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The New Council of the Royal Aeronautical Society

The New Council of the Royal Aeronautical Society 238 AIRCRAFT ENGINEERING June, 1939 Th e New Council of the Royal Aeronautical Society As a result of the election held in March the † Professor L. Bairstow, C.B.E., F.R.S., † Mr. F. Handley Page, C.B.E., F.R.Ae.S Council of the Royal Aeronautical Society F.R.Ac.S. (Zaharoff Professor of Aviation, (Managing Director, Handley Page, Ltd.). for the year 1939-1940 is constituted as London University). † Professor A. J. Sutton Pippard, M.B.E., follows : D.Sc , M.Inst.C.E., F.R.Ae.S. (Professor † Mr. S. Camm, F.R.Ae.S. (Director and Chief of Civil Engineering, City and Guilds President : Designer, Hawker Aircraft, Ltd.). College). *† Mr. A. H. R. Fedden, M.B.E., D.Sc., † Mr. W. C. Devereux, F.R.Ac.S. (Managing † Lord Sempill, A.F.C., F.R.Ae.S. (President, M.I.A.E., M.S.A.E., F.R.Ae.S. Director, High Duty Alloys, Ltd.). 1928-30). § Mr. D. L. Ellis, B.Sc , A.R.T.C., A.F.R.Ae.S. Past-President : § Major B. W. Shilson, O.B.E., M.I.Mech.E., (Head of Aerodynamics Dept., Vickers- Mr. H. E. Wimperis, C.B., C.B.E., M.A., M.I.Aut.E., F.R.Ac.S. (Assistant Director, Armstrong, Ltd.) M.I.E.E., F.R.Ac.S. Directorate of Production, Air Ministry). § Mr. F. M. Thomas, A.F.R.Ae.S. (Head of † Mr. A. Gouge, B.Sc., F.R.Ae.S. (Director, Vice-Presidents : Chief Designer and Manager, Short Brothers Airscrew Division, de Havilland Aircraft «t Mr. Griffith Brewer, Hon. F.R.Ac.S. (Rochester), Ltd.). Co., Ltd.). *§ Air Vice-Marshal R. M. Hill, M.C., A.F.C., § Dr. H. C. Watts, M.B.E., D.Sc., M.Inst.C.E., § Professor F. T. Hill, F.R.Ae.S., M.I.Ae.E. F.R.Ae.S. F.R.Ae.S. (Technical Director, The Airscrew (Assistant Professor (Aeronautics) Imperial Council: Co., Ltd.). College of Science and Technology). § Captain P. D. Acland (Managing Director, † Mr. C. C. Walker, A.M.Inst.C.E., F.R.Ac.S. § Lt.-Col. W. Lockwood Marsh, O.B.E., M.A., Westland Aircraft, Ltd.). (Director and Chief Engineer, de Havilland F.I.Ae.S., M.S.A.E., F.R.Ae.S. (Editor, Aircraft Co., Ltd.). * The President and Vice-Presidents are elected at the May or AIRCRAF T ENGINEERING). June meeting of the Council each year and take office on § Mr. R. T. Youngman, B.Sc., F.R.Ae.S. (Head October I in the same year. § Lt.-Col. J. T. C. Moore-Brabazon, M.C., of Technical Department, Fairey Aviation † Elected in March, 1938, to serve till March, 1940. F.R.Ae.S., M.P. (President, 1935-36). Co., Ltd.). § Elected in March, 1939, to serve till March, 1941. Tapered Beams To the Editor. applied (they arc certainly finite for the booms The point at issue can be verified by sub­ minus web) there is some reason to doubt the stitution of the stresses in DEA R SIR,—I have read with great interest validity of Mr. Atkin's solution. the article by E . H. Atkin on " Tapered Beams " 1 should therefore hesitate to accept the in AIRCRAFT ENGINEERING X, p. 347 and p. conclusions of Part III of Mr. Atkin's paper 371, and would like to offer the following com­ until the mathematical problem in question is ments on Part III (Taper Beams with Uniform and definitely solved. Thin Webs and Concentrated Booms of Yours faithfully, Constant Cross-Sectional Area) of this paper. ERI C REISSNER. Hence if the stresses given by the stress I t seems to me that at present there exists no Research Assistant