TIME-PHASED LIFE-CYCLE
                                    O&S COSTS
                          ALTERNATIVE:_______________ a

DATE:
WEAPON SYSTEM:
CONSTANT FY___$ (000)

                           DEPLOYMENT    CUMULATIVE     PHASE-OUT     TOTAL       ANNUALIZED
              FY___        PERIOD        STEADY-STATE   PERIOD        LIFE CYCLE  STEADY-STATE
              & PRIOR      FY___ FY___b  FY___TO FY___  FY___ FY___b  O&S          RECURRING

SYSTEMS DEPLOYED (CUM)/YR
OPTEMPO HRS/SYSTEM/YR c


1.0     MISSION PERSONNEL
        1.1     OPERATIONS
        1.2     MAINTENANCE
        1.3     OTHER MISSION PERSONNEL

2.0     UNIT-LEVEL CONSUMPTION
        2.1     POL/ENERGY CONSUMPTION
        2.2     CONSUMABLE MATERIAL/REPAIR PARTS
        2.3     DEPOT-LEVEL REPARABLES 
        2.4     TRAINING MUNITIONS/EXPENDABLE STORES
        2.5     OTHER

3.0     INTERMEDIATE MAINTENANCE (EXTERNAL TO UNIT)
        3.1     MAINTENANCE
        3.2     CONSUMABLE MATERIAL/REPAIR PARTS
        3.3     OTHER

4.0     DEPOT MAINTENANCE
        4.1     OVERHAUL/REWORK 
        4.2     OTHER

5.0     CONTRACTOR SUPPORT
        5.1     INTERIM CONTRACTOR SUPPORT
        5.2     CONTRACTOR LOGISTICS SUPPORT
        5.3     OTHER

6.0     SUSTAINING SUPPORT
        6.1     SUPPORT EQUIPMENT REPLACEMENT
        6.2     MODIFICATION KIT PROCUREMENT/INSTALLATION
        6.3     OTHER RECURRING INVESTMENT
        6.4     SUSTAINING ENGINEERING SUPPORT
        6.5     SOFTWARE MAINTENANCE SUPPORT
        6.6     SIMULATOR OPERATIONS
        6.7     OTHER

7.0     INDIRECT SUPPORT
        7.1     PERSONNEL SUPPORT
        7.2     INSTALLATION SUPPORT

                GRAND TOTAL








NOTES: REFLECTS GENERIC COST ELEMENT STRUCTURE. SUBSTITUTE CES APPROPRIATE FOR SYSTEM BEING ESTIMATED.

DETAILED DOCUMENTATION (BY CES NUMBER AND YEAR) SHOULD SUPPORT THE DERIVATION OF THESE ESTIMATES.

a. IDENTIFY TITLE OF PROPOSED ALTERNATIVE (OR OF OTHER ALTERNATIVES, WHERE APPLICABLE). A SEPARATE FORMAT MUST BE COMPLETED FOR EACH ALTERNATIVE.

b. INSERT ADDITIONAL FY COLUMNS FOR DEPLOYMENT AND PHASE-OUT PERIODS AS REQUIRED.

c. OPTEMPO MAY BE EXPRESSED IN TERMS OF OPERATING HOURS, FLYING HOURS, MILES DRIVEN, ETC.

Exhibit 6-4. TIME-PHASED LIFE-CYCLE O&S COST