DEPARTMENT OF THE AIR FORCE SMC REGULATION 800-28

Headquarters Space and Missile Systems Center (AFMC)

Los Angeles Air Force Base, California 90009-2960

Acquisition Management

INDEPENDENT MASS PROPERTIES, STABILITY AND CONTROL

ANALYSES OF SPACECRAFT AND LAUNCH VEHICLES

This regulation establishes policies, procedures and assigns responsibilities for SMC program offices to implement independent mass properties, stability and control analyses for spacecraft and launch vehicle acquisitions.

1. Policy All SMC space programs shall obtain an independent analysis of mass properties, stability and control for all new designs and for all modifications to existing designs involving spacecraft or launch vehicles.

2. Background Contractor assumptions in stability and control analyses as well as inaccuracies in mass properties models and data employed in these analyses have led to failures and anomalies of space systems. Independent analyses will be accomplished at appropriate points in the program to assure validity of the contractor's effort. SMC Pamphlet 800-4 "Independent Analyses of Spacecraft and Launch Vehicles", provides guidance for obtaining an analysis.

3. Responsibilities and Procedures

a. Each SMC program office shall obtain an independent analysis of mass properties, stability and control for all new designs and for all modifications to existing designs for their spacecraft and launch vehicle acquisitions. The independent analyses shall be completed prior to PDR and updated, as required, for all subsequent major design reviews.

b. Each SMC program office shall use SMC Pamphlet 800-4 as an aid in establishing the extent of the independent analyses.

c. Each SMC program office shall assure that significant variances in data or methodology between contractor data presented at PDR (and subsequent major design reviews) and the independent analyses are resolved prior to accepting the proposed design.

d. Instructions for applying and executing this regulation are provided by SMC Regulation 540-15 (Systems Engineering Policy). Any program director who does not apply and execute this regulation, as required by SMCR 540-15, shall immediately request a waiver from the Commander.

Edward P. Barry, Jr.

Lieutenant General, USAF

Commander