Author: L. Keith Barker
Publisher:
ISBN:
Category : Airplanes
Languages : en
Pages : 24
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Book Description
Two NASA goals are to enhance airport safety and to improve capacity in all weather conditions. This paper contributes to these goals by examining speed guidance profiles to aid a pilot in decelerating along the runway to an exit. A speed profile essentially tells the pilot what the airplane's speed should be as a function of where the airplane is on the runway. While it is important to get off the runway as soon as possible (when striving to minimize runway occupancy time), the deceleration along a speed profile should be constrained by passenger comfort. Several speed profiles are examined with respect to their maximum decelerations and times to reach exit speed. One profile varies speed linearly with distance; another has constant deceleration; and two related nonlinear profiles delay maximum deceleration (braking) to reduce time spent on the runway.
Author: Richard M. Hueschen
Publisher:
ISBN:
Category : Instrument landing systems
Languages : en
Pages : 26
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Author: National Aeronautics and Space Administration (NASA)
Publisher: Createspace Independent Publishing Platform
ISBN: 9781721195831
Category :
Languages : en
Pages : 36
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Book Description
Two NASA goals are to enhance airport safety and to improve capacity in all weather conditions. This paper contributes to these goals by examining speed guidance profiles to aid a pilot in decelerating along the runway to an exit. A speed profile essentially tells the pilot what the airplane's speed should be as a function of where the airplane is on the runway. While it is important to get off the runway as soon as possible (when striving to minimize runway occupancy time), the deceleration along a speed profile should be constrained by passenger comfort. Several speed profiles are examined with respect to their maximum decelerations and times to reach exit speed. One profile varies speed linearly with distance; another has constant deceleration; and two related nonlinear profiles delay maximum deceleration (braking) to reduce time spent on the runway. Barker, L. Keith and Hankins, Walter W., III and Hueschen, Richard M. Langley Research Center NASA/TM-1999-209829, NAS 1.15:209829, L-17928
Author:
Publisher:
ISBN:
Category : Astronautics
Languages : en
Pages : 182
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Book Description
Author: Milan Janić
Publisher: CRC Press
ISBN: 1000227391
Category : Transportation
Languages : en
Pages : 391
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Book Description
This book presents a comprehensive analysis and modelling of demand, capacity, quality of services, economics, and sustainability of the air transport system and its main components - - airports, airlines, and ATC/ATM (Air Traffic Control/Management). Airports consist of the airside and landside area characterized by their capacities for handling demand such as aircraft, air passengers, and air freight/cargo shipments. Regarding spatial configuration, airlines generally operate hub-and-spoke (conventional or legacy airlines) and point-to-point (LCCs - Low Cost Carriers) air route networks. Their fleets consisting of different aircraft types provide transport capacity for serving demand including air passengers and freight/cargo shipments. The ATC/ATM includes the controlled airspace, traffic management and control facilities and equipment on the ground, space, and on board aircraft, and the ATC Controllers). They all provide capacity to handle demand consisting of the flights between origin and destination airports carried out by airline aircraft. The outcome from the interrelationships between demand and capacity at these components materializes as the quality of services. At airports and airlines this is generally expressed by congestion and delays of aircraft, air passengers, and freight/cargo shipments. At ATC/ATM, this is expressed by delays, horizontal and vertical in-efficiency, and safety of flights. Economics of each component relate to its revenues, costs, and profits from handling demand, i.e., providing services of given quality. The sustainability of air transport system has become increasingly important issue for many internal and external actors/stakeholders involved to deal with. This has implied increasing the system’s overall social-economic effects/benefits while reducing or maintaining constant impacts/costs on the environment and society at both global and regional/local scale under conditions of continuous medium- to long term growth.
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 130
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Book Description
Author: Milan Janic
Publisher: Routledge
ISBN: 1351881388
Category : Transportation
Languages : en
Pages : 328
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Book Description
This book presents, for the first time, a comprehensive analysis and assessment of the sustainability of the contemporary civil air transport system, examining its three main components: airports, air traffic control, and airlines. It offers an in-depth examination and quantitative insight into the system's current and prospective structure and operations, as well as the related effects and impacts. The sustainability of the air transport system is considered along a global trajectory of growing effects and diminishing and/or stagnating impacts on society and environment under conditions of continuous growth. In doing so, the author examines the situations of users of the system (passengers and freight shippers), air transport operators (airports, air traffic control and airlines), aerospace manufacturers, local and national communities, policymakers and the general public. The book possesses the unique and distinctive feature of providing an analysis and assessment of the air transport system's sustainability through elaboration of its technical/technological, operational, economic, social, environmental and institutional performances and their causality. It is written for advanced graduate and post-graduate students, researchers, planners, stakeholders, and policymakers dealing with the various sustainability issues of the contemporary air transport system.
Author:
Publisher:
ISBN:
Category : Government publications
Languages : en
Pages : 1102
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Book Description
Author: Edward J. Johnson (Jr.)
Publisher:
ISBN:
Category :
Languages : en
Pages : 58
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Book Description
Author:
Publisher:
ISBN:
Category : Avionics
Languages : en
Pages : 720
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Book Description
