Read Books Online and Download eBooks, EPub, PDF, Mobi, Kindle, Text Full Free.
A Service Life Extension Slep Approach To Operating Aging Aircraft Beyond Their Original Design Lives
Download A Service Life Extension Slep Approach To Operating Aging Aircraft Beyond Their Original Design Lives full books in PDF, epub, and Kindle. Read online A Service Life Extension Slep Approach To Operating Aging Aircraft Beyond Their Original Design Lives ebook anywhere anytime directly on your device. Fast Download speed and no annoying ads. We cannot guarantee that every ebooks is available!
Book Synopsis A service life extension (SLEP) approach to operating aging aircraft beyond their original design lives by : Alan Carter Pentz
Download or read book A service life extension (SLEP) approach to operating aging aircraft beyond their original design lives written by Alan Carter Pentz and published by . This book was released on 2015 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Aging Aircraft Subsystems. Equipment Life Extension Within the Tornado Program by : G. Blech
Download or read book Aging Aircraft Subsystems. Equipment Life Extension Within the Tornado Program written by G. Blech and published by . This book was released on 2000 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt: Restrictions on nations military budgets require that Air Forces will operate high sophisticated weapon systems such as military aircraft far beyond their original designed life. Modernization, life extension and aging aircraft programs are defined to ensure that future mission requirements can be fulfilled and the airworthiness of the aircraft is maintained until the out of service date. Whilst the operational life is increasing, various aging effects take place and impair the structural and functional integrity of high aged aircraft subsystems even before their design life are reached. An integrated process was defined between customer and industry with the aim of extending the operational life of the aircraft under limited budgetary conditions and tight timescales. Under the scope of this task, aging of equipment and components the impact of aging problems on structural and functional integrity, the impact of customer extended operational requirements on equipment limitations and the consequences of age related failures on flight safety have been assessed.
Book Synopsis A Survey of Aircraft Structural-life Management Programs in the U.S. Navy, the Canadian Forces, and the U.S. Air Force by : Yool Kim
Download or read book A Survey of Aircraft Structural-life Management Programs in the U.S. Navy, the Canadian Forces, and the U.S. Air Force written by Yool Kim and published by Rand Corporation. This book was released on 2006 with total page 127 pages. Available in PDF, EPUB and Kindle. Book excerpt: The average age of aircraft in the U.S. Air Force is 22, making aging an increasing concern. The Air Force program responsible for maintaining the structural safety of its aircraft faces challenges, however, such as budgetary pressures, regulations, and communication issues. The authors sought insights on these issues by comparing similar programs in other services. Their observations suggest the value of clear policies, independent assessments, standard metrics, and open and clear communication.
Book Synopsis Aging of U.S. Air Force Aircraft by : National Research Council
Download or read book Aging of U.S. Air Force Aircraft written by National Research Council and published by National Academies Press. This book was released on 1997-09-30 with total page 124 pages. Available in PDF, EPUB and Kindle. Book excerpt: Many of the aircraft that form the backbone of the U.S. Air Force operational fleet are 25 years old or older. A few of these will be replaced with new aircraft, but many are expected to remain in service an additional 25 years or more. This book provides a strategy to address the technical needs and priorities associated with the Air Force's aging airframe structures. It includes a detailed summary of the structural status of the aging force, identification of key technical issues, recommendations for near-term engineering and management actions, and prioritized near-term and long-term research recommendations.
Book Synopsis Service Life Investigation for Aging Aircraft by :
Download or read book Service Life Investigation for Aging Aircraft written by and published by . This book was released on 1997 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report results from a contract tasking TsAGI as follows: The contractor will report on investigation into structural issues effecting aging aircraft. One of the most important problems in aviation is the one of ensuring safe operation of aging aircraft. Up to date many Russian aircraft types have worked out their design service lives. It is impossible to replace all of old aircraft types by newer ones in the nearest future, so it seems obligatory to prolong service lives and durability of aging aircraft beyond the design goals. This requires testing the long-operated aircraft for fatigue resistance, ensuring damage tolerance of the structures with widespread fatigue damage (WFD), studying the degradation of crack resistance and fatigue strength after long-term operation, and ensuring safe operation of corrosion-damaged structures. This paper outlines the experience of dealing with the above problems in Russia.
