Download or read book Turbofan Engines their Present and Future written by V. Starostin and published by . This book was released on 1966 with total page 15 pages. Available in PDF, EPUB and Kindle. Book excerpt: The article describes a way of making turbofan engines by the use of well-designed turbojet engines and discusses the efficiency of such a conversion. The use of an afterburner in a turbofan engine, permitting the use of these engines at high supersonic flight speeds, is also discussed. The author cites specific English and American aircraft now using turbofan engines. A diagram of the X353-5 turbofan engine with a high by-pass ratio is shown; this engine is intended for the XV-5A VERTOL airplane. Turbofan engines with afterburners are being mounted in test aircraft. The author discusses performance of such engines. Future tactical aircraft and the type of engine required for their missions are described. Replacing of kerosene with liquid hydrogen is considered. The importance of reducing the weight of engines in order to increase the capability of airplanes is stressed. (Author).
Download or read book Commercial Aircraft Propulsion and Energy Systems Research written by National Academies of Sciences, Engineering, and Medicine and published by National Academies Press. This book was released on 2016-08-09 with total page 123 pages. Available in PDF, EPUB and Kindle. Book excerpt: The primary human activities that release carbon dioxide (CO2) into the atmosphere are the combustion of fossil fuels (coal, natural gas, and oil) to generate electricity, the provision of energy for transportation, and as a consequence of some industrial processes. Although aviation CO2 emissions only make up approximately 2.0 to 2.5 percent of total global annual CO2 emissions, research to reduce CO2 emissions is urgent because (1) such reductions may be legislated even as commercial air travel grows, (2) because it takes new technology a long time to propagate into and through the aviation fleet, and (3) because of the ongoing impact of global CO2 emissions. Commercial Aircraft Propulsion and Energy Systems Research develops a national research agenda for reducing CO2 emissions from commercial aviation. This report focuses on propulsion and energy technologies for reducing carbon emissions from large, commercial aircraftâ€" single-aisle and twin-aisle aircraft that carry 100 or more passengersâ€"because such aircraft account for more than 90 percent of global emissions from commercial aircraft. Moreover, while smaller aircraft also emit CO2, they make only a minor contribution to global emissions, and many technologies that reduce CO2 emissions for large aircraft also apply to smaller aircraft. As commercial aviation continues to grow in terms of revenue-passenger miles and cargo ton miles, CO2 emissions are expected to increase. To reduce the contribution of aviation to climate change, it is essential to improve the effectiveness of ongoing efforts to reduce emissions and initiate research into new approaches.
Download or read book Current and Future Usage of Materials in Aircraft Gas Turbine Engines written by Ward F. Simmons and published by . This book was released on 1970 with total page 38 pages. Available in PDF, EPUB and Kindle. Book excerpt: The memorandum discusses the applications of heat-resistant metallic materials in aircraft gas turbine engines. Brief background information on the engines of each of the manufacturers is followed by a detailed discussion of the materials used in various components of the engines. Some current trends in turbine-engine materials applications are pointed out. An extensive appendix arranged according to manufacturer, lists materials used in recent and current engines and presents some brief data on size, weight, and application of each of the engines.
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1995 with total page 700 pages. Available in PDF, EPUB and Kindle. Book excerpt: Lists citations with abstracts for aerospace related reports obtained from world wide sources and announces documents that have recently been entered into the NASA Scientific and Technical Information Database.
Download or read book V STOL Concepts in the United States Past Present and Future written by and published by . This book was released on 1984 with total page 52 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book History and Evolution of Aircraft written by Ahmed F. El-Sayed and published by CRC Press. This book was released on 2024-07-31 with total page 687 pages. Available in PDF, EPUB and Kindle. Book excerpt: History and Evolution of Aircraft reviews the history of aviation from early history to the present day, including the evolution milestones of military aircraft, civil aircraft, helicopters, drones, balloons, airships, and their engines. It also provides the background and development of different types of aircraft, including manned and unmanned vehicles, aircraft carriers, fixed or rotary wings, air, sea, and amphibian flight vehicles. Covering current and developing applications of unmanned aerial vehicles (UAVs), the book highlights the prospects of future flying vehicles including automotives and jetpacks. It follows the transition from piston to jet engines that include shaft-based engines (turboprop, turboshaft, and propfan), turbine-based engines (turbojet and turbofan), and athodyd engines (ramjet, turbo-ramjet, and scramjet). The book explores flight vehicles’ technological advancements and evolution, including their geometrical features and performance parameters. It will also include nine appendices resembling databases for all types of aircraft. The book will be a useful reference for academic researchers and aviation, aerospace, and mechanical engineering students taking aerodynamics, aircraft structures, aircraft engines, and propulsion courses. Aviation history enthusiasts will be interested in the scope of the content as well. Instructors can utilize a Solutions Manual for their course.
