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March, 1936 AIRCRAFT ENGINEERING 83 Th e Fifth Volume of "Aerodynamic Theory"— Th e British Official History Melvill Jones writes with authority, and he has Aerodynami c Theory. Edited by W. F. organisation at home, where the work of th e rare gift of presenting clearly the essence Durand. Vol. 5. (Julius Springer, Berlin. Major Smith-Barry in introducing the "Gosport of a difficult subject. 20 marks.) System " receives recognition. Various methods of predicting the perform This volume is the fifth of a series on the ance of an aeroplane, or of estimating the con Th e Encyclopedia of Aviation : Compiled general subject of Aerodynamic Theory, pre sequences of specified changes in design, are and Edited by Squadron-Leader C. G. Burge. pared under a grant from the Guggenheim Fund described by Mr. Kerber in Division O. At the (Pitman. 15s.) for the Promotion of Aeronautics. The earlier outset, the subject is treated in a general This is an ambitious work which, let us say volumes were reviewed in AIRCRAFT ENGINEER manner. Particular methods of predicting a t once, admirably fulfils its purpose. It covers, ING, September, 1934, p. 249; April, 1935, performance are then fully described and under appropriate headings arranged alpha p . 99 ; September, 1935, p . 233 ; and December, illustrative examples given. betically, short articles on every conceivable 1935, p. 308. The division closes with chapters on Range aspect of aeronautics: technical, historical Volume 5 is divided into two divisions: and Endurance, Influence of Principal Factors and practical. The editor is to be congratulated Division N, "Dynamics of the Aeroplane," by on th e way in which he has managed to describe on Performance, and on Limits of Performance. B . Melvill Jones, Professor of Aeronautical complicated things in simple terms without A. F. Engineering in the University of Cambridge, violation of the rules of scientific nomenclature. Member of the Aeronautical Research Com I t is a pity that he should have marred his Practica l Performance Prediction of mittee ; and Division O, "Aeroplane Per introduction by a quotation from the works of Aircraft . By Lt.-Col. J. D. Blyth. (Sir formance," by L. V. Kerber, former Chief, Roger Bacon which has long since been proved Isaac Pitman and Sons Ltd. 5s.) Aerodynamics Branch Material Division, U.S. to be apocryphal. Army Air Corps, and former Chief, Engineering This small volume of 80 pages contains a Section Aeronautics Branch, Department of concise account of the elements of performance Th e Voyage of the "Chelyuskin." Trans Commerce. prediction. By the methods given hypothetical lated by Alec Brown. (Chatto & Windus Division N is subdivided into eight chapters. designs can be rapidly outlined. The book is 18s.) An idea of the subjects dealt with can be self-contained and any reader acquainted with Few details of the adventures of the Soviet gathered from the chapter headings : I, Steady th e fundamentals should be able readily to Arctic Exploration Expedition in 1933 and 1934 Motions and Limiting Accelerations; II, acquire a working knowledge of the subject. reached England at the time. At one time a Symmetric or Pitching Moments ; III, The large number of people were marooned in the Asymmetric or Lateral Moments ; IV, Free Arctic Regions with, it would appear, very little Th e Autogiro and How to Fly It. By Flight, Simple Discussion ; V, The Equations chance of survival. In the end, they were all Reginald Bird. (Pitman. 5s.) of Motion with Solutions for Small Disturbances one by one rescued by the skill and determina from Steady Symmetric Flight ; VI, Numerical This is the second edition of an admirable tion of a few aeroplanes operated by Russian Solution of the Symmetric Equations of little book, which now contains information pilots. The story is, allowing for a certain Chapter V ; VII, Numerical Solutions of the regarding the C.30, "direct control" type. naivete in narration, well told here, and provides Asymmetric Equations ; and VIII, The Spin. The author has been for so long the chief one of the most remarkable testimonies to I t is seen tha t the problems taken include those demonstrator and test pilot of autogiros in th e possibilities of the aeroplane that could associated with the stability and control of an England that his name has become almost be conceived. aeroplane. Professor Melvill Jones has exer synonymous with the flying of them here. He cised great thought in