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Publication date: 1 February 1931

Ernest F. Relf

DURING the last year or two the construction of several new wind tunnels in this Country has been commenced, after many years of inactivity in this direction. The new tunnels are…

107

Abstract

DURING the last year or two the construction of several new wind tunnels in this Country has been commenced, after many years of inactivity in this direction. The new tunnels are intended either to bring existing equipment up‐to‐date or to meet specific needs for researches which cannot be satisfactorily carried out in the older tunnels. In all cases the new tunnels are of types very different from those previously in use in this country, and it is interesting to trace the reasons for the change. In order to do this it would be well to review the history of the development of the existing tunnel equipment, in order to understand in the first place why the standard type of wind tunnel used in this country was entirely different from, and in some respects less efficient than, that developed on the Continent. When the study of aerodynamic problems was undertaken at the National Physical Laboratory in 1909, the question of a suitable design of wind tunnel was naturally one of the first to be raised.

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Aircraft Engineering and Aerospace Technology, vol. 3 no. 2
Type: Research Article
ISSN: 0002-2667

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Article
Publication date: 1 January 1930

Ernest F. Relf

THERE has been no diminution during the past year in the number of old and new problems demanding research, and all available equipment has been in continuous use. In spite of…

32

Abstract

THERE has been no diminution during the past year in the number of old and new problems demanding research, and all available equipment has been in continuous use. In spite of this, it is probably true to say that the programme of researches in hand at the moment is even more extensive than it was a year ago. This is very largely due to the ever‐increasing complexity of the questions that arise, and to the consequent increase in the amount of time and labour necessary for the solution.

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Aircraft Engineering and Aerospace Technology, vol. 2 no. 1
Type: Research Article
ISSN: 0002-2667

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Publication date: 1 January 1929

Ernest F. Relf

IT is scarcely possible, in anything short of a volume, to review completely the various phases of Aeronautical research during the year that has just closed; the most that can be…

82

Abstract

IT is scarcely possible, in anything short of a volume, to review completely the various phases of Aeronautical research during the year that has just closed; the most that can be done in a short space is to mention the main directions in which that research has increased our knowledge, and to deal in slightly more detail with those investigations which seem to be of the greatest importance. Aeronautics is essentially an experimental science, since all but the simplest problems in the motion of a real fluid have hitherto defied analytical treatment. Every attempt is being made to understand more fully the nature of fluid motion, and to apply such knowledge to the practical problems of flight, but at the moment progress is mainly dependent upon experimental investigations either upon models in the wind tunnel or upon actual aeroplanes and their component parts. The equipment for such work in this country has been fully employed during the last year, and steps have been taken to increase the facilities for model experiments by the provision of a Compressed Air Tunnel in which models can be tested at a value of Reynold's Number equal to that attained by an aeroplane in flight. Such a tunnel has been in use for about two years in the United States, and has given ample proof of its great possibilities as a research instrument.

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Aircraft Engineering and Aerospace Technology, vol. 1 no. 1
Type: Research Article
ISSN: 0002-2667

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Article
Publication date: 1 September 1932

Heinrich Focke

THE constant effort towards improvement of the aerodynamic design of aeroplanes which is essential to meet the demand for higher efficiency and better properties, requites…

37

Abstract

THE constant effort towards improvement of the aerodynamic design of aeroplanes which is essential to meet the demand for higher efficiency and better properties, requites increasingly close collaboration between design office, factory, and aerodynamic laboratory. With the increasing need for rapid production, it is no longer possible to devise a comprehensive programme of tests embodying all the flow problems arising in connection with a new design, and entrust the execution of these to a research laborator serving the industry generally. If aerodynamic research is to be brought to bear directly on the particular objective in each case, it is indispensable that there should be inter‐working in point of time and in point of technical object, between design office, factory and laboratory.

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Aircraft Engineering and Aerospace Technology, vol. 4 no. 9
Type: Research Article
ISSN: 0002-2667

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Article
Publication date: 1 March 1934

Starr Truscott

A SURVEY of the information available regarding the application of the results of tests of models in towing basins to the design of floats for seaplanes was made by the National…

51

Abstract

A SURVEY of the information available regarding the application of the results of tests of models in towing basins to the design of floats for seaplanes was made by the National Advisory Committee lor Aeronautics in 1929. It was found that the development of flying boats and seaplanes had been assisted very much in the United States, and possibly more in other countries, by tests of models in towing basins or tanks (References 1 and 2). Some tanks already existed which were designed especially for testing models of seaplane floats and the construction of other tanks for this special purpose was projected (References 3 and 4). There was no such tank in the United States; in fact, there were only two tanks, both constructed before the appearance of the seaplane and designed originally to test models of ships. The construction in the United States of a special towing basin that could be devoted to tests of models of seaplane floats and hulls might reasonably be expected to be of great assistance in the further development of this type of aircraft, the importance of which appeared to be increasing.

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Aircraft Engineering and Aerospace Technology, vol. 6 no. 3
Type: Research Article
ISSN: 0002-2667

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Publication date: 1 December 1934

WE cannot help envying those who have achieved fixed and definite views on the question of education and training. There is no subject on which opinions differ more widely. It is…

33

Abstract

WE cannot help envying those who have achieved fixed and definite views on the question of education and training. There is no subject on which opinions differ more widely. It is as many sided as a dice—and there are moments of pessimism when we feel that the results depend almost equally on chance. The real truth is, we suppose, that mental outlooks and temperaments differ to such an extent that what is the perfect curriculum for one student is totally unsuitable for another. In a perfect World, where time and expense were limitless, each candidate would follow his own course with tutors specially selected to care for his own particular needs. But unfortunately this is not possible and it is necessary for each student to be treated as one of a mass and pressed into the chosen mould. If he is so unfortunate as to be incompressible into that particular shape, then so much the worse for him and he cannot avoid the fate of being thrown out as a reject.

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Aircraft Engineering and Aerospace Technology, vol. 6 no. 12
Type: Research Article
ISSN: 0002-2667

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