On Thursday, October 9, 1958, a new aero‐thermo‐dynamics laboratory in the mechanical engineering wing of the R.A.F. Technical College at Henlow was formally opened by Sir William…
Abstract
On Thursday, October 9, 1958, a new aero‐thermo‐dynamics laboratory in the mechanical engineering wing of the R.A.F. Technical College at Henlow was formally opened by Sir William Farren, Technical Director of A. V. Roc & Co. Ltd.
THE year which has seen the twenty‐fifth anniversary of the first flight in a mechanically propelled aeroplane, and the tenth birthday of the Royal Air Force, has been marked by…
Abstract
THE year which has seen the twenty‐fifth anniversary of the first flight in a mechanically propelled aeroplane, and the tenth birthday of the Royal Air Force, has been marked by notable technical achievements. It leaves us with good reasons to expect even better of 1929.
IT is well known that cross‐sections of a thin‐walled shell, unconstrained at the ends, do not necessarily remain plane under the action of an applied torque, but may undergo…
Abstract
IT is well known that cross‐sections of a thin‐walled shell, unconstrained at the ends, do not necessarily remain plane under the action of an applied torque, but may undergo axial displacement or warp, as it is called.
In the preface it is stated that a need exists for a ‘comprehensive treatment of the subject that will present fundamentals in broad perspective but without emphasis on any one…
Abstract
In the preface it is stated that a need exists for a ‘comprehensive treatment of the subject that will present fundamentals in broad perspective but without emphasis on any one type of system’. The book is written as a single volume introduction to the subject so as to fill this need in part. The missiles dealt with in the book are what, in this country, would be more properly called guided missiles; the author states that the broader description ‘advanced’ was adopted to avoid implying any unintended restriction upon the applicability of basic principles. The book is competently written and a number of diverse technical aspects are handled in a workmanlike manner. There is a refreshing soundness and depth to the book which regrettably is not often found in books on guided missiles from across the Atlantic. To cover a subject embracing so many different techniques in a book of less than 600 pages is, of course, a difficult task. The treatment on the whole therefore has to be concise. This in itself is not a failing as the reader will generally be expert in at least one of the areas and will gain enough from the book to refresh his memory and enough to see what are the main features applicable to guided weapons. In areas where the reader is less well trained it will be necessary for him to supplement the text by reading elsewhere. To aid him in this the book is adequately provided with references (without overburdening the text). The treatment is a formal presentation of the basic theories, emphasising the common ideas underlying, for example, signal detection in the presence of noise and quality control. The reader would finish the book with a sound idea of the fundamentals but with only the vaguest idea of how to set about the design of a missile. What is required is a sequel to this book where the logical design, say, of three or four types of missiles is worked through with a generous number of examples.
Hawker Siddeley Aviation Ltd. have announced the appointment to the Board of Mr G. C. I. Gardiner, C.B.E.,M.I.Mcch.E.,F.R.Ac.S.,asTcchnicalDircctor (Guided Weapons).
An Outline of the Wind Tunnel Facilities available at Hatfield and a Description of the New Multi‐Fan Non‐Return Circuit V/S.T.O.L. Wind Tunnel. THE wind tunnel establishment at…
Abstract
An Outline of the Wind Tunnel Facilities available at Hatfield and a Description of the New Multi‐Fan Non‐Return Circuit V/S.T.O.L. Wind Tunnel. THE wind tunnel establishment at Hatfield dates back to 1954, when the 2 ft. by 2 ft. high speed tunnel and the 9 ft. by 7 ft. low speed tunnel were commissioned.
D.J. MA Maull and B.Sc.(Eng. )
FOUNDATION THE Francis Mond Professorship of Aeronautical Engineering was established at Cambridge University in 1919 and was certainly the first chair in aeronautical engineering…
Abstract
FOUNDATION THE Francis Mond Professorship of Aeronautical Engineering was established at Cambridge University in 1919 and was certainly the first chair in aeronautical engineering in this country. The initial holder of this Chair was B. M. Jones (now Sir B. Mclvill Jones), who had worked at the R.A.E. and other establishments during the First World War. Professor Melvill Jones, on arriving at Cambridge, found that in fact the University was not able to finance his research or supply him with laboratory space and had to rely upon the Air Ministry for funds and apparatus. This resulted in the main research activity of the department being directed towards flight experiments using R.A.F. aircraft flying from Duxford. Due to their interest in aeronautics, however, the Engineering Laboratory at Cambridge did supply Professor Melvill Jones with space, and in 1921 an optional paper was set in Aeronautics in the Mechanical Sciences Tripos.
The free and harmonically forced flexural vibrations of missiles resting on fixed or mobile launch platforms are considered. A general matric formulation is given for the problem…
Abstract
The free and harmonically forced flexural vibrations of missiles resting on fixed or mobile launch platforms are considered. A general matric formulation is given for the problem in which the effects of variable boundary conditions at the base support, variable axial loads along the missile length, variable stiffness and material properties, variable mass, variable mass moment of inertia, variable shear stiffness, and variably distributed forcing functions are treated. The problem is matrically formulated in standard eigenvalue form, and no special coding should be required for organizations that are currently solving eigenvalue problems on electronic digital computers. For a particular problem only fundamental data are needed for filling in the element locations of the matrices involved, and almost all calculations are performed within the computer. The matric formulation presented herein is also valid for partially and completely restrained cantilever beams.
A survey is made of the instruments and methods used to measure total and static pressure and direction in three‐dimensional flow. Comparative tests in a towing tank of two…
Abstract
A survey is made of the instruments and methods used to measure total and static pressure and direction in three‐dimensional flow. Comparative tests in a towing tank of two designs of live‐orifice pitot‐type probe showed the advantage, within a limited range of flow inclination, of the instrument with independent static pressure orifices. Speed and angle of flow characteristics are Riven for these two probes, which differed in the shape of head.