Book Synopsis Common Understanding of Life Management Techniques for Ageing Air Vehicles by : Thomas Vogelfaenger
Download or read book Common Understanding of Life Management Techniques for Ageing Air Vehicles written by Thomas Vogelfaenger and published by . This book was released on 2003 with total page 15 pages. Available in PDF, EPUB and Kindle. Book excerpt: Aging aircraft are a growing problem in both military and commercial aviation. With the economic constraints of keeping current military and civilian aircraft in service, and the growing demand for air travel worldwide, the problems of aging aircraft will continue to worsen. The service life extension of equipment or a system over the initial design period is indeed a question of safety however, as the subsequent explanations show, this a question of efficiency and economy. In a general sense, aging aircraft are characterized by the deterioration of structural strength properties and the related problems and the increasing maintenance costs. Some of these problems are time dependent, such as corrosion, which also depends heavily on the usage environment. Others are usage dependent, such as in fatigue cracking, which is naturally caused by the mechanical loads that are introduced into the structure and also in electronic devices. Often the damage state of an aircraft is the result of both time (calendar years) and usage (operating hours). To maintain structural integrity, steps must be taken toward the prevention, detection, repair and prediction of the initiation and growth of aircraft structural damage. What are now the valuation criteria for a decision for or against the further extension of the service life of an aging aircraft? The paper concludes with a view of future technologies, which could contribute to an expense optimized useful life extension.
Book Synopsis Aging Aircraft Fleets: Structural and Other Subsystem Aspects (le Vieillissement Des Flottes D'avions Militaires by :
Download or read book Aging Aircraft Fleets: Structural and Other Subsystem Aspects (le Vieillissement Des Flottes D'avions Militaires written by and published by . This book was released on 2001 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Aging aircraft concerns have dramatically escalated in the military community during the past decade. The percentage of aircraft, operated beyond their original design life both in terms of flight hours and/or calendar years is steadily increasing. Some models, which have already been in service for more than 30 years, will need to be retained for another two decades or longer, often serving in roles and in theaters very different from what was envisioned when they were originally designed. Aging aircraft has several connotations. Among them: (a) technological obsolescence, (b) the need for system upgrading, (c) changing mission requirements, (d) the specter of runaway maintenance costs, (e) concern about safety, (f) impairment of fleet readiness and (g) possible unavailability of home depot facilities. However, if there is one thread that runs through the above list, it is the adverse impact on sustainment of the fleet. There are other considerations when dealing with the Aging aircraft issue; for example, availability of spare parts, processes and tooling may no longer be available, logistic procedures may have changed and suppliers may be out of the business. Budgetary limitations and higher fleet utilization will increase the demand to cope with aging aspects for the structure and major subsystems like engines and avionics. Awareness in the user community about typical challenges and technical solutions can ameliorate some of the concerns. New technologies are now available for dealing with many of the aging aircraft concerns. They relate to inspection, repair and corrosion-resistant materials, structural modeling and more sophisticated maintenance scheduling.
Book Synopsis Aging Aircraft: Implications for Programmed Depot Maintenance and Engine-Support Costs by :
Download or read book Aging Aircraft: Implications for Programmed Depot Maintenance and Engine-Support Costs written by and published by . This book was released on 1999 with total page 11 pages. Available in PDF, EPUB and Kindle. Book excerpt: RAND Project AIR FORCE'S long term interest in the topic of aging aircraft was rekindled in 1994, when we participated in the Air Force Scientific Advisory Board Summer Study that raised technical concerns about the viability of retaining certain aircraft past their original design lives. In 1997, the National Research Council's report on aging USAF aircraft reinforced those concerns. At that time, we initiated a modest Air Force sponsored research effort focused on emerging technical challenges for aircraft maintenance activities. Last summer we built on that technical background to examine the potential effects that aging aircraft would have on the costs of programmed depot maintenance (PDM) and engine support. The results of that work are documented in the annotated briefing that has been made available to the subcommittee. This year, we have broadened our review to cover other support and modernization activities where aircraft age may affect costs and readiness.
