New Processes for the Estimation of Military Airframe Costs PDF Download
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Author:
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Category : Airframes
Languages : en
Pages : 2
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Book Description
Author:
Publisher:
ISBN:
Category : Airframes
Languages : en
Pages : 2
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Book Description
Author:
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ISBN:
Category : Industrial relations
Languages : en
Pages : 22
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Author: Obaid Younossi
Publisher: Rand Corporation
ISBN: 9780833030368
Category : History
Languages : en
Pages : 141
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Book Description
In recent years, a number of attempts have been made to estimate the cost of future weapon systems toward the goal of optimizing acquisition policy. This report focuses specifically on the effects of material mix, manufacturing techniques, and geometric part complexity on the cost of military airframes. It begins by offering background information on those materials that are most critical to airframe manufacture and on the relative advantages of both traditional and evolving part fabrication techniques. It then proceeds to a quantitative analysis of the cost implications of various materials and manufacturing techniques on airframe production, drawing both from an industry survey and from analysis of industry data. The data thus derived are then integrated with those of a comprehensive historical database. The report concludes that composites, while offering a number of advantages over metals in airframe manufacture, are generally associated with higher costs across a range of categories. At the same time, it concludes that while new manufacturing technologies hold the potential to diminish airframe manufacturing costs, the increased airframe complexity of future fighter aircraft may well offset this advantage. The report recommends that cost analysts remain abreast of changes in industry practice so that they may more accurately gauge the potential effects of such changes on future airframe costs.
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Category :
Languages : en
Pages : 160
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Book Description
Good cost estimates can make important contributions to effective acquisition policy. RAND has a long history of producing cost-estimating methodologies. Two of its more recent studies are Hess and Romanoff (1987) and Resetar, Rogers, and Hess (1991). This report both updates and extends these earlier studies, focusing on the effects of material mix, manufacturing technique, and part geometric complexity on cost. We collected two types of information on these effects. First, we surveyed the military airframe industry for estimates of how aircraft production costs vary with airframe structure material mix. Second, we analyzed a large set of actual part data from recent aircraft manufacturing efforts that we collected from industry. We also estimated a set of airframe relationships (CERs) for labor hours based on MACDAR, a historical airframe database. We then integrated the effects of material mix into these estimates.
Author: Cynthia R. Cook
Publisher: Minnesota Historical Society
ISBN: 9780833030238
Category : Business & Economics
Languages : en
Pages : 182
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Book Description
During the past couple of decades, many segments of U.S. industry have benefited from introducing new manufacturing techniques that save money by increasing efficiency and reducing overhead. Would U.S. military aircraft manufacturing benefit from these techniques as well? This report examines the package of new tools and techniques known as lean production to see if it would enable aircraft manufacturers to produce new weapon systems at costs below those predicted by historical cost estimating models. The authors give a broad overview of what lean is and what it can and cannot accomplish in cutting manufacturing costs. They also detail results of industry efforts in this regard, including specific examples and averages of claimed cost savings. The authors conclude by identifying areas where companies need to push harder in lean implementation and what the Defense Department can do to encourage this.
Author: David E. Stem
Publisher: Rand Corporation
ISBN: 0833038729
Category : Political Science
Languages : en
Pages : 211
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Book Description
Systems engineering and program management (SE/PM) constitute a large portion of the acquisition cost of military aircraft and guided weapons systems. The goal of this study was the development of a set of cost-estimating relationships that can be used to estimate the SE/PM cost element for development and production of aircraft and weapons programs. The authors canvassed government and industry personnel to learn about current techniques for estimating SE/PM costs, and they collected historical data from several aircraft and weapons programs to investigate trends in SE/PM costs over time and to generate methods that cost analysts can use early in the life cycle of a program when little cost information is available. The authors also investigated the effects on SE/PM costs from acquisition reform, including the reduction in the number of military specifications and standards, the use of integrated product and process teams, and the trend toward "evolutionary acquisition." This product is part of the RAND Corporation monograph series. RAND monographs present major research findings that address the challenges facing the public and private sectors. All RAND monographs undergo rigorous peer review to ensure high standards for research quality and objectivity. Book jacket.
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Category :
Languages : en
Pages : 0
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Book Description
This report is part of a project responding to a call by the U.S. Air Force to update cost estimating methodologies for new weapons systems-in particular, fighter aircraft. The Air Force was concerned that Cost Estimating Relationships (CERs) based on older aircraft did not adequately reflect the acquisition and manufacturing environment within which a new fighter, such as the Joint Strike Fighter (JSF) would be produced. This report is one of a series, all of which address some aspect of how to incorporate the new DoD acquisition and manufacturing environments into historical cost estimating relationships or methodologies (See Younossi, Graser, and Kennedy, 2001; Lorell and Graser, 2001). Using the CER methodology for example, the cost of a future aircraft is estimated as a function of its physical or characteristics or other program variables, using a series of equations wherein the performance and program variables are inputs, and cost or labor hours are the outputs. To create these equations, actual costs (or labor hours) to produce previous aircraft are collected and used as the dependent variables in statistical regression analysis. Explanatory variables typically include such factors as cumulative production quantity, annual production rate, such aircraft characteristics as weight and speed, and others. The resulting equations are referred to as "cost estimating relationships," or CERs. Obviously, the ability of these equations to forecast future systems costs hinges on how well past performance is a predictor of the future.
Author: Obaid Younossi
Publisher: Rand Corporation
ISBN: 9780833032829
Category : Technology & Engineering
Languages : en
Pages : 153
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Book Description
As manufacturing processes and materials used in aircraft engine production change and new information on aircraft engine technology becomes available, cost-estimation techniques must be updated. The authors present a new methodology for estimating military jet engine costs, reviewing the technical parameters that drive the engine development schedule, development costs, and production costs.
Author: Luis R. Sanchez
Publisher:
ISBN:
Category :
Languages : en
Pages : 111
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Book Description
Planning Research Corporation, has conducted a series of studies to develop techniques for estimating the cost of fixed-wing aircraft. The primary objective of these studies is to develop techniques suitable for use in program planning, cost-effectiveness studies, and evaluation of contractor proposals. A further objective is to provide insight into problems of cost analysis and to suggest an analytical methodology for developing estimating relationships that will be useful to analysts in the military departments in preparing estimates of cost for new weapons system programs. (Author).
Author:
Publisher: Rand Corporation
ISBN: 083303863X
Category : History
Languages : en
Pages : 204
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Book Description
This report is one of a series from a RAND Project AIR FORCE project, "The Cost of Future Military Aircraft: Historical Cost Estimating Relationships and Cost Reduction Initiatives."
