This paper presents the effects of propulsion technology evolution on the recital capability of advanced missile systems. The-evolution of the missile propulsion system from rocket to rain jet with increased emphasis on advanced air breathing missile cycles, has significantly extended missile operational capabilities. The development of these new areas of ramjet technology, specifically in solid fuel propellants, offers the advantages of large increases in heating value, density, burning efficiency and improved system packaging. Application of these technology advancements to potential mission scenarios produces impressive increases in overall mission performance. These large performance gains provide a basis for improvements in mission effectiveness in terms of kill probability and survivability. Kill probability is increased by application of shorter intercept times, improved multi-shot capability and reductions in individual system size to improve weapon carrier payload capability. Survivability is enhanced by increased standoff distances and higher penetration velocities. Demonstration of these improved capabilities, over a variety of tactical mission is provided by a direct comparison of missile performance for a variety of missile propulsion systems. The systems studied range from the conventional solid rocket system to the advanced highly energetic boron solid fuel ramjet concept
