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Frederick Lanchester collection... Aeronautical, 1907 - 1940


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  • Frederick Lanchester collection
  • Correspondence and other documents ('Baxter' series)
  • Aeronautical, 1907 - 1940

  • LAN/1/2
  • SubSeries
  • 1907 - 1940
  • ┆Letters on specific topics include: LAN/1/2/1 “Aerial Flight”;  LAN/1/2/2 – 2/6 Air Ministry award (query concerning acknowledgement to the Air Ministry of award of £250, for use of Frederick Lanchester’s inventions, turn indicators and true plumb indicators (see 1/12/18);  LAN/1/2/7 – 2/12 Airscrews;   LAN/1/2/13 – 2/14 Airships;  LAN/1/2/15 circulation theory of sustentation in flight;  LAN/1/2/16 – 2/24 Exhaust efflux propulsion (articles by Frederick Lanchester and correspondence extracted from “Flight” considering the possibility of using the exhaust pressure of an aero engine as an auxiliary means of propulsion - deals with two problems “When the exhaust release pressure is utilised to the full without involving back-pressure during the return or evacuation stroke' and when the offlux energy is wholly or in part due to the piston (or pistons) during the return stroke, and in which there is consequent back-pressure”. Frederick Lanchester mentions early experiments by James Atkinson and Dugald Clerk. In the course of the articles he considers certain principles of rocket flight and discusses the question “whether and to what extent it will pay to use a portion of the power developed by the engine to promote exhaust efflux as an auxiliary means of propulsion, at the expense of just that much power lost to the propeller-shaft”;  LAN/1/2/25 – 2/27 High Altitude (Lanchester published an article “At high altitude” in two parts in the Journal of the Royal Aeronautical Society, Vol. 41, 1937 Part I and Appendix, pp. 338 – 400. Part II, pp. 437 – 466);  LAN/1/2/28 – 2/31 Profile drag (Professor B. Melvill Jones gave a paper “Profile Drag” to the Royal Aeronautical Society on 17 December 1936 This is printed in the Society’s Journal, Vol. 41, 1937, pp. 339 – 368);  LAN/2/32 – 2/69 skin friction (documents relating to paper “The Part played by Skin-friction in Aeronautics”, read before the Royal Aeronautical Society by F.W. Lanchester, and on 12 November 1936. The paper was printed in the Journal of the Society, Vol. 41, 1937, pp. 68 – 113. pp. 113 – 131 contains discussion and Lanchester’s reply. There is a supplementary memorandum published in the same volume at pp. 322 – 323. Including LAN/1/2/42-2/55 – notice of the paper ‘Skin friction’ in “Nature”); LAN/1/2/56-2/59 Documents concerning notice of paper (“Skin friction”) in “Engineering”, notice of above in “Engineering”; LAN/1/2/60-2/63 Frederick Lanchester’s own summary of ‘skin friction’ for “The Engineer” (documents concerning Frederick Lanchester’s own summary of paper “Skin friction” for “The Engineer”); LAN/1/2/64-2-69 Documents relating to additional note on skin-friction published in the Journal of the Royal Aeronautical Society, Vol. 41, 1937, pp. 322 – 323. additional note on skin friction published in the Journal of the Royal Aeronautical Society, vol. 41, 1937 (pp 322-323);  LAN/1/2/70 – 2/118 Correspondence with N.A. Thompson and D.White;  LAN/1/2/119 – 2/123 Correspondence with or concerning the Wright Brothers;  LAN/1/2/124 – 2/128 Patents. This correspondence concerns the history of the Norman Thompson Flight Company, the early history of flying boats, the breaking by the Curtiss Company of a concessionary agreement made with the Thompson Company, and the part played in this by Commander Porte. Also mentioned is the question of who may claim most credit for the design of flying-boats in the war years (1914 – 1918), Norman Thompson, Commander Porte, or the Curtiss Company. The award by the Royal Commission on Awards to Inventors, 1923, (LAN/1/2/72 gives the credit to Thompson). The gist of these documents and more besides is given in the Twenty-Fourth Thomas Hawksley Lecture, “The Gas Engine and after”, by Frederick Lanchester, which is printed in the Proceedings of the Institution of Mechanical Engineers, Vol. 36, 1937, pp. 195 – 244. In particular pp. 219, 220, 234 – 6 are relevant; and on pp. 240 and 241 there is printed a letter from N. Thompson to Lanchester. This is the communication referred to in document LAN/1/2/105. Additional matter concerned with aeronautics will be found in LAN/1/1.