th e selection of a scheme explains the constructional and flying charac which would allow these problems to be pre teristics of this interesting machine in the TRAD E PUBLICATIONS RECEIVED sented in as simple a manner as th e complexity clearest possible way. No one who is at all of the subject would allow. In the Preface to interested in the type can possibly do without Correct Use and Maintenance of "Wimet" thi s Division, Professor Melvill Jones draws this book, which is completed by some excellent Tipped Tools. attentio n to the significant fact that it is rare drawings. [A. C. Wickman Ltd., Coventry.] for anyone actually engaged upon the design Some Notes on the Stroboscope. and construction of aeroplanes to obtain Th e Official History of th e Wa r in th e Ai r : numerical solutions of the equations of motion [A. J. Ashdown Ltd.] for small symmetrical and asymmetrical dis Vol. V. By H. A. Jones. (Clarendon Press. Aircraft and Accessories, 1935. turbances from steady flight. He says tha t one 17s. 6d., or with case of maps 30s.) [The Business Statistics Co., Ltd.] reason for this neglect is tha t the experimental This volume of the British official history Molybdenum Steels. dat a needed have to be extracted from a large covers the period from March, 1917, to March, number of papers, and that the co-ordination [High Speed Steel Alloys Ltd.] 1918. A large portion of it is occupied with of such data is difficult. To remove this dis Firth-Vickers Corrosion-Resisting Steels. th e Zeppelin raids and the beginnings of the advantag e he has made a critical survey of Gotha raids upon England. Owing to the [Firth-Vickers Stainless Steels Ltd.] existing experimental data, and has presented co-operation of the German authorities the The "Shorter" Process of Gear Hardening. the m in an easily accessible form. Further, the fog of war is now completely lifted, and much [Shorter Process Ltd.] opinion is expressed tha t it is th e difficulty of tha t was obscure at the time becomes clear. computation rather than of mathematical Schwarz Adjustable Compound Wooden Air The various measures of anti-aircraft defence analysis which has prevented designers making screws. tha t were adopted are fully described. The use of the methods of stability prediction, and success, or otherwise, of the various schemes [Trost Brothers Ltd.] for this reason the various stages of such com have a more than historic interest and are full Fatigue of Wire. putatio n have been given in detail. In addition of value to the tactician of the future. [Bruntons Limited, Musselburgh.] t o a rigid mathematical treatment of stability The rest of the book is mainly concerned with E. S. C. Tool Steels. problems, a simpler method of approach, air operations in the various "sideshows." In intended to convey general ideas on the [English Steel Corporation, Ltd., Manchester.] some ways this is the most interesting part, behaviour of aeroplanes, is included. The Files. because few people except the individuals suggestion is made that firms engaged on the [English Steel Corporation, Ltd., Manchester.] actually engaged knew much about the work pioneering side of aircraft design would be well A Perfect Spring. a t the time and, except for a few isolated repaid if a small par t of their staff were allocated [Herbert Terry & Sons, Ltd., Redditch.] books of reminiscences, little has appeared t o stability work ; for it should be possible to since. Egypt, Palestine, Mesopotamia and High Tensile Bronzes. show clearly by a systematic approach to the Macedonia all provide lessons for the military [The Manganese Bronze and Brass Co., Ltd., subject, and without undue labour, the con air student, though the days of feats of in Ipswich.] sequences which would follow any proposed dividual derring-do which form the bulk of the Hoffmann Ball and Roller Bearings. chang e in. design. It is clear tha t in this treat narrativ e are probably over. The allied opera ment of the problems of stability and control, [The Hoffmann Manufacturing Company, tion of the Naval air service in Eastern a great endeavour has been made to meet the Ltd., Chelmsford.] waters fill the next section of the book, which needs of the designer. Furthermore, Professor Broomivade Pneumatic Tools for Aircraft Pro concludes with an account of training and duction Duties. [Broom & Wade, Ltd., High Wycombe.]
Aircraft Engineering and Aerospace Technology – Emerald Publishing
Published: Mar 1, 1936
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