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Article
Publication date: 1 June 1947

G.S. Hislop

THE variation of full throttle engine brake horsepower with altitude at constant rotational speed is a matter of great importance to aircraft designers and those concerned with…

65

Abstract

THE variation of full throttle engine brake horsepower with altitude at constant rotational speed is a matter of great importance to aircraft designers and those concerned with the measurement of aircraft performance. For the former its main importance probably lies in the design of aeroplanes intended for high altitude use where accurate knowledge of the engine power available is of paramount importance in the evolution of a successful aircraft. In the measurement of aircraft performance it is necessary to reduce the observed results at non‐standard atmospheric conditions to those obtaining under the chosen standard conditions, and for this it is essential that the variation of engine power with altitude is well established.

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Aircraft Engineering and Aerospace Technology, vol. 19 no. 6
Type: Research Article
ISSN: 0002-2667

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Book part
Publication date: 18 May 2021

Judy Rollins

Abstract

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‘Purpose-built’ Art in Hospitals: Art with Intent
Type: Book
ISBN: 978-1-83909-681-5

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Article
Publication date: 1 November 1948

Under this heading are published regularly abstracts of all Reports and Memoranda of the Aeronautical Research Council, Reports and Technical Notes of the United States National…

33

Abstract

Under this heading are published regularly abstracts of all Reports and Memoranda of the Aeronautical Research Council, Reports and Technical Notes of the United States National Advisory Committee for Aeronautics and publications of other similar Research Bodies as issued

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Aircraft Engineering and Aerospace Technology, vol. 20 no. 11
Type: Research Article
ISSN: 0002-2667

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Article
Publication date: 1 June 1958

W.G. Molyneux

The current trend in ground resonance testing is aimed at providing aircraft modes of vibration appropriate to the free‐free condition. To achieve this objective the rigid body…

295

Abstract

The current trend in ground resonance testing is aimed at providing aircraft modes of vibration appropriate to the free‐free condition. To achieve this objective the rigid body frequencies of the aircraft on its supports must be low by comparison with the frequency of any mode of distortion. A minimum frequency ratio of 1:3 is specified. The various types of support in current use are considered in relation to the minimum frequency they are likely to provide. It appears that none are capable of frequencies lower than about 0·5 cycles/sec. For the forthcoming generation of large thin‐wing aircraft with fundamental frequencies below 1 cycle/sec. some further development in methods of support seems necessary. A non‐linear spring system appears to hold great promise in this respect, and one such system is described capable of frequencies less than 0·25 cycles/sec. for a limited range of movement.

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Aircraft Engineering and Aerospace Technology, vol. 30 no. 6
Type: Research Article
ISSN: 0002-2667

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Article
Publication date: 1 July 1956

Ing. E. Gassner

IN aircraft construction, until about fifteen years ago, the customary static method of stressing generally also provided for an adequate fatigue strength. This does not now apply…

322

Abstract

IN aircraft construction, until about fifteen years ago, the customary static method of stressing generally also provided for an adequate fatigue strength. This does not now apply for various reasons (e.g. increased flight speeds, use of high‐strength materials with changed fatigue properties). It is, therefore, necessary to establish design rules which take account of more recent knowledge; which variables are to be specially considered, and what their importance is in a particular case, becomes clear from fatigue tests which, to a considerable extent, cater for the peculiar loading conditions of flight (service endurance tests or programme‐loading tests). The principle of these tests was established in the DVL (1938 to 1941) and it is now in general use in automobile design for determining the relation between fatigue strength and endurance (life function) as in many cases of service failures a very good agreement with these tests can be observed.

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Aircraft Engineering and Aerospace Technology, vol. 28 no. 7
Type: Research Article
ISSN: 0002-2667

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Article
Publication date: 1 November 1983

RFD Ltd., manufacturer of aircraft recovery systems and lifesaving equipment for both the aviation and marine industries, has announced an important management appointment.

17

Abstract

RFD Ltd., manufacturer of aircraft recovery systems and lifesaving equipment for both the aviation and marine industries, has announced an important management appointment.

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Aircraft Engineering and Aerospace Technology, vol. 55 no. 11
Type: Research Article
ISSN: 0002-2667

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Article
Publication date: 1 September 1939

Under this heading are published regularly abstracts of all Reports and Memoranda of the Aeronautical Research Committee, Reports and Technical Notes of the U.S. National Advisory…

21

Abstract

Under this heading are published regularly abstracts of all Reports and Memoranda of the Aeronautical Research Committee, Reports and Technical Notes of the U.S. National Advisory Committee for Aeronautics and publications of other similar research bodies as issued

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Aircraft Engineering and Aerospace Technology, vol. 11 no. 9
Type: Research Article
ISSN: 0002-2667

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Article
Publication date: 1 May 1959

H.R. Alexander

The calculation of undercarriage landing reactions and dynamic stresses is discussed, and the merging of the two calculations under certain circumstances is proposed. …

41

Abstract

The calculation of undercarriage landing reactions and dynamic stresses is discussed, and the merging of the two calculations under certain circumstances is proposed. ? formulation of the combined problem is outlined, and numerical examination of a simple case shows that in some cases the reaction forces are appreciably reduced by the adoption of the combined approach. Finally, a criterion is derived which could be used in the early stages of undercarriage design to predict the elicci of aircraft flexibility.

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Aircraft Engineering and Aerospace Technology, vol. 31 no. 5
Type: Research Article
ISSN: 0002-2667

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Article
Publication date: 1 April 1959

Melvin Zaid and Frederick L. Ryder

A new analogue approach is presented for the solution to the multi‐celled, multi‐stringer tube subjected to flexural and torsional loads. This approach is based upon the condition…

18

Abstract

A new analogue approach is presented for the solution to the multi‐celled, multi‐stringer tube subjected to flexural and torsional loads. This approach is based upon the condition of current continuity and an equivalent to Castigliano's theorem which holds for certain types of electrical networks. The associated equations lend themselves to creating an analogue with a high degree of pictorial similarity, so that the network can be constructed without formulating the structural equations. The analogue of a simple two‐celled structure is devised and the results obtained by electrical circuit analysis are checked against the structure.

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Aircraft Engineering and Aerospace Technology, vol. 31 no. 4
Type: Research Article
ISSN: 0002-2667

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Article
Publication date: 1 November 1951

C.H. Cumberland and G.S. Bowey

Water systems in civil aircraft, stimulated by passenger comfort needs, have grown to be a comprehensive and important part of aircraft engineering. In this article, following a…

66

Abstract

Water systems in civil aircraft, stimulated by passenger comfort needs, have grown to be a comprehensive and important part of aircraft engineering. In this article, following a review of the system types, the design features arc discussed in detail and emphasis has been placed on the functional and hygiene requirements, and on the need for simplicity and weight conservation. Attempts have been made to augment air‐borne water supplies by reclamation means, but these have not been too successful. Investigations should therefore continue into the ways and means of improving the utilization of existing ‘fixed’ capacity systems. Installation safety aspects are also discussed.

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Aircraft Engineering and Aerospace Technology, vol. 23 no. 11
Type: Research Article
ISSN: 0002-2667

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