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  • Frederick Lanchester collection
  • Correspondence and other documents ('Baxter' series)
  • Aeronautical, 1907 - 1940

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  • Aeronautical, 1907 - 1940

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Typed “Précis of matter wanted to make up new issue of Aerial Flight” Typewritten letter from F.J. Cleveland, Patent Agency to Frederick Lanchester Copy typewritten letter from Frederick Lanchester to F.J. Cleveland Typewritten letter from F.J. Cleveland to Frederick Lanchester Typewritten letter from H.E. Wimperis, Air Ministry, to Frederick Lanchester Typewritten letter from F.J. Cleveland to Frederick Lanchester Typewritten letter from Major F.M. Green, Siddeley-Deasy Motor Car Co. to Frederick Lanchester Copy typewritten letter from Frederick Lanchester to F.M. Green Letter from A. Fage, Aerodynamics Dept., National Physical Laboratory to Frederick Lanchester Typed notes on “Lanchester’s Vortex Theory of an Airscrew” Diagrams of vortex theory Letter from A. Fage to Frederick Lanchester Letter from Captain F.L.M. Boothby to Frederick Lanchester Copy typewritten letter from Frederick Lanchester to F.L.M. Boothby Typewritten letter from Frederick Lanchester to Professor A.V. Hill, Secretary of the Royal Society Typed “Confidential report on the Theory of Auxiliary Propulsion by Exhaust Efflux” by F.W. Lanchester. Frederick Lanchester article on 'Exhaust Efflux Propulsion' from “Flight" Continuation of Frederick Lanchester article on 'Exhaust Efflux Propulsion' from “Flight" Continuation of Frederick Lanchester article on 'Exhaust Efflux Propulsion' from “Flight" Correspondence on article 'Rocket Efficiency' from “Flight” Correspondence from “Flight” Correspondence from “Flight” Correspondence from “Flight” Typewritten letter from J.A. Jackson to Frederick Lanchester Typewritten letter from C.C. Walker, De Havilland Aircraft Co. to Frederick Lanchester Copy typewritten letter from Frederick Lanchester to C.C. Walker, De Havilland Aircraft Co Copy typewritten letter from Frederick Lanchester to C.C. Walker Typed notes on “Written communication by F.W. Lanchester … relating to paper on “Profile Drag …” Copy typewritten letter from Frederick Lanchester to Capt. L. Pritchard, Secretary, Royal Aeronautical Society Additional matter to written communication Working notes for LAN/1/2/30 Unrevised proof of paper “The Part played by Skin-friction in Aeronautics” Appendix V of LAN/1/2/32 Note “to be ‘taken in’ to paper” (LAN/1/2/32) - d Derivation of Rd oc 1/v2. “List of slides required” for paper (LAN/1/2/32) “Abstract” of paper (LAN/1/2/32) “Abridgement” of paper (LAN/1/2/32) List “New wall diagrams prepared for paper of November 12th” (LAN/1/2/32) List - Wall diagrams for paper (LAN/1/2/32) Printed cuttings - figures for paper (LAN/1/2/32) Typed “Extract from communication by Mr. C.C. Walker to the discussion” on paper (i.e. LAN/1/2/32) Typewritten letter from Sir Richard Gregory, Editor of “Nature” to Frederick Lanchester Proof digest of paper (“Part played by skin friction in aeronautics”) Typewritten letter from Frederick Lanchester to Sir Richard Gregory Typewritten letter from Sir Richard Gregory to Frederick Lanchester Draft [?] of letter from Frederick Lanchester to Sir Richard Gregory Copy typewritten letter from Frederick Lanchester to Sir Richard Gregory Typewritten letter from Sir Richard Gregory to Frederick Lanchester Copy typewritten letter from Frederick Lanchester to Sir Richard Gregory Typed “Synopsis of paper … skin friction …” for Sir Richard Gregory, 'Nature' Copy typewritten letter from Frederick Lanchester to Sir Richard Gregory Typewritten letter from Sir Richard Gregory to Frederick Lanchester Copy typewritten letter from Frederick Lanchester to Sir Richard Gregory Proof of synopsis of paper (“Part played by skin friction in aeronautics”) Copy typewritten letter from Frederick Lanchester to The Editor, “Nature” Typewritten letter from Major P.J. Cowan, Editor of “Engineering” to Frederick Lanchester Proof of review of Frederick Lanchester’s paper on skin friction in “Engineering" Copy typewritten letter from Frederick Lanchester to Major P.J. Cowan Typed “Note re proof of review submitted for reading by “Engineering” Draft of article for “The Engineer” Copy typewritten text of article for “The Engineer” Copy typewritten letter from Frederick Lanchester to