Page 15

TABLE 2-1 Accelerating Obsolescence of Military/Aerospace Devices

Year

Number of Parts in TACTech Database

Number of Parts Discontinued

Percentage of Parts Discontinued

1986

22,341

1,675

7.5

1988

30,811

2,975

9.6

1990

55,326

4,371

7.9

1992

72,089

7,593

10.9

1994

58,295

9,659

16.5

1996

45,873

6,210

13.5

Source: TACTech, 1997.


were discontinued almost doubled, from 7.5 percent of the total to 13.5 percent of the total. There is every reason to believe that these percentages will increase in the future. Although the total number of unique part styles is decreasing as levels of circuit integration increase, the percentage of discontinued parts is not expected to decrease at the same rate.

A significant portion of funds allocated to each weapon system is being used to contend with the DMS/ OP problem. Estimates of the cumulative amount of money required to address DMS/OP for the F-15, F-22, and U-2 (including development, production, and installation) are close to $1 billion each (U.S. Air Force, 2000a). It is important to stress that these funds are required simply to maintain current functions and do not buy any additional capability.

RISING SUPPORT COSTS

A DoD report, Product Support for the 21st Century: A Year Later (September 2000) notes that DoD spends about $62 billion annually to support and maintain its equipment (DUSD[AT&L], 2000). In fiscal year 1999 (FY99), the Air Force spent about $3 billion for depot-level repairs of its aircraft. Approximately one-third of this, or $1 billion, was spent on maintaining and supporting avionics systems (operations and maintenance [O&M] funds), as shown in Figure 2-1 . An additional

Image: jpg
~ enlarge ~
FIGURE 2-1 Cost of avionics in depot-level aircraft maintenance for FY99. Source: U.S. Air Force, 2000a.



The National Academies | 500 Fifth St. N.W. | Washington, D.C. 20001
Copyright © National Academy of Sciences. All rights reserved.
Terms of Use and Privacy Statement