Aging Aircraft

Author: Raymond Pyles
Publisher: Minnesota Historical Society
ISBN: 9780833033499
Format: PDF, Kindle
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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.

Valuing Programmed Depot Maintenance Speed

Author: Edward Geoffrey Keating
Publisher: Rand Corporation
ISBN: 0833039687
Format: PDF, ePub, Docs
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This report introduces a revealed preference methodology to estimate the value to the United States Air Force of expediting F-15 fighter jet programmed depot maintenance (PDM). The Air Force has chosen to pay for intermittent PDM on F-15s, so F-15s must have enough value after PDM visits to justify PDM costs. Computations suggest expediting F-15 PDM by a month would be worth at least $75,000, but likely considerably more for younger aircraft.

The Maintenance Costs of Aging Aircraft

Author: Matthew C. Dixon
Publisher: Rand Corporation
ISBN: 0833039415
Format: PDF
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The U.S. Air Force is grappling with the challenge of aging fleets and when it might be optimal to replace those fleets. This monograph examines commercial aviation data with the goal of drawing inferences and lessons about aging aircraft that may be relevant to the Air Force. It focuses on "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 and how those costs might evolve for new commercially analogous aircraft not yet in its inventory. This study found that commercial-airline inflation-adjusted total aircraft maintenance costs, per flight hour, rise substantially as aircraft come off the manufacturer's warranty after a few years of operation, and then rise at about a 3.5 percent annual rate for aircraft six to 12 years old, but are nearly unchanged for aircraft 12 to 25 years old.

Military Cost Benefit Analysis

Author: Francois Melese
Publisher: Routledge
ISBN: 131753171X
Format: PDF, ePub, Mobi
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This is the first comprehensive book on Military Cost-Benefit Analysis and provides novel approaches to structuring cost-benefit and affordability analysis amidst an uncertain defense environment and cloudy fiscal prospects. Lifting the veil on military Cost-Benefit Analysis, this volume offers several new practical tools designed to guide defense investments (and divestments), combined with a selection of real-world applications. The widespread employment of Cost-Benefit Analysis offers a unique opportunity to transform legacy defense forces into efficient, effective, and accountable 21st century organizations. A synthesis of economics, statistics and decision theory, CBA is currently used in a wide range of defense applications in countries around the world: i) to shape national security strategy, ii) to set acquisition policy, and iii) to inform critical investments in people, equipment, infrastructure, services and supplies. As sovereign debt challenges squeeze national budgets, and emerging threats disrupt traditional notions of security, this volume offers valuable tools to navigate the political landscape, meet calls for fiscal accountability, and boost the effectiveness of defense investments to help guarantee future peace and stability. A valuable resource for scholars, practitioners, novices and experts, this book offers a comprehensive overview of Military Cost-Benefit Analysis and will appeal to anyone interested or involved in improving national security, and will also be of general interest to those responsible for major government programs, projects or policies.

The Costs of Aging Aircraft

Author: Matthew C. Dixon
Format: PDF, Mobi
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Aging aircraft are a primary concern to the Air Force. Understanding the impact age has on maintenance costs is critical to 3repair versus replace4 decisions. Air Force data, however, provide a limited view of the true age effect. The commercial sector keeps uniquely different data on maintenance costs and the Department of Transportation collects these data from U.S. airlines. These annual fleet data, combined with age information from the Boeing Company, provide a unique view of the cost to maintain commercial fleets. These data suggest that on average, fleet maintenance costs continue to increase as they age, but the rate of increase slows over time. Additionally, the data suggest that the type of aircraft and the airline of operation do not have a significant impact on the age effect. However, the age effect is significantly different at various periods of a fleet2s life. Boeing uses 3maturity curves,4 derived from years of manufacturing experience, to describe how maintenance costs change as aircraft age. The analysis in this dissertation provides a unique perspective of these maturity curves by utilizing alternative models, including fixed effect regression.