in Aeronautics. function are applied at each end then the proof for the fact that the stress function Massachusetts Inst. of Technology, solution is rigorous. The Daniel Guggenheim I t is admitted that at the apex the solution Aeronautical Laboratory, ceases to mean anything; but this is true of Cambridge, Mass., U.S.A. other solutions t o other problems in which sharp corners and similar singularities occur and in April 18, 1939. particular applies to the accepted work on this which Mr. Atkin uses, leads to the correct 'To the Editor. subject. answer of the problem in question. Unless I DEA R SIR,—I have examined with interest The mathematical side of the problem does am mistaken each term in the above series leads th e points which Eric Reissner raises regarding call for some elaboration and it is hoped that to a resultant moment and resultant shear, Par t III of my paper on " Tapered Beams,"and this will be done. tending to infinity as one approaches the apex should like to make the following comments : I should like to thank Mr. Reissner for his of the beam. These terms will not cancel each As under the assumptions made (zero bending comments, and the Editor of AIRCRAFT other since the exponents of r arc different for rigidity of the booms) all boundary conditions ENGINEERING , for this opportunity to reply. each term. for the radial edges of the web are satisfied by Yours faithfully, Since in reality the stresses due to a con­ m y analysis, and no external actions are applied E . H. ATKIN. centrated force applied at the apex of the beam there, the actions at the chordal sections at the A. V. Roe & Co., Limited, ought to be—for finite area of the booms— two ends of an y length of tapered beam must be Newton Heath, in equilibrium. finite themselves at the point where the load is Manchester. May 11, 1939. The Modern Diesel. Fifth Edition, 254 pages, Mechanical World Year Book, 1939. 360 SOM E BOOKS RECENTLY RECEIVED illustrated. (Iliffc & Sons, Ltd. 3s. 6d.) pages and diary, illustrated. (Emmott & Co., Aeronautic Radio, By Myron F. Eddy. 502 Ltd. 1s. Gd.) pages, illustrated. (The Ronald Press, Co., By G. E. Mil ward. 124 pages. (Management Practica l Aircraft Stress Analysis, 2nd Edition. New York. 4.50 dols.) Library. 5s.) By D. R. Adams. 163 pages, illustrated. (Sir Aero Engines, Vol. II. By various authors. Aircraft Design, Vol. I, Aerodynamics. By Isaac Pitman & Sons, Ltd. 8s. 6d.) 381 pages, illustrated. (Charles Griffin & Co., C. H. Latimer Ncedham. 215 pages, illustrated. Ltd. 18s.) (Chapman & Hall, Ltd. 13s. 6d.) Timestud y for Coast Control. By Phil Carrol. Planned A.R.P. By Tccton. 138 pages, illus­ Example s and Charts for Aircraft Draughts­ 305 pages. (McGraw-Hill Publishing Co., Ltd. trated. (The Architectural Press. 5s.) men . By II. Parkinson. 56 pages, illustrated. 18s.) The Ground Engineer's Manual. By A. C. (Sir Isaac Pitman & Sons, Ltd. (is.) Kobinson. 128 pages, illustrated. (George The Art of Soaring Flight. By Wolf Hirth. Mecaniques des Fluides Appliquée, 2 Vols. Newnes, Ltd. 3s. (id.) 190 pages, illustrated. (English Edition dis­ By A. Tenot. 222 and 143 pages, illustrated. Guide to Business Management Books, 1939. tributed by " The Sailplane and Glider." 5s.) (Dunod, Paris. 64 and 50 fr.) http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Aircraft Engineering and Aerospace Technology Emerald Publishing

