AIAA Responsive Space April 22, 2004 Highly Operable Propulsion System Approaches and Propulsion Technologies for Operationally Responsive Space Systems Russell Joyner Discipline Chief - Space Systems and Mission Analysis Performance Systems Analysis & Integration 6/4/022 Presentation Outline Introduction Responsive Space, Historically Speaking Spirally Develop with A Focus Ground Rules for Study: Responsive Small Launch Vehicle Analysis Process Results TSTO RSLV Spiral 0-1 TSTO RSLV Spiral 0-1 Geometry Comparison Spiral Development from TSTO RSLV to HTO-RSLV Horizontal Take-Off (HTO) RSLV Concept Trades HTO RSLV Concept Comparison to Legacy Systems Boil Off Issues for Cryogenics - Impact of Integrated Thermal Management Unit (ITMU) Summary Of Observations 6/4/023 Introduction AFSPC /02; Operationally Responsive Spacelift (ORS) and Prompt Global Strike Mission Needs Statement Decomposition .. capability to rapidly put spacecraft into orbit .. maneuver spacecraft to any point in earth-centered space .. logistically support them on orbit or return them to earth .. strike globally and rapidly high value difficult to defeat targets in a single or multi-theater environment Operationally Responsive Spacelift Needs Architectures that Support an Over-arching Vision That Can Evolve Spiral Development, Merging of Technical Capability and Budget Realities A Spiral Development Approach for ORS Needs A Roadmap that Includes the Present and the Possible..Technologies on the Shelf or at High Readiness An Approach for Creating the Roadmap from an Operationally Responsive Propulsion and Propellants Point of View Evolve to Higher Responsiveness By Spiraling in Upgrades to Propulsion, Propellants, Propellant Management, and Dispersed Launch Capability AIAA Responsive Space Responsive Space, Historically Speaking Use of Cryogenics for Propellants Was Successful Because