SLIDE 4 4
CALCE Electronic Products and Systems Center University of Maryland Obsolescence/Technology Insertion
Average Annual Rate of Technology Change
Darryl Webb – Price Systems, LLC Mx versus IOC- Fighter/Attack AC y = 0.0503x + 3.5424 R2 = 0.8918 4.00 4.50 5.00 5.50 6.00 6.50 7.00 7.50 8.00 8.50 9.00 20 40 60 80 100 120 IOC-1900 Mx
Year of Initial Operational Capability (IOC) - 1900 Manufacturing Producibility (Mx)
Fighter/Attack Aircraft
M x vs I O C y = 0. 0349x + 3. 9291 R
2
= 0. 8103
- 4. 00
- 4. 50
- 5. 00
- 5. 50
- 6. 00
- 6. 50
- 7. 00
- 7. 50
- 8. 00
20 40 60 80 100 120 I O C
Year of Initial Operational Capability - 1900 Manufacturing Producibility (Mx) Military Transport Aircraft M x vs I O C y = 0. 0349x + 3. 9291 R
2
= 0. 8103
- 4. 00
- 4. 50
- 5. 00
- 5. 50
- 6. 00
- 6. 50
- 7. 00
- 7. 50
- 8. 00
20 40 60 80 100 120 I O C
Year of Initial Operational Capability - 1900 Manufacturing Producibility (Mx) Military Transport Aircraft
Manufacturing Producibility (Mx) measures recurring cost impact of materials, fabrication, assembly, and inspection
Components, subsystems and systems follow the same patterns.
CALCE Electronic Products and Systems Center University of Maryland Obsolescence/Technology Insertion
Battery Performance Example
Most component technologies historically have maintained consistent improvement rates in Performance (batteries: cycles) Efficiency (batteries; watt-hours per kilogram) Physical characteristics (batteries;: mass, density,
and volume)
Technological cycle time is consistent and driven by: Application Competition Demand Subsidiary industries (infrastructure)
1950 1960 1970 1980 1990 2000
Year of Initial Operational Capability Total cycles
1950 1960 1970 1980 1990 2000
Year of Initial Operational Capability Efficiency (Wh/kg)
1950 1960 1970 1980 1990 2000
Year of Initial Operational Capability Mass
Ni Cad Ni H2 Li Ion Ni Cad Ni H2 Li Ion Ni Cad Ni H2 Li Ion
Darryl Webb – Price Systems, LLC