The New Council of the Royal Aeronautical Society

Aircraft Engineering and Aerospace Technology , Volume 11 (6): 1 – Jun 1, 1939
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Emerald Publishing
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Copyright © Emerald Group Publishing Limited
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0002-2667
DOI
10.1108/eb030499
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Abstract

238 AIRCRAFT ENGINEERING June, 1939 Th e New Council of the Royal Aeronautical Society As a result of the election held in March the † Professor L. Bairstow, C.B.E., F.R.S., † Mr. F. Handley Page, C.B.E., F.R.Ae.S Council of the Royal Aeronautical Society F.R.Ac.S. (Zaharoff Professor of Aviation, (Managing Director, Handley Page, Ltd.). for the year 1939-1940 is constituted as London University). † Professor A. J. Sutton Pippard, M.B.E., follows : D.Sc , M.Inst.C.E., F.R.Ae.S. (Professor † Mr. S. Camm, F.R.Ae.S. (Director and Chief of Civil Engineering, City and Guilds President : Designer, Hawker Aircraft, Ltd.). College). *† Mr. A. H. R. Fedden, M.B.E., D.Sc., † Mr. W. C. Devereux, F.R.Ac.S. (Managing † Lord Sempill, A.F.C., F.R.Ae.S. (President, M.I.A.E., M.S.A.E., F.R.Ae.S. Director, High Duty Alloys, Ltd.). 1928-30). § Mr. D. L. Ellis, B.Sc , A.R.T.C., A.F.R.Ae.S. Past-President : § Major B. W. Shilson, O.B.E., M.I.Mech.E., (Head of Aerodynamics Dept., Vickers- Mr. H. E. Wimperis, C.B., C.B.E., M.A., M.I.Aut.E., F.R.Ac.S. (Assistant Director, Armstrong, Ltd.) M.I.E.E., F.R.Ac.S. Directorate of Production, Air Ministry). § Mr. F. M. Thomas, A.F.R.Ae.S. (Head of † Mr. A. Gouge, B.Sc., F.R.Ae.S. (Director, Vice-Presidents : Chief Designer and Manager, Short Brothers Airscrew Division, de Havilland Aircraft «t Mr. Griffith Brewer, Hon. F.R.Ac.S. (Rochester), Ltd.). Co., Ltd.). *§ Air Vice-Marshal R. M. Hill, M.C., A.F.C., § Dr. H. C. Watts, M.B.E., D.Sc., M.Inst.C.E., § Professor F. T. Hill, F.R.Ae.S., M.I.Ae.E. F.R.Ae.S. F.R.Ae.S. (Technical Director, The Airscrew (Assistant Professor (Aeronautics) Imperial Council: Co., Ltd.). College of Science and Technology). § Captain P. D. Acland (Managing Director, † Mr. C. C. Walker, A.M.Inst.C.E., F.R.Ac.S. § Lt.-Col. W. Lockwood Marsh, O.B.E., M.A., Westland Aircraft, Ltd.). (Director and Chief Engineer, de Havilland F.I.Ae.S., M.S.A.E., F.R.Ae.S. (Editor, Aircraft Co., Ltd.). * The President and Vice-Presidents are elected at the May or AIRCRAF T ENGINEERING). June meeting of the Council each year and take office on § Mr. R. T. Youngman, B.Sc., F.R.Ae.S. (Head October I in the same year. § Lt.-Col. J. T. C. Moore-Brabazon, M.C., of Technical Department, Fairey Aviation † Elected in March, 1938, to serve till March, 1940. F.R.Ae.S., M.P. (President, 1935-36). Co., Ltd.). § Elected in March, 1939, to serve till March, 1941. Tapered Beams To the Editor. applied (they arc certainly finite for the booms The point at issue can be verified by sub­ minus web) there is some reason to doubt the stitution of the stresses in DEA R SIR,—I have read with great interest validity of Mr. Atkin's solution. the article by E . H. Atkin on " Tapered Beams " 1 should therefore hesitate to accept the in AIRCRAFT ENGINEERING X, p. 347 and p. conclusions of Part III of Mr. Atkin's paper 371, and would like to offer the following com­ until the mathematical problem in question is ments on Part III (Taper Beams with Uniform and definitely solved. Thin Webs and Concentrated Booms of Yours faithfully, Constant Cross-Sectional Area) of this paper. ERI C REISSNER. Hence