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Author: Jeffrey L. Ethell
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 126
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Author: Jeffrey L. Ethell
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 126
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Author: United States. Federal Aviation Administration
Publisher:
ISBN:
Category : Airplanes
Languages : en
Pages : 12
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Author: United States. Congress. Senate. Committee on Aeronautical and Space Sciences
Publisher:
ISBN:
Category : Airplanes
Languages : en
Pages : 360
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Author: United States. Congress. House. Committee on Transportation and Infrastructure. Subcommittee on Aviation
Publisher:
ISBN:
Category : Transportation
Languages : en
Pages : 138
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Author: National Academies of Sciences, Engineering, and Medicine
Publisher: National Academies Press
ISBN: 0309440998
Category : Technology & Engineering
Languages : en
Pages : 123
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Book Description
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.
Author: National Research Council
Publisher: National Academies Press
ISBN: 0309104971
Category : Technology & Engineering
Languages : en
Pages : 77
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The high cost of aviation fuel has resulted in increased attention by Congress and the Air Force on improving military aircraft fuel efficiency. One action considered is modification of the aircraft's wingtip by installing, for example, winglets to reduce drag. While common on commercial aircraft, such modifications have been less so on military aircraft. In an attempt to encourage greater Air Force use in this area, Congress, in H. Rept. 109-452, directed the Air Force to provide a report examining the feasibility of modifying its aircraft with winglets. To assist in this effort, the Air Force asked the NRC to evaluate its aircraft inventory and identify those aircraft that may be good candidates for winglet modifications. This reportâ€"which considers other wingtip modifications in addition to wingletsâ€"presents a review of wingtip modifications; an examination of previous analyses and experience with such modifications; and an assessment of wingtip modifications for various Air Force aircraft and potential investment strategies.
Author:
Publisher:
ISBN:
Category : Energy conservation
Languages : en
Pages : 200
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Author: United States. Congress. Senate. Committee on Aeronautical and Space Sciences
Publisher:
ISBN:
Category : Airplanes
Languages : en
Pages : 32
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Author: International Air Transport Association
Publisher:
ISBN: 9789292291464
Category : Airplanes
Languages : en
Pages : 148
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Author:
Publisher:
ISBN:
Category : Aircraft industry
Languages : en
Pages : 8
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