Assessment of Wingtip Modifications to Increase the Fuel Efficiency of Air Force Aircraft PDF Download
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Author: National Research Council Publisher: National Academies Press ISBN: 030938382X Category : Technology & Engineering Languages : en Pages : 77
Book Description
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: National Research Council Publisher: National Academies Press ISBN: 030938382X Category : Technology & Engineering Languages : en Pages : 77
Book Description
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: Umut Ataman Publisher: Entropol ISBN: Category : Reference Languages : en Pages : 704
Book Description
In the realm of civil aviation, the sky is hardly the limit. It’s the starting line. Each day, countless professionals and enthusiasts alike engage with this dynamic sector, propelling humanity literally into new horizons. However, as we soar into these vast expanses, the necessity for a robust understanding and a shared language becomes not just beneficial, but vital. It's here that The Dictionary of Civil Aviation finds its wings, offering a solid ground of knowledge amidst the boundless skies of aviation exploration. With a reservoir of 4,681 meticulously curated entries, this dictionary stands as a testament to the colossal body of knowledge that civil aviation encompasses. It's an endeavor to foster a shared understanding, to bridge the knowledge gaps that might exist between a seasoned aviator and an aviation student, between air traffic controllers and airport managers, or between aviation policymakers and enthusiasts. The Dictionary of Civil Aviation is more than just a glossary; it’s a journey. A journey through the technicalities that ensure safety in the skies, the regulations that govern our airways, the acronyms that punctuate aviation communication, and the innovations that continue to drive this sector forward. Each term encapsulated in this dictionary is a node in the vast network that is civil aviation, offering readers a structured pathway through the complex, yet exhilarating world of flight. The objective is clear: to foster a culture of continuous learning and shared understanding within the civil aviation community. By doing so, we not only enhance the safety and efficiency of civil aviation but also honor the spirit of exploration and innovation that has always been its hallmark. As you flip through the pages of The Dictionary of Civil Aviation, you are not just encountering definitions; you are engaging with the living, evolving entity that is civil aviation. Each term is a window into a broader narrative, a narrative that you, as a reader and as a member of the civil aviation community, contribute to. We invite you to embark on this educational expedition, to delve into the nuances of civil aviation, and to emerge with a richer understanding and appreciation of the sector that makes global connectivity possible. Through this dictionary, may your curiosity take flight, and may your understanding of civil aviation soar to new heights.
Author: Henrik Hardell Publisher: Linköping University Electronic Press ISBN: 9180756441 Category : Languages : en Pages : 54
Book Description
The transportation sector, accounting for about one fifth of all greenhouse gas emissions, is facing a significant transformation in order to become more climate-friendly. In terms of air transportation, there are several important steps on the way to making flying sustainable both for the planet itself and for people directly or indirectly being exposed to its effects. In the state of the current air traffic operations, where environmentally friendly propulsion systems and fuels are not yet implemented on a large scale, enhancing the efficiency in the airspace can help to bring us closer to the environmental goals of aviation. Such solutions may include improved synchronization of arriving flights in the Terminal Maneuvering Area (TMA), in which congestion is a problem for many airports. In this thesis, we first explore and develop methodologies for assessing the environmental impact of the operations in TMA. More specifically, the goal of the assessments is to quantify the additional fuel consumption, gaseous emissions and noise that comes from horizontally and vertically inefficient arrival operations in TMA. We perform our assessments on a couple of European airports, including Stockholm-Arlanda. Secondly, we propose a Mixed Integer Programming (MIP)-based optimization model which provides for conflict-free arrival operations, where aircraft fly fuel-efficient Continuous Descent Operations (CDOs), applied to Point Merge (PM) arrival procedures, with the primary purpose to serve as a route assigner. We base our optimization on real scenarios, from actual transmitted flight data, and model realistic descent profiles considering the operational capabilities of the specific aircraft type. Additionally, the optimization model ensures the required spacing between aircraft taking off and landing in case the runway is used in a mixed mode. We evaluate our solutions by assessing numerous performance metrics, including environmental efficiency, and compare to the actual trajectories of the real operations. On two European airports implementing PM procedures, we demonstrate that our optimization model provides improved vertical performance as well as reduced time and distance flown in TMA, contributing to reduced levels of noise and fuel savings, accompanied by decreased emissions.
Author: John D. Bitzan Publisher: Emerald Group Publishing ISBN: 1785609394 Category : Transportation Languages : en Pages : 388
Book Description
An efficient air transport system is critical to countries attaining and sustaining healthy economies in an increasingly interconnected world economy. This volume 5 of Advances in Airline Economics includes literature surveys and original empirical research examining airline efficiency in the twenty first century.
Author: National Research Council Publisher: National Academies Press ISBN: 0309179599 Category : Technology & Engineering Languages : en Pages : 112
Book Description
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: National Research Council
Author: National Research Council
Author: H. H. Lambert
Author: Evan Poh Hock Lau
Author: Umut Ataman
Author: 
Author: Henrik Hardell
Author: John D. Bitzan
Author: Ronald J. Ray
Author: National Research Council
Author: