Performance of Light Aircraft

Performance of Light Aircraft PDF

Author: John T. Lowry

Publisher: AIAA

Published: 1999

Total Pages: 508

ISBN-13: 9781563473302

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Pilots, aviation students, kitplane builders, aircraft fleet operators and aeronautical engineers can all determine how their propeller-driven airplanes will perform, under any conditions, by using the step-by-step bootstrap approach introduced in this book. A few routine flying manoeuvres (climbs, glides, a level speed run) will give the necessary nine numbers. High-school level calculations then give performance numbers with much greater detail and accuracy than many other methods - for the reader's individual aircraft.

Aircraft Stories

Aircraft Stories PDF

Author: John Law

Publisher: Duke University Press

Published: 2002-04-24

Total Pages: 265

ISBN-13: 0822383543

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In Aircraft Stories noted sociologist of technoscience John Law tells “stories” about a British attempt to build a military aircraft—the TSR2. The intertwining of these stories demonstrates the ways in which particular technological projects can be understood in a world of complex contexts. Law works to upset the binary between the modernist concept of knowledge, subjects, and objects as having centered and concrete essences and the postmodernist notion that all is fragmented and centerless. The structure and content of Aircraft Stories reflect Law’s contention that knowledge, subjects, and—particularly— objects are “fractionally coherent”: that is, they are drawn together without necessarily being centered. In studying the process of this particular aircraft’s design, construction, and eventual cancellation, Law develops a range of metaphors to describe both its fractional character and the ways its various aspects interact with each other. Offering numerous insights into the way we theorize the working of systems, he explores the overlaps between singularity and multiplicity and reveals rich new meaning in such concepts as oscillation, interference, fractionality, and rhizomatic networks. The methodology and insights of Aircraft Stories will be invaluable to students in science and technology studies and will engage others who are interested in the ways that contemporary paradigms have limited our ability to see objects in their true complexity.

Advanced Aircraft Design

Advanced Aircraft Design PDF

Author: Egbert Torenbeek

Publisher: John Wiley & Sons

Published: 2013-05-28

Total Pages: 412

ISBN-13: 1118568095

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Although the overall appearance of modern airliners has not changed a lot since the introduction of jetliners in the 1950s, their safety, efficiency and environmental friendliness have improved considerably. Main contributors to this have been gas turbine engine technology, advanced materials, computational aerodynamics, advanced structural analysis and on-board systems. Since aircraft design became a highly multidisciplinary activity, the development of multidisciplinary optimization (MDO) has become a popular new discipline. Despite this, the application of MDO during the conceptual design phase is not yet widespread. Advanced Aircraft Design: Conceptual Design, Analysis and Optimization of Subsonic Civil Airplanes presents a quasi-analytical optimization approach based on a concise set of sizing equations. Objectives are aerodynamic efficiency, mission fuel, empty weight and maximum takeoff weight. Independent design variables studied include design cruise altitude, wing area and span and thrust or power loading. Principal features of integrated concepts such as the blended wing and body and highly non-planar wings are also covered. The quasi-analytical approach enables designers to compare the results of high-fidelity MDO optimization with lower-fidelity methods which need far less computational effort. Another advantage to this approach is that it can provide answers to “what if” questions rapidly and with little computational cost. Key features: Presents a new fundamental vision on conceptual airplane design optimization Provides an overview of advanced technologies for propulsion and reducing aerodynamic drag Offers insight into the derivation of design sensitivity information Emphasizes design based on first principles Considers pros and cons of innovative configurations Reconsiders optimum cruise performance at transonic Mach numbers Advanced Aircraft Design: Conceptual Design, Analysis and Optimization of Subsonic Civil Airplanes advances understanding of the initial optimization of civil airplanes and is a must-have reference for aerospace engineering students, applied researchers, aircraft design engineers and analysts.