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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.
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.
Author:
Publisher:
ISBN:
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: Robert Jackson
Publisher: New Line Books
ISBN: 9781840136722
Category : Aircraft, Military
Languages : en
Pages : 448
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Book Description
Featuring more than 200 full-page aviation artworks, this book presents a history of military aviation from World War I to the present day.
Author:
Publisher:
ISBN:
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: Robert Jackson
Publisher: Parragon Pubishing India
ISBN: 9781407567525
Category : Aeronautics, Military
Languages : en
Pages : 392
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Book Description
Author: Michael Sharpe
Publisher: Taj Books Limited
ISBN: 9781844060849
Category : History
Languages : en
Pages : 160
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Book Description
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: Jim Winchester
Publisher:
ISBN: 9781782743194
Category : Airplanes, Military
Languages : en
Pages : 0
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Book Description
After World War II, the US Air Force, Navy and Marine Corps retained their technological superiority through the dangerous years of the Cold War. The next generation of aircraft and weapons, with the emphasis on flexibility and affordability, has proven their worth in the recent conflicts in Afghanistan, Bosnia and Iraq. This is a comprehensive gui
Author: Thomas Newdick
Publisher: Amber Books Ltd
ISBN: 1782742778
Category : History
Languages : en
Pages : 330
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Book Description
Military Aircraft features 52 of the most important military aircraft, from biplane fighters to tactical bombers, transports, multirole fighters and stealth bombers. Packed with over 200 illustrations, each entry includes a description of the model’s development and history, a profile view, key features and specifications.
Author: Stephen Harding
Publisher: Schiffer Pub Limited
ISBN: 9780764301902
Category : History
Languages : en
Pages : 264
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Book Description
This is the only comprehensive guide to the 124 aircraft and experimental flying machines used by the United States Army since 1947. The definitive reference source on its subject.