Dr. T.W. Chalmers, Editor “The Engineer” Drawings of figures and caption for Frederick Lanchester’s article (LAN/1/2/61) Working papers and notes for additional note on skin friction Copy typewritten letter from Frederick Lanchester to Capt. L. Pritchard, Secretary, Royal Aeronautical Society Typewritten text of additional note on skin friction Introductory note to additional note on skin friction Corrected proof of additional note on skin friction Second copy of corrected proof of additional note on skin friction Typewritten letter from G.C. King, Norman Thompson Flight Company, Ltd. to G. Simms, R.N. Air Station, Killingsholme Written copy letter from Frederick Lanchester to N.A. Thompson Press cutting concerning the award of £2,250 by the Royal Commission on Awards to Inventors to the Norman Thompson Flight Company “in recognition of the utility during the war of Mr. Thompson’s inventions in flying-boats” Copy of postcard from Frederick Lanchester to Norman Thompson, 14 Queens Road, Richmond Letter from Rupert Thompson to Frederick Lanchester Copy of typewritten letter from Frederick Lanchester to Rupert Thompson Copy of typewritten letter from Frederick Lanchester to N.A. Thompson Letter from N.A. Thompson to Frederick Lanchester Copy typewritten letter from Frederick Lanchester to N.A. Thompson Copy typewritten letter from Frederick Lanchester to N.A. Thompson Handwritten letter from N.A. Thompson to Frederick Lanchester Copy of typewritten letter of LAN/1/2/80 Copy typewritten letter from Frederick Lanchester to N.A. Thompson Letter from N.A. Thompson to Frederick Lanchester Copy typewritten letter from Frederick Lanchester to N.A. Thompson Letter from N.A. Thompson to Frederick Lanchester Typewritten letter from N.A. Thompson to Frederick Lanchester Copy typewritten letter from Frederick Lanchester to N.A. Thompson Typewritten letter from N.A. Thompson to Frederick Lanchester Copy typewritten letter from Frederick Lanchester to N.A. Thompson Letter from N.A. Thompson to Frederick Lanchester Copy typewritten letter from Frederick Lanchester to N.A. Thompson Typewritten letter from N.A. Thompson to Frederick Lanchester Typewritten letter from N.A. Th0ompson to Frederick Lanchester Copy typewritten letter from Frederick Lanchester to N.A. Thompson Typewritten letter from N.A. Thompson to Frederick Lanchester Letter from N.A. Thompson to Frederick Lanchester Copy typewritten letter from Frederick Lanchester to N.A. Thompson Typewritten letter from N.A. Thompson to Frederick Lanchester Card from N.A. Thompson to Frederick Lanchester Copy typewritten letter from Frederick Lanchester to N.A. Thompson Handwritten letter from Douglas White to Frederick Lanchester Copy typewritten letter of LAN1/2/101 Copy typewritten letter from Frederick Lanchester to N.A. Thompson Letter from N.A. Thompson to Frederick Lanchester Copy typewritten letter from Frederick Lanchester to N.A. Thompson Copy typewritten letter from Frederick Lanchester to N.A. Thompson Copy typewritten letter from Frederick Lanchester to N.A. Thompson Letter from N.A. Thompson to Frederick Lanchester Copy typewritten letter from Frederick Lanchester to N.A. Thompson Letter from N.A. Thompson to Frederick Lanchester Copy typewritten letter from Frederick Lanchester to N.A. Thompson Letter from N.A. Thompson to Frederick Lanchester Typewritten letter from N.A. Thompson to Frederick Lanchester Copy typewritten letter from Frederick Lanchester to N.A. Thompson Typewritten letter from N.A. Thompson to Frederick Lanchester Copy typewritten letter from Frederick Lanchester to N.A. Thompson Typewritten letter from N.A. Thompson to Frederick Lanchester Copy typewritten letter from Frederick Lanchester to N.A. Thompson Letter from Wilbur Wright to Frederick Lanchester Photographic copy of LAN/1/2/119 Typed copy of LAN/1/2/119 Letter from P.J. Cowan, Editor “Engineering” to Frederick Lanchester Typewritten letter from Orville Wright to Frederick Lanchester Patent Specification 9413 A (1907) on Improvements in Driving Mechanism for Aeronautical or Marine Propellers (second edition) Photographic negative copy of LAN/1/2/124 Patent Specification 129,727 (1917) on An Improved Lateral Plumb Indicator for Aircraft Patent Specification, 130,025 (1917) on Improvements in the Attachments of Aeronautical Propellers and in Bosses therefore E.A. Sperry Patent Specification 152,008 (1918) on Gyroscopic Indicator Apparatus for Aircraft (second edition)