Some Operating Problems of Future Transport Aircraft

1952 ◽  
Vol 56 (495) ◽  
pp. 189-200 ◽  
Author(s):  
Christopher Dykes

To judge by the newspapers, the day of the turbine powered transport aircraft is already here. This is not to say that the piston engine is no longer required; probably it will be in use for many years to come, particularly for small aircraft, but new major designs must certainly be planned so as to take advantage of this revolutionary new form of prime mover.

Author(s):  
J. S. Weiner ◽  
Chris Stringer

It is unfortunately not possible to follow in any detail every stage of Smith Woodward’s activities at Piltdown. No diaries or note-books exist of the work done, there is nowhere a complete record of the various finds as they were made. Woodward kept copies of very few of his own letters and we have only the letters written to him and now preserved at the British Museum. When the American palaeontologist Osborn came over in 1920, Woodward dictated some notes which help to allocate the various discoveries. Apart from these notes and the one-sided record of the correspondence, there are only the reports in the scientific literature and popular lectures on Piltdown as primary sources. Woodward does not appear in general to have been a secretive man, but over the Piltdown material he went to some lengths to keep the whole affair as quiet as possible until near the time of the public meeting in December 1912. He did not consult any of his colleagues in the Museum about the finds or about the interpretation he was to place on them. Mr. Hinton says that to his colleagues at South Kensington Woodward’s diagnosis of E. dawsoni came as a surprise mingled with some dismay, for there was much scepticism of the new form amongst his museum colleagues, including Oldfield Thomas and Hinton himself. They would have advised caution, he says. Keith knew nothing of the events in Sussex until rumours reached him in November. He wrote asking for a view of the exciting material, but on his visit on 2 December to the Museum he was received rather coldly and allowed a short twenty minutes. But, judging from Dawson’s letters in 1912, it seems fair to say that Woodward was merely seeking to avoid a premature disclosure, for he had decided early on that Piltdown would indeed prove a sensational event. Woodward did not want any of Dawson’s ‘lay’ friends to come along on his first visit to the gravel when he had yet to make up his mind about the real importance of Dawson’s find and of the necessity for systematic excavation.


2009 ◽  
Vol 1 (2) ◽  
pp. 487-501 ◽  
Author(s):  
Idit Alphandary

In the films For Ever Mozart, In Praise of Love and I Salute You Sarajevo, Go-dard’s images introduce radical hope to the world. I will demonstrate that this hope represents an ethical posture in the world; it is identical to goodness. Radical hope is grounded in the victim’s witnessing, internalizing and remembering catastrophe, while at the same time holding onto the belief that a variation of the self will survive the disaster. In The Gift of Death, Jacques Derrida argues that choosing to belong to the disaster is equivalent to giving the pure gift, or to goodness itself, and that it suggests a new form of responsibility for one’s life, as well as a new form of death. For Derrida, internalizing catastrophe is identical to death—a death that surpasses one’s means of giving. Such death can be reciprocated only by reinstating goodness or the law in the victim’s or the giver’s existence. The relation of survival to the gift of death—also a gift of life—challenges us to rethink our understanding of the act of witnessing. This relation also adds nuance to our appreciation of the intellectual, emotional and mental affects of the survival of the victim and the testimony and silence of the witness, all of which are important in my analysis of radical hope. On the one hand, the (future) testimony of the witness inhabits the victim or the ravaged self (now), on the other hand, testimony is not contemporaneous with the shattered ego. This means that testimony is anterior to the self or that the self that survives the disaster has yet to come into existence through making testimony material. Testimony thus exists before and beyond disaster merely as an ethical posture—a “putting-oneself-to-death or offering-one’s-death, that is, one’s life, in the ethical dimension of sacrifice,” in the words of Derrida. The witness is identical to the victim whose survival will include an unknown, surprising testimony or an event of witnessing. The testimony discloses the birth or revelation of a new self. And yet this new self survives through assuming the position of the witness even while s/he is purely the victim of catastrophe, being put to death owning the “kiss of death.”


