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Assessment of Wingtip Modifications to Increase the Fuel Efficiency of Air Force Aircraft
Appendixes
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Assessment of Wingtip Modifications to Increase the Fuel Efficiency of Air Force Aircraft
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Assessment of Wingtip Modifications to Increase the Fuel Efficiency of Air Force Aircraft
Appendix A
Data Used in Net Present Value Analyses
The data values used in the net present value analyses discussed in Chapter 4 are shown in Tables A-1 and A-2.
TABLE A-1 KC-10 Data
Average individual aircraft flight hours per year
783
Average fuel consumption of an individual aircraft (lb/hr)
17,600
Weight of fuel (lb/gal)
6.7
Number of aircraft in inventory in 2007
59
Number of aircraft retired from inventory at start of year
2028
6
2029
6
2030
6
2031
6
2032
6
2033
6
2034
6
2035
6
2036
6
2037
5
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Assessment of Wingtip Modifications to Increase the Fuel Efficiency of Air Force Aircraft
TABLE A-2 KC-135R/T Data
Average individual aircraft flight hours per year (hr/yr)
425
Average fuel consumption of an individual aircraft (lb/hr)
10,224.2
Weight of fuel (lb/gal)
6.7
Number of aircraft in inventory in 2007
417
Number of aircraft retired from inventory at start of year
2018
16
2019
17
2020
17
2021
16
2022
17
2023
17
2024
16
2025
17
2026
17
2027
16
2028
17
2029
17
2030
16
2031
17
2032
17
2033
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2034
17
2035
17
2036
16
2037
17
2038
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2039
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2040
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2041
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2042
17
Representative terms from entire chapter:
force engine