      • GAS
      • ELECTRICITY
      • CARBONIC-ACID GAS
    • INDIA RUBBER
    • STEAM ENGINE
    • GUNPOWDER
    • HOT-WATER ENGINE
    • COMPRESSED AIR
    • GAS
    • ELECTRICITY
    • CARBONIC-ACID GAS
    • Chapter IV. Early Steam Motors and Other Models.
    • Chapter V. On Sustaining Surfaces.
      • EXPERIMENTS IN THE OPEN WIND
      • RELATION OF AREA TO WEIGHT AND POWER
    • EXPERIMENTS IN THE OPEN WIND
    • RELATION OF AREA TO WEIGHT AND POWER
    • Chapter VI Balancing the Aerodrome
      • LATERAL STABILITY
      • LONGITUDINAL STABILITY
      • CONDITION OF AERODROME NO. 6, NOVEMBER 28, 1896
    • LATERAL STABILITY
    • LONGITUDINAL STABILITY
    • CONDITION OF AERODROME NO. 6, NOVEMBER 28, 1896
    • Chapter VII History of Construction of Frame and Engines of Aerodromes
      • 1893
      • 1894
      • 1895
      • 1896
    • 1893
    • 1894
    • 1895
    • 1896
    • Chapter VIII History of Construction of Sustaining and Guiding Surfaces of Aerodromes 4, 5 and 6
      • INTRODUCTION
      • 1893
      • 1894
      • 1895
      • 1896
    • INTRODUCTION
    • 1893
    • 1894
    • 1895
    • 1896
    • Chapter IX. History of Launching Apparatus and Field-trials of Aerodromes 4, 5 and 6.
      • LAUNCHING APPARATUS
      • 1892
      • 1893
      • FIELD TRIALS29
      • 1894
      • 1895
      • 1896
    • LAUNCHING APPARATUS
    • 1892
    • 1893
    • FIELD TRIALS29
    • 1894
    • 1895
    • 1896
    • Chapter X. Description of the Launching Apparatus and of Aerodromes Nos. 5 and 6.
      • DESCRIPTION OF AERODROME NO. 5
      • DESCRIPTION OF AERODROME NO. 6
    • DESCRIPTION OF AERODROME NO. 5
    • DESCRIPTION OF AERODROME NO. 6
    • FOOTNOTES.
    • PART II. 1897 to 1903, by Charles M. Manley.
      • Chapter I. Introductory.
      • Chapter II. General Considerations.
      • Chapter III. Experiments With Models.
        • CONDENSED RECORD OF FLIGHTS OF AERODROMES NOS. 5 AND 6 FROM JUNE 7 TO AUGUST 3, 1899
      • CONDENSED RECORD OF FLIGHTS OF AERODROMES NOS. 5 AND 6 FROM JUNE 7 TO AUGUST 3, 1899
      • Chapter IV. House-boat and Launching Apparatus.
      • Chapter V. Construction of Frame of Large Aerodrome.
        • TRANSVERSE FRAME
        • PROPELLERS
        • AVIATOR’S CAR
      • TRANSVERSE FRAME
      • PROPELLERS
      • AVIATOR’S CAR
      • Chapter VI. Construction of Supporting Surfaces.
      • Chapter VII. Equilibrium and Control.
      • Chapter VIII. The Experimental Engine.
      • Chapter IX. The Quarter-size Model Aerodrome.
      • Chapter X. Construction and Tests of the Large Engine.
      • Chapter XI. Shop Tests of the Aerodrome.
      • Chapter XII. Field-trials in 1903.
        • PRESENT STATUS OF THE WORK
        • BLÉRIOT MACHINE OF 1907 ON LANGLEY TYPE
      • PRESENT STATUS OF THE WORK
      • BLÉRIOT MACHINE OF 1907 ON LANGLEY TYPE
      • Appendix. Study of the American Buzzard and the “John Crow”.
        • SECRETARY LANGLEY’S INSTRUCTIONS TO ASSISTANTS
      • SECRETARY LANGLEY’S INSTRUCTIONS TO ASSISTANTS
      • FOOTNOTES.
      • Data Sheets
        • DATA SHEET No. 1. Weight of Aerodrome No. 5, as photographed on May 11, 1896. Certified to by R. L. Reed, May 6, 1896.
        • DATA SHEET No. 2. Weight of Aerodrome No. 6. Certified to by R. L. Reed, November 27 and 28, 1896.
        • DATA SHEET No. 3.Weight of Aerodrome No. 6, Flat Wings and Pénaud Rudder. Certified to by Chas. M. Manly, June 7, 1899.