Download or read book Aircraft Propulsion and Gas Turbine Engines written by Ahmed F. El-Sayed and published by CRC Press. This book was released on 2017-07-06 with total page 1524 pages. Available in PDF, EPUB and Kindle. Book excerpt: Aircraft Propulsion and Gas Turbine Engines, Second Edition builds upon the success of the book’s first edition, with the addition of three major topic areas: Piston Engines with integrated propeller coverage; Pump Technologies; and Rocket Propulsion. The rocket propulsion section extends the text’s coverage so that both Aerospace and Aeronautical topics can be studied and compared. Numerous updates have been made to reflect the latest advances in turbine engines, fuels, and combustion. The text is now divided into three parts, the first two devoted to air breathing engines, and the third covering non-air breathing or rocket engines.
Download or read book Technical Abstract Bulletin written by and published by . This book was released on with total page 760 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Future of Military Engines written by Andrew P. Hunter and published by Rowman & Littlefield. This book was released on 2021-10-08 with total page 83 pages. Available in PDF, EPUB and Kindle. Book excerpt: CSIS's The Future of Military Engines looks at the state of the U.S. military engine industrial base and the choices confronting policymakers at the Department of Defense (DoD). The military engine industrial base is closely tied to the industrial base for commercial engines. U.S. engine providers use many of the same facilities and largely the same supply chain for military and commercial engines. The ability to leverage commercial supply chains is critical because supply chain quality underlies the performance advantage of U.S. military engines, both for individual aircraft and military aircraft fleets. International competitors such as Russia and China are seeking to overtake the U.S. in engines. However, the current U.S. advantage is sustainable if it is treated as a national priority. Many military aircraft, especially fighters, require engines with important differences from commercial aircraft. They fly different flight profiles and perform different jobs. These differences mean that while DoD can leverage the commercial engine industrial base, it must also make investments to sustain the industrial base’s unique military components. In the next few years, DoD investment in military engines is projected to decrease significantly, particularly for R&D. This presents a challenge as military-unique engineering skills are highly perishable. Four major policy choices confront DoD as it formulates its investment approach to military engines going forward: 1) Priority, 2) Resources, 3) Business Model, and 4) Competition. The DoD is at an inflection point for engine investment, and the time for choosing on these four key policy questions will come in the next few years.
Download or read book Technical Translations written by and published by . This book was released on 1966 with total page 782 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Espionage Past Present and Future written by Wesley K. Wark and published by Routledge. This book was released on 2012-12-06 with total page 174 pages. Available in PDF, EPUB and Kindle. Book excerpt: Highlights of the volume include pioneering essays on the methodology of intelligence studies by Michael Fry and Miles Hochstein, and the future perils of the surveillance state by James Der Derian. Two leading authorities on the history of Soviet/Russian intelligence, Christopher Andrew and Oleg Gordievsky, contribute essays on the final days of the KGB. Also, the mythology surrounding the life of Second World War intelligence chief, Sir William Stephenson, The Man Called Intrepid', is penetrated in a persuasive revisionist account by Timothy Naftali. The collection is rounded off by a series of essays devoted to unearthing the history of the Canadian intelligence service.
Download or read book Production Test Facilities for Turbojet and Turbofan Engines 1975 to 1995 written by David Laurence Bailey and published by . This book was released on 1972 with total page 83 pages. Available in PDF, EPUB and Kindle. Book excerpt: A review is made of test cell design options in order to identify characteristics of jet engine test facilities to be constructed in the 1970's and designed to be operable for a minimum of twenty years. The necessity of providing replacements for many current facilities is documented, and the factors which will ensure future production capability and economic feasibility are detailed. Present turbine engines are reviewed and projections of future engines and aircraft are made. A confidential supplement is available for qualified recipients. (Author).
Download or read book Government wide Index to Federal Research Development Reports written by and published by . This book was released on 1966-10-10 with total page 1016 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Progress on NASA Research Relating to Noise Alleviation of Large Subsonic Jet Aircraft written by United States. National Aeronautics and Space Administration and published by . This book was released on 1968 with total page 698 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Noise Its Effect on Man and Machine written by United States. Congress. House. Committee on Science and Astronautics and published by . This book was released on 1960 with total page 276 pages. Available in PDF, EPUB and Kindle. Book excerpt: Committee Serial No. 13. Reviews research on control of aircraft noise.
Download or read book Transportation Noise and Noise from Equipment Powered by Internal Combustion Engines written by Wyle Laboratories and published by . This book was released on 1972 with total page 436 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Hearings written by United States. Congress. House. Committee on Science and Astronautics and published by . This book was released on 1972 with total page 1448 pages. Available in PDF, EPUB and Kindle. Book excerpt:
