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Military Jet Engine Acquisition Technology Basics and Cost-Estimating Methodology

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Military Jet Engine Acquisition Technology Basics and Cost-Estimating Methodology ( military-jet-engine-acquisition-technology-basics-and-cost-e )

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Engine F404GE Table 5.3—Continued Dash Development Development Number Cost Time -400 X X -400D X N/I -RM12 X X -402 N/I N/I Production Cost X N/I N/I N/I X N/I N/I N/I N/I N/I N/I X Estimating Parameters and Gathering Data 59 F414 -400 JT8D -9 JT9D -3 -7 X N/I -7Q X N/I -7R4D X N/I -59A X N/I F405RR -400 N/I N/I X N/I X X X X NOTES: Development and production cost data are not shown due to their proprietary nature; X = included; N/I = not included. Data Verification Process To verify the programmatic, performance, and cost data provided by NAVAIR, we compared that data with information from previous RAND studies and other sources.5 To validate the data further, we also used Contractor Cost Data Reports (CCDRs) from some more- recent engine development efforts.6 Comparison data for all the en- gines used in our analysis were not available; for those engines for which the data were available, performance parameters and techni- cal characteristics were the same among all of our sources. However, the differences in the development cost data among some sources were pronounced. Figure 5.3 compares the differences between the reported development cost data from each source and the develop- ______________ 5The other sources contain proprietary contractor information and are for U.S. gov- ernment use only. They were by Cote and Lilly (1985) for the Naval Air Development Center (NADC), Daley and Richey (1994) for the Naval Center for Cost Analysis (NCCA), and the Ketron Division of the Bionetics Corporation (1998) for the Naval Air Systems Command. Any proprietary information contained in those analyses are not included in this report. General Electric, the manufacturer of some of the engines used in our analysis, and the Air Force Cost Analysis Agency also provided cost data on some engine developments. 6CCDRs contain contract cost information and are required by most DoD develop- ment contracts.

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