Accession Number : ADA308665

Title :   Functional Cost-Estimating Relationships for Spacecraft.

Descriptive Note : Final rept. Sep 92-Feb 96,

Corporate Author : INSTITUTE FOR DEFENSE ANALYSES ALEXANDRIA VA

Personal Author(s) : Om, Neang I. ; Roth, James K. ; Corso, Melissa L. ; Titus, Jennifer A.

PDF Url : ADA308665

Report Date : FEB 1996

Pagination or Media Count : 82

Abstract : The costs to acquire space-based missile defense systems are often reviewed by DoD. Issues are raised concerning the cost models used to generate cost estimates for space-based missile defense systems. The Ballistic Missile Defense Organization questions the use of traditional weight-based spacecraft cost models developed by the Air Force Space and Missile Systems Center. The concern is motivated by changes in satellite designs of future systems where smaller but more capable spacecraft are being built. Using weight-based cost models yields lower cost estimates, although the spacecraft are more capable. IDA developed spacecraft functional (engineering and manufacturing) cost-estimating relationships (CERs) at the spacecraft subsystem level using performance and physical characteristics that are not primarily weight-based. We developed nonrecurring (design, development, and test) and recurring (production) CERs for the spacecraft bus, including ground support equipment, and for communications payloads. The CERs show that programmatic aspects, which reflect the requirements and acquisition environments that the satellites were acquired under, have considerable influence on satellite costs.

Descriptors :   *COST ESTIMATES, *BALLISTIC MISSILE INTERCEPT SYSTEMS, *MILITARY SATELLITES, DATA BASES, PAYLOAD, SYSTEMS ENGINEERING, ATTITUDE CONTROL SYSTEMS, MANAGEMENT PLANNING AND CONTROL, MANUFACTURING, LIFE EXPECTANCY(SERVICE LIFE), EARTH ORBITS, SPACE SURVEILLANCE, SURVIVABILITY, PRODUCTION ENGINEERING, COST MODELS, LAUNCHING, POWER SUPPLIES, SATELLITE COMMUNICATIONS, SYSTEMS ANALYSIS, GUIDED MISSILE DEFENSE SYSTEMS, DESIGN CRITERIA, GROUND SUPPORT EQUIPMENT, COMMUNICATION SATELLITES, DESIGN TO COST, RECONNAISSANCE SATELLITES, TELEMETER SYSTEMS, SPACE BASED.

Subject Categories : Economics and Cost Analysis
      Antimissile Defense Systems
      Unmanned Spacecraft

Distribution Statement : APPROVED FOR PUBLIC RELEASE