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THE fourth annual Aircraft Production Conference at Southampton was held shortly before we closed for press with this issue, too late for an adequate report to be prepared. A full report will however appear in our March issue, and we defer until then also any editorial discussion of the general...
A method is presented for calculating influence coefficients in multispar wings of any plan form. Shear deflexion, chordwise bending and taper are taken into account. All the bending material is concentrated at the rib and spar booms and the skin is assumed to carry only shear. The method is...
IT is intended to show in this article the magnitude of the weight saving which can be achieved on simple struts. It is necessary for any comparison to derive the weight and shape of the solid or hollow strut theoretically most efficient. This can be done most conveniently using the Calculus of...
THE simple actuator disk theory, first postulated by Froude over sixty years ago, is the basis of most helicopter induced flow theory. This disk is an idealization of a rotor which uniformly accelerates the air with no loss of thrust at the blade tips. It can therefore be regarded as the limit...
The report covers an extension of the surface tube technique devised by T. E. Stanton to measure the intensity of skin friction. A simple surface tube is described and a method of varying the surface tube calibration curves to cover other fluids and temperatures is developed. An empirical...
Probleme des Plastizittsthcorie Problems of the Theory of Plasticity. By William Prager Birkhuser Verlag, Basel and Stuggart, Sf 12.50.
THE need for a high temperature material for the construction of supersonic aircraft has caused manufacturers to investigate the properties and behaviour of titanium. Convair of San Diego has carried out tests on titanium and compared the results with those obtained from other materials.
Under this heading are published regularly abstracts of all Reports and Memoranda of the Aeronautical Research Council, Reports and Technical Memoranda of the United States National Advisory Committee for Aeronautics and publications of other similar Research Bodies as issued.
Industrial XRay Unit SolusSchall Ltd., 1822 New Cavendish Street, W.1, have recently produced an industrial Xray unit for the radiographic inspection of a large range of specimens, from light alloy castings to steel sections 4 in. thick. The unit can be used anywhere, and the tube voltage can be...
Hot Air Reducing Valves A new scries of hot air reducing valves for aircraft has just been added to the range made by the Hymatic Engineering Co. Ltd., of Redditch, Worcs. They are designed to control the hot air tapped from a jet engine compressor for a variety of purposes. Known as the PS.60...
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