Book Synopsis Flying beyond the stall by : Douglas A. Joyce
Download or read book Flying beyond the stall written by Douglas A. Joyce and published by . This book was released on 2014 with total page 409 pages. Available in PDF, EPUB and Kindle. Book excerpt: The X-31 Enhanced Fighter Maneuverability Demonstrator was unique among experimental aircraft. A joint effort of the United States and Germany, the X-31 was the only X-plane to be designed, manufactured, and flight tested as an international collaboration. It was also the only X-plane to support two separate test programs conducted years apart, one administered largely by NASA and the other by the U.S. Navy, as well as the first X-plane ever to perform at the Paris Air Show. Flying Beyond the Stall begins by describing the government agencies and private-sector industries involved in the X-31 program, the genesis of the supermaneuverability concept and its initial design breakthroughs, design and fabrication of two test airframes, preparation for the X-31's first flight, and the first flights of Ship #1 and Ship #2. Subsequent chapters discuss envelope expansion, handling qualities (especially at high angles of attack), and flight with vectored thrust. The book then turns to the program's move to NASA's Dryden Flight Research Center and actual flight test data. Additional tasking, such as helmet-mounted display evaluations, handling quality studies, aerodynamic parameter estimation, and a "tailless" study are also discussed.The book describes how, in the aftermath of a disastrous accident with Ship #1 in 1995, Ship #2 was prepared for its outstanding participation in the Paris Air Show. The aircraft was then shipped back to Edwards AFB and put into storage until the late 1990s, when it was refurbished for participation in the U. S. Navy's VECTOR program. The book ends with a comprehensive discussion of lessons learned and includes an Appendix containing detailed information.
Book Synopsis The Naval Aviation Maintenance Program (NAMP).: Maintenance data systems by : United States. Office of the Chief of Naval Operations
Download or read book The Naval Aviation Maintenance Program (NAMP).: Maintenance data systems written by United States. Office of the Chief of Naval Operations and published by . This book was released on 1990 with total page 828 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Aging Aircraft: Implications for Programmed Depot Maintenance and Engine-Support Costs by : Raymond Pyles
Download or read book Aging Aircraft: Implications for Programmed Depot Maintenance and Engine-Support Costs written by Raymond Pyles and published by . This book was released on 1999 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: RAND Project AIR FORCE'S long term interest in the topic of aging aircraft was rekindled in 1994, when we participated in the Air Force Scientific Advisory Board Summer Study that raised technical concerns about the viability of retaining certain aircraft past their original design lives. In 1997, the National Research Council's report on aging USAF aircraft reinforced those concerns. At that time, we initiated a modest Air Force sponsored research effort focused on emerging technical challenges for aircraft maintenance activities. Last summer we built on that technical background to examine the potential effects that aging aircraft would have on the costs of programmed depot maintenance (PDM) and engine support. The results of that work are documented in the annotated briefing that has been made available to the subcommittee. This year, we have broadened our review to cover other support and modernization activities where aircraft age may affect costs and readiness.
Download or read book Aging Aircraft written by Raymond Pyles and published by Rand Corporation. This book was released on 2003 with total page 193 pages. Available in PDF, EPUB and Kindle. Book excerpt: To help improve the Air Force's ability to foresee the implications for safety, aircraft availability, and cost of its plans to retain aircraft fleets for service lives that may be as long as 80 years, and to identify actions that will mitigate or avoid some of the more severe consequences, this study measures how the USAF aircraft fleets' ages relate to maintenance and modification workloads and material consumption.
