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AFTER protracted discussion the choice for the B.E.A. jet airliner has fallen on the de Havilland 121. The main reaction to this decision is that it marks a return to the principle that the customer is right. It had been no secret that B.E.A. strongly favoured the DH.121 rather than the Bristol...
THE bootstrap scheme of refrigeration is an open cycle system resembling a turbojet engine in its mode of working, but the overall heat energy changes occur in a reversed sense.
WILLIAM Jessop & Sons Ltd., Brightside Works, Sheffield, have in recent years concentrated on the manufacture and marketing of steel and other special metals to particular requirements. With such a programme extensive research facilities are needed and some 190 physicists, metallurgists,...
AN analysis of the mechanism of jet drag is given by Stratford, it being suggested that jet drag is zero if the density velocity products of the freestream and jet are equal, among other conditions. Under certain conditions Stratford concludes that negative jet drag i.e. thrust augmentation is...
The Third Power Approximation introduced in the previous section is here applied to determine the stiffness characteristics of symmetrical doublewedge wings subjected to large flexural and torsional deformations. This method is believed to yield results of sufficient accuracy for practical...
THE twentysixth annual meeting of the Institute of Aeronautical Sciences was held, as usual, in the SheratonAstor Hotel, New York. The papers delivered during the week covered the widest range of subjects to date, including gravity, and antigravity, hypersonic aerodynamics, space propulsion and...
A conference on noise, dealing particularly with noise in industry, has been organized by the British Occupational Hygiene Society. It will be held in London on Tuesday, April 1, 1958, starting at 11.15 a.m. The conference is open to nonmembers of the Society on payment of a registration fee of...
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.
A fullytransistorized digital control computer has been developed by RamoWooldridge Corporation, Los Angeles, for the general automation of both production and engineering procedures in the aircraft industry.
Teramel is the name given to a new syntheticenamelled winding wire which British Insulated Callender's Cables Ltd. have recently developed to solve problems set by a variety of electrical equipment.
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