• Forum
• SITREP
• Military
• WMD
• Intelligence
• Homeland Security

• Space

• Introduction
• Systems
• Facilities
• Agencies
• Countries
• Hot Documents
• News
• Reports
• Policy
• Budget
• Congress
• Links

• Public Eye

National Mission Model

Since program inception in 1995, the total number of launches contained in the Air Force's Evolved Expendable Launch Vehicle (EELV) mission model has fluctuated from 171 to 194 to 204 to 169 to 183. The types of launch vehicles--medium-lift, intermediate-lift, and heavy-lift--and the timing of launches have also varied.

• Evolved Expendable Launch Vehicle: DOD Guidance Needed to Protect Government's Interest. NSIAD-98-151. 23 pp. plus 3 appendices (6 pp.) June 11, 1998.

                       Air Force EELV Mission Model and 
                                GAO Adjusted Model
                                                                           GAO
Type of Launch  Satellite       Dec.  Sept. July     Mar. 9,     Mar.24,   adjusted
vehicle         system          1995  1996  1997        1998        1998   model
--------------  --------------  ----  ----  ----  ----------  ----------  ------
Medium          Space test         7     6     6           5           5       5
                 satellites
                GPS               55    53    53          40          56      56
                DMSP               4     4     5           4           4       4
                NPOESS             9     9     8           6           5       5
                NASA               6     7     3           2           2       0
                 satellites
                NASA-              9     9     5           5           5       0
                 Discovery
                SBIRS-LEO          0    28     0           9           9       9
================================================================================
Subtotals                         90   116    80          71          86      79
Intermediate    DSCS               2     2     2           2           2       2
                SBIRS-GEO         16    15    14          10          10      10
                SBIRS-LEO          0     0    29           0           0       0
                Advanced          21    21    20          21          20      20
                 MILSATCOM
                Mission A/B/E     25    25    50          56          56      44
================================================================================
Subtotals                         64    63   115          89          88      76
Heavy           Mission C/D       17    15     8           8           8       8
                DSP                0     0     1           1           1       1
================================================================================
Subtotals                         17    15     9           9           9       9
================================================================================
Totals                           171   194   204         169         183     164
--------------------------------------------------------------------------------
LEGEND
DMSP = Defense Meteorological Satellite Program
DSCS = Defense Satellite Communications System
DSP = Defense Support Program
GPS = Global Positioning System
MILSATCOM = Military Satellite Communications
Mission A/B/C/D/E = Classified programs
NPOESS = National Polar-orbiting Operational Environmental Satellite
System
SBIRS-GEO = Space-Based Infrared System-Geosynchronous Earth Orbit
SBIRS-LEO = Space-Based Infrared System-Low Earth Orbit

[SOURCE EELV RFP ANNEX C EELV PROGRAM SYSTEM PERFORMANCE DOCUMENT (SPD)]

EELV Transition Schedule