1948 ◽  
Vol 158 (1) ◽  
pp. 52-65 ◽  
Author(s):  
G. H. Martin

The advent of the gas turbine and its effect on the position of the steam turbine for the central power station is briefly discussed. In the opinion of the author the steam turbine will hold the field for large power generation for many years to come, and there is no immediate prospect of any other form of prime mover becoming a serious competitor for the generation of electricity in the central power station. Data are given indicating the gain in thermal efficiency that can be expected from increased steam conditions up to 2,000 lb. per sq. in., and 1,000 deg. F. with and without reheating. The advantages of reheating as a means of obtaining higher efficiency are strongly emphasized. Methods of operation to enable quick starting are discussed. Some of the principal constructional problems created by high steam conditions are briefly discussed and methods of overcoming the difficulties are indicated. The essence of the paper is to examine, in as simple a manner as possible, the means available for improving the efficiency of the central power station; and in an effort to achieve this, detailed methods of calculation are not included, as it is considered they would detract from a clear appreciation of the results. The minimum of assumptions have been made, so that the curves represent a true picture of the actual gains that could be obtained in practice.


2021 ◽  
pp. 283-314
Author(s):  
Karl Kollmann ◽  
Calum E. Douglas ◽  
S. Can Gülen

Dr. Kollmann (and his colleagues) were keenly aware that the jet engine was the powerplant of future. They clearly stated this when interrogated by the British intelligence agents in June 1945 (from Report POW/ENG/6, Evaluation Report No. 539, 16 Apr 46). They thought that the piston engine would still be used for some time to come for transport purposes, but they did not think that it had much application in war time. They anticipated that the jet engines would constitute the bulk of the fleet, to the tune of 60-70%. However, they did not foresee a full demise of piston engines.


Author(s):  
Barbara Lounsberry

Woolf seeks out new realms in her 1920 diary. In January, she wonders how far she should allow herself to report indiscretion in her diary. In March, she ponders something more profound: whether she can write “a diary of the soul.” In April, she considers whether her diary can “trench upon literature”—another (but related) realm, as the soul holds her “precious art.” On her thirty-eighth birthday, January 25, 1920, she had conceived of “a new form for a new novel”—her first modernist novel, Jacob’s Room. Declaring that she could “think [herself] a novelist” if she could record “talk,” Woolf experiments across her 1920 diary with different ways to render conversations. She practices, in short, for her public prose. In April, she is sent W.N.P. Barbellion’s famous Journal of a Disappointed Man. It spurs her exploration of the soul, offers her half the plot of Mrs. Dalloway, and helps her envision To the Lighthouse to come. In October, she publishes a lengthy commemorative essay on John Evelyn’s diary, probing the diary’s power—and also how this seventeenth-century diarist differs from his contemporary descendants.


2019 ◽  
Vol 91 (7) ◽  
pp. 938-948 ◽  
Author(s):  
Paweł Guła ◽  
Dawid Ulma ◽  
Krzysztof Żurek ◽  
Rafał Żurawski

Purpose The purpose of this paper is to present the challenges of turbine engine installation on small aircraft. The work was a part of the European Union project Efficient Systems and Propulsion for Small Aircraft, FP7 EU – Activity, 7.1.4. improving cost efficiency. Design/methodology/approach Few of the most interesting issues associated with replacing a piston engine with a turboprop engine were chosen: changes in engine bay cooling, air inlet, exhaust system, nacellès weight and parts reduction, flight tests and performance. The publication presents an approach to: design, assemble and test the small aircraft with a turboprop engine. Findings Replacement of piston engine by turbine was carried out. The full program of ground and flight test small aircraft has been successfully completed. Pros and cons of the new design are described in the paper. Practical implications Currently, aviation gasoline (AVGAS ) is increasingly being replaced by JET-A1 (kerosene-type fuels) or diesel fuel. The change concerns engine replacement and all the necessary additional components on the aircraft. This is consistent with the new directions of development of aviation: clean, green and eco design. Replacing the piston engine with a turbine allows improvement to performance and reduces operation cost. Originality/value The achieved results allow for identifying and highlighting new directions of aviation technology development. A significant added value is to draw attention to the necessity of preparing for future requirements and amendments in regulations for the new class of aircraft: general aviation SET(L) – single engine turboprop.