        • DATA SHEET No. 4.Weight of Aerodrome No. 6, Superposed Wings and Pénaud Rudder. Certified to by Chas. M. Manly, June 13, 1899.
        • DATA SHEET No. 5.Weight of Aerodrome No. 6, Flat Wings and Pénaud Rudder. Certified to by Chas. M. Manly, June 22, 1899.
        • DATA SHEET No. 6.Weight of Aerodrome No. 5, Flat Wings and Pénaud Rudder. Certified to by Chas. M. Manly, June 23, 1899.
        • DATA SHEET No. 7.Weight of Aerodrome No. 5, Flat Wings and Pénaud Rudder. Certified to by Chas. M. Manly, July 12, 1899.
        • DATA SHEET No. 8.Weight of Aerodrome No. 5, Flat Wings and Pénaud Rudder. Certified to by Chas. M. Manly, July 19, 1899.
        • DATA SHEET No. 9.Weight of Aerodrome No. 6, Flat Wings and Pénaud Rudder. Certified to by Chas. M. Manly, July 27, 1899.
        • DATA SHEET No. 10.Weight of Aerodrome No. 5, Flat Wings and Pénaud Rudder. Certified to by Chas. M. Manly, July 27, 1899.
        • DATA SHEET No. 11.Weight of Aerodrome No. 5, Superposed Wings and Pénaud Rudder. Certified to by Chas. M. Manly, August 3, 1899.
        • DATA SHEET No. 12.Weight of Aerodrome, One-Quarter Model. Certified to by Chas. M. Manly, June 11, 1901.
      • DATA SHEET No. 1. Weight of Aerodrome No. 5, as photographed on May 11, 1896. Certified to by R. L. Reed, May 6, 1896.
      • DATA SHEET No. 2. Weight of Aerodrome No. 6. Certified to by R. L. Reed, November 27 and 28, 1896.
      • DATA SHEET No. 3.Weight of Aerodrome No. 6, Flat Wings and Pénaud Rudder. Certified to by Chas. M. Manly, June 7, 1899.
      • DATA SHEET No. 4.Weight of Aerodrome No. 6, Superposed Wings and Pénaud Rudder. Certified to by Chas. M. Manly, June 13, 1899.
      • DATA SHEET No. 5.Weight of Aerodrome No. 6, Flat Wings and Pénaud Rudder. Certified to by Chas. M. Manly, June 22, 1899.
      • DATA SHEET No. 6.Weight of Aerodrome No. 5, Flat Wings and Pénaud Rudder. Certified to by Chas. M. Manly, June 23, 1899.
      • DATA SHEET No. 7.Weight of Aerodrome No. 5, Flat Wings and Pénaud Rudder. Certified to by Chas. M. Manly, July 12, 1899.
      • DATA SHEET No. 8.Weight of Aerodrome No. 5, Flat Wings and Pénaud Rudder. Certified to by Chas. M. Manly, July 19, 1899.
      • DATA SHEET No. 9.Weight of Aerodrome No. 6, Flat Wings and Pénaud Rudder. Certified to by Chas. M. Manly, July 27, 1899.
      • DATA SHEET No. 10.Weight of Aerodrome No. 5, Flat Wings and Pénaud Rudder. Certified to by Chas. M. Manly, July 27, 1899.
      • DATA SHEET No. 11.Weight of Aerodrome No. 5, Superposed Wings and Pénaud Rudder. Certified to by Chas. M. Manly, August 3, 1899.
      • DATA SHEET No. 12.Weight of Aerodrome, One-Quarter Model. Certified to by Chas. M. Manly, June 11, 1901.
    • Chapter I. Introductory.
    • Chapter II. General Considerations.
    • Chapter III. Experiments With Models.
      • CONDENSED RECORD OF FLIGHTS OF AERODROMES NOS. 5 AND 6 FROM JUNE 7 TO AUGUST 3, 1899
    • CONDENSED RECORD OF FLIGHTS OF AERODROMES NOS. 5 AND 6 FROM JUNE 7 TO AUGUST 3, 1899
    • Chapter IV. House-boat and Launching Apparatus.
    • Chapter V. Construction of Frame of Large Aerodrome.
      • TRANSVERSE FRAME
      • PROPELLERS
      • AVIATOR’S CAR
    • TRANSVERSE FRAME
    • PROPELLERS
    • AVIATOR’S CAR
    • Chapter VI. Construction of Supporting Surfaces.
    • Chapter VII. Equilibrium and Control.
    • Chapter VIII. The Experimental Engine.
    • Chapter IX. The Quarter-size Model Aerodrome.
    • Chapter X. Construction and Tests of the Large Engine.
    • Chapter XI. Shop Tests of the Aerodrome.
    • Chapter XII. Field-trials in 1903.
