New Processes for the Estimation of Military Airframe Costs
Jan 1, 2001
The Effects of Advanced Materials and Manufacturing Processes
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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.
Airframe Cost Information
Airframe Cost-Estimating Methodology
Applying the Results
Aircraft Weight Definitions
Aircraft Work Breakdown Structure (WBS) Levels (From Military Specification 881)
Airframe Development Cost-Estimating Relationships
Subjects of the Three RAND Studies on Industry Initiatives Designed to Reduce the Cost of Producing Military Aircraft
The research described in this report was performed under the auspices of RAND's Project AIR FORCE.
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