Book Synopsis Columbia Accident Investigation Board Report by : United States. Columbia Accident Investigation Board
Download or read book Columbia Accident Investigation Board Report written by United States. Columbia Accident Investigation Board and published by . This book was released on 2003 with total page 584 pages. Available in PDF, EPUB and Kindle. Book excerpt: Vols. 2-6 of the CAIB's Final Report contain appendices that provide the supporting documentation for the main text of the Final Report contained in Vol. 1, which was released on Aug. 26, 2003. These appendix materials were working documents. They contain a number of conclusions and proposed recommendations, several of which were adopted by the CAIB in Vol. 1. The other conclusions and proposed recommendations drawn in Vols. 2-6 do not necessarily reflect the views of the CAIB but are included for the record. When there is conflict, Vol. 1 takes precedence. It alone is the CAIB's official statement.
Book Synopsis Investigating Optimal Replacement of Aging Air Force Systems by : Edward Geoffrey Keating
Download or read book Investigating Optimal Replacement of Aging Air Force Systems written by Edward Geoffrey Keating and published by Minnesota Historical Society. This book was released on 2003 with total page 58 pages. Available in PDF, EPUB and Kindle. Book excerpt: As part of a continuing project on aging aircraft and the replacement-or-repair decision, the authors develop a parsimonious model of the decision and apply it to the U.S. Air Force's C-21A transport and KC-135 tanker aircraft. They find that, for the C-21A, it probably would be appropriate to undertake a 20,000 flight hour system and component replacement schedule-prescribed renovation in the 2012 timeframe, but the aircraft should be retired around 2020. For the KC-135 tanker, it would be optimal to replace the KC-135 before the end of the decade
Book Synopsis The Maintenance Costs of Aging Aircraft: Insights from Commercial Aviation by :
Download or read book The Maintenance Costs of Aging Aircraft: Insights from Commercial Aviation written by and published by . This book was released on 2006 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: This monograph examines "aging effects"--I.e., how commercial aircraft maintenance costs change as aircraft grow older. Although commercial aircraft clearly differ from military aircraft, commercial aviation aging-effect estimates might help the Air Force to project how its maintenance costs will change over time.
Book Synopsis Columbia Accident Investigation Board, Report Volume 2, October 2003, * (NOTE: DISTRIBUTION LIMITED TO REGIONAL LIBRARIES ONLY). by :
Download or read book Columbia Accident Investigation Board, Report Volume 2, October 2003, * (NOTE: DISTRIBUTION LIMITED TO REGIONAL LIBRARIES ONLY). written by and published by . This book was released on 2004 with total page 586 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis F-4C/D Life Extension Program by : Robert L. Schneider
Download or read book F-4C/D Life Extension Program written by Robert L. Schneider and published by . This book was released on 1982 with total page 119 pages. Available in PDF, EPUB and Kindle. Book excerpt: The F-4 airframe was designed over 20 years ago for a service life of 4000 flight hours projected to be sufficient to complete the era of its usefulness in the inventory in both the USN and the USAF. However, the F-4 aircraft was slated to continue service well beyond the time when it was to have been replaced. Some 4000 F-4 aircraft are currently retained in service by the USN, USAF, and allied nations. With fatigue problems occurring in the fleet and the need for the aircraft throughout the 1980's time period, a structural integrity program was initiated to extend the life of the F-4 aircraft from 4000 hours to 8000 hours. The most comprehensive airframe fatigue test program ever conducted by the Air Force, sponsored by the Aeronautical Systems Division and the Ogden Air Logistic Center, was initiated in January 1976 by the Structures Test Branch Structures and Dynamics Division, of the Flight Dynamics Laboratory. This test program was successfully completed in April 1981 after the F-4 airframe has sustained 24,000 simulated flight hours. Actual testing and inspection accounted for only 21 months of this 63 month period, most of which was spent awaiting the design, fabrication and installation of structural modifications required to extend the service life of the F-4 aircraft. A major achievement for the test program was the physical proof that the modified structure did indeed provide the required life extension.