if the stresses given by the stress I t seems to me that at present there exists no Research Assistant in Aeronautics. function are applied at each end then the proof for the fact that the stress function Massachusetts Inst. of Technology, solution is rigorous. The Daniel Guggenheim I t is admitted that at the apex the solution Aeronautical Laboratory, ceases to mean anything; but this is true of Cambridge, Mass., U.S.A. other solutions t o other problems in which sharp corners and similar singularities occur and in April 18, 1939. particular applies to the accepted work on this which Mr. Atkin uses, leads to the correct 'To the Editor. subject. answer of the problem in question. Unless I DEA R SIR,—I have examined with interest The mathematical side of the problem does am mistaken each term in the above series leads th e points which Eric Reissner raises regarding call for some elaboration and it is hoped that to a resultant moment and resultant shear, Par t III of my paper on " Tapered Beams,"and this will be done. tending to infinity as one approaches the apex should like to make the following comments : I should like to thank Mr. Reissner for his of the beam. These terms will not cancel each As under the assumptions made (zero bending comments, and the Editor of AIRCRAFT other since the exponents of r arc different for rigidity of the booms) all boundary conditions ENGINEERING , for this opportunity to reply. each term. for the radial edges of the web are satisfied by Yours faithfully, Since in reality the stresses due to a con­ m y analysis, and no external actions are applied E . H. ATKIN. centrated force applied at the apex of the beam there, the actions at the chordal sections at the A. V. Roe & Co., Limited, ought to be—for finite area of the booms— two ends of an y length of tapered beam must be Newton Heath, in equilibrium. finite themselves at the point where the load is Manchester. May 11, 1939. The Modern Diesel. Fifth Edition, 254 pages, Mechanical World Year Book, 1939. 360 SOM E BOOKS RECENTLY RECEIVED illustrated. (Iliffc & Sons, Ltd. 3s. 6d.) pages and diary, illustrated. (Emmott & Co., Aeronautic Radio, By Myron F. Eddy. 502 Ltd. 1s. Gd.) pages, illustrated. (The Ronald Press, Co., By G. E. Mil ward. 124 pages. (Management Practica l Aircraft Stress Analysis, 2nd Edition. New York. 4.50 dols.) Library. 5s.) By D. R. Adams. 163 pages, illustrated. (Sir Aero Engines, Vol. II. By various authors. Aircraft Design, Vol. I, Aerodynamics. By Isaac Pitman & Sons, Ltd. 8s. 6d.) 381 pages, illustrated. (Charles Griffin & Co., C. H. Latimer Ncedham. 215 pages, illustrated. Ltd. 18s.) (Chapman & Hall, Ltd. 13s. 6d.) Timestud y for Coast Control. By Phil Carrol. Planned A.R.P. By Tccton. 138 pages, illus­ Example s and Charts for Aircraft Draughts­ 305 pages. (McGraw-Hill Publishing Co., Ltd. trated. (The Architectural Press. 5s.) men . By II. Parkinson. 56 pages, illustrated. 18s.) The Ground Engineer's Manual. By A. C. (Sir Isaac Pitman & Sons, Ltd. (is.) Kobinson. 128 pages, illustrated. (George The Art of Soaring Flight. By Wolf Hirth. Mecaniques des Fluides Appliquée, 2 Vols. Newnes, Ltd. 3s. (id.) 190 pages, illustrated. (English Edition dis­ By A. Tenot. 222 and 143 pages, illustrated. Guide to Business Management Books, 1939. tributed by " The Sailplane and Glider." 5s.) (Dunod, Paris. 64 and 50 fr.)

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Aircraft Engineering and Aerospace Technology – Emerald Publishing

Published: Jun 1, 1939

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