1999 ◽  
Vol 103 (1022) ◽  
pp. 196-199
Author(s):  
Mike Evans

The twentieth century has seen man’s mastery of the air, and fundamental to that achievement has been the provision of power to sustain the process of flight. For the first forty years the piston engine reigned supreme, yet for even longer now the power to fly has been provided by the gas turbine. In the conception and development of this prime mover Britain can justly claim to have led the world. Two servants of the Crown quite independently had the vision and that amalgam of creative and analytical powers to see what might lie beyond the piston engine — one a scientific civil servant working at the Royal Aircraft Establishment (RAE) and the other, remarkably, a young RAF officer already distinguishing himself as a pilot. But the birth of the jet engine proved to be a painful process. While early aircraft designers had embraced the piston engine, neither Government nor the aircraft or aero engine industry showed interest initially in the gas turbine. The change in attitude began when war approached in 1939 and thereafter accelerated in the effort to move from bench demonstrator status to a full-production engine capable of contributing to the outcome of the war. It was in this difficult and complex process of transition that Dr Harold Roxbee Cox — Lord Kings Norton — was to play such a vital role. To appreciate his achievements it is appropriate to remind ourselves of the progress — or lack of it — on the gas turbine prior to his becoming involved.


2014 ◽  
Vol 57 (1) ◽  
pp. 107-129 ◽  
Author(s):  
ANNA PLASSART

ABSTRACTThe article examines Scottish discussions surrounding the French revolutionary wars in the early and mid-1790s. It argues that these discussions were not built along the lines of the dispute that set Burke against the English radicals, because arguments about French ‘cosmopolitan’ love for mankind were largely irrelevant in the context of Smithian moral philosophy. The Scottish writers who observed French developments in the period (including the Edinburgh Moderates, James Mackintosh, John Millar, and Lord Lauderdale) were, however, particularly interested in what they interpreted as France's changing notion of patriotism, and built upon the heritage of Smithian moral philosophy in order to offer original and powerful commentaries of French national feeling and warfare. They identified the ‘enthusiastic’ nature of French national sentiment, and the replacement of traditional patriotism with a new form of relationship between the individual and the nation, as the most significant and dangerous element to come out of the French Revolution.


Author(s):  
Thuy Linh Nguyen Tu
Keyword(s):  
New Form ◽  

Based on interviews and observations of cosmetics retailers and shoppers at several malls in Ho Chi Minh City, this chapter considers how cosmetics consumption inaugurated a new form of what scholar Jonathan Reinarz termed “skinliteracy” in Vietnam. Though purchases of prestige cosmetics far outpace those of luxury clothing, sales are not easy to come by. Retailers instruct customers to consider a product’s national origins—French, Scottish, Japanese, Korean, and American products were seen as quite distinct—to ensure “suitability” (hop) with their own “Vietnamese” skin. As such, this chapterargues that the language of “land” and “landscape” that dominates discussions of cosmetics works to narrate women’s consumption as a reflection of their nation’s standing, and to foster a feeling and imagination about which nations might serve as “suitable” models and allies. In this sense, cosmetics consumption becomes a way women narrate their experiences of development and their feelings about the modernity enveloping them.


2017 ◽  
Vol 26 (1) ◽  
pp. 39-52
Author(s):  
Julian Murphet

This paper argues for a specific labour of form in the so-called Trilogy, namely, the irreversible mortification of novelistic discourse. The great three-novel sequence is the literary space in which Beckett contrived to have done with his most dangerous temptations towards “life and invention”, in and around the generic tar-pits of the comic novel. With implacable resolve, the author laid out before him the generic coordinates – novelistic narration; novelistic description; novelistic characterization; and the novelistic calibration of ‘opinions’ – only to take each to the internal limit of its humanistic delusion. The result is a leave-taking with a difference: not the sudden supersession or heroic vanquishing of ‘novelism’, but its laborious mortification, in order to immunise the promise of some form to come against the lingering infections of a now undead genre. Beckett's path through the novel was immanent, subjecting it to a process of degradation and internal dissolution, rather than attacking it through satire or side-stepping it altogether. The new form toward which he was reaching could only be attained through this patient and systematic dismantlement of the novel form from within its own coordinates. Reviewing the accelerating and metastasizing immanent critique from novel to novel in the Trilogy, this essay demonstrates how remorseless and logical it was, and how the momentum it gained served an aesthetic ambition that was also a biographical purgation: never again would Beckett attempt a novel. From this point forward, prose was liberated to serve non-novelistic ends.


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