Discusses a computer model that can be used to project future energy needs for the U.S. Air Force based on force posture elements and operational activity. The model gives Air Force planners a rapid method of systematically comparing the energy impact of present and alternative programs, the effects of changed flying activities, and current and hypothetical weapon systems. Energy estimates are made of direct energy (that used by the prime mission equipment), direct support energy (that used by ground support and other related equipment), and ancillary support energy (that used on bases). The direct energy is identified by program element, program, and type of fuel. Direct support and ancillary support energy is estimated for the entire Air Force in terms of Btu and type of fuel, so that the results may be examined in terms of total energy (Btu) or in terms of the physical quantities of each type of fuel (tons of coal, gallons of jet fuel, etc.). 61 pp. Ref.