      • PRESENT STATUS OF THE WORK
      • BLÉRIOT MACHINE OF 1907 ON LANGLEY TYPE
    • PRESENT STATUS OF THE WORK
    • BLÉRIOT MACHINE OF 1907 ON LANGLEY TYPE
    • Appendix. Study of the American Buzzard and the “John Crow”.
      • SECRETARY LANGLEY’S INSTRUCTIONS TO ASSISTANTS
    • SECRETARY LANGLEY’S INSTRUCTIONS TO ASSISTANTS
    • FOOTNOTES.
    • Data Sheets
      • DATA SHEET No. 1. Weight of Aerodrome No. 5, as photographed on May 11, 1896. Certified to by R. L. Reed, May 6, 1896.
      • DATA SHEET No. 2. Weight of Aerodrome No. 6. Certified to by R. L. Reed, November 27 and 28, 1896.
      • DATA SHEET No. 3.Weight of Aerodrome No. 6, Flat Wings and Pénaud Rudder. Certified to by Chas. M. Manly, June 7, 1899.
      • DATA SHEET No. 4.Weight of Aerodrome No. 6, Superposed Wings and Pénaud Rudder. Certified to by Chas. M. Manly, June 13, 1899.
      • DATA SHEET No. 5.Weight of Aerodrome No. 6, Flat Wings and Pénaud Rudder. Certified to by Chas. M. Manly, June 22, 1899.
      • DATA SHEET No. 6.Weight of Aerodrome No. 5, Flat Wings and Pénaud Rudder. Certified to by Chas. M. Manly, June 23, 1899.
      • DATA SHEET No. 7.Weight of Aerodrome No. 5, Flat Wings and Pénaud Rudder. Certified to by Chas. M. Manly, July 12, 1899.
      • DATA SHEET No. 8.Weight of Aerodrome No. 5, Flat Wings and Pénaud Rudder. Certified to by Chas. M. Manly, July 19, 1899.
      • DATA SHEET No. 9.Weight of Aerodrome No. 6, Flat Wings and Pénaud Rudder. Certified to by Chas. M. Manly, July 27, 1899.
      • DATA SHEET No. 10.Weight of Aerodrome No. 5, Flat Wings and Pénaud Rudder. Certified to by Chas. M. Manly, July 27, 1899.
      • DATA SHEET No. 11.Weight of Aerodrome No. 5, Superposed Wings and Pénaud Rudder. Certified to by Chas. M. Manly, August 3, 1899.
      • DATA SHEET No. 12.Weight of Aerodrome, One-Quarter Model. Certified to by Chas. M. Manly, June 11, 1901.
    • DATA SHEET No. 1. Weight of Aerodrome No. 5, as photographed on May 11, 1896. Certified to by R. L. Reed, May 6, 1896.
    • DATA SHEET No. 2. Weight of Aerodrome No. 6. Certified to by R. L. Reed, November 27 and 28, 1896.
    • DATA SHEET No. 3.Weight of Aerodrome No. 6, Flat Wings and Pénaud Rudder. Certified to by Chas. M. Manly, June 7, 1899.
    • DATA SHEET No. 4.Weight of Aerodrome No. 6, Superposed Wings and Pénaud Rudder. Certified to by Chas. M. Manly, June 13, 1899.
    • DATA SHEET No. 5.Weight of Aerodrome No. 6, Flat Wings and Pénaud Rudder. Certified to by Chas. M. Manly, June 22, 1899.
    • DATA SHEET No. 6.Weight of Aerodrome No. 5, Flat Wings and Pénaud Rudder. Certified to by Chas. M. Manly, June 23, 1899.
    • DATA SHEET No. 7.Weight of Aerodrome No. 5, Flat Wings and Pénaud Rudder. Certified to by Chas. M. Manly, July 12, 1899.
    • DATA SHEET No. 8.Weight of Aerodrome No. 5, Flat Wings and Pénaud Rudder. Certified to by Chas. M. Manly, July 19, 1899.
    • DATA SHEET No. 9.Weight of Aerodrome No. 6, Flat Wings and Pénaud Rudder. Certified to by Chas. M. Manly, July 27, 1899.
    • DATA SHEET No. 10.Weight of Aerodrome No. 5, Flat Wings and Pénaud Rudder. Certified to by Chas. M. Manly, July 27, 1899.
    • DATA SHEET No. 11.Weight of Aerodrome No. 5, Superposed Wings and Pénaud Rudder. Certified to by Chas. M. Manly, August 3, 1899.
    • DATA SHEET No. 12.Weight of Aerodrome, One-Quarter Model. Certified to by Chas. M. Manly, June 11, 1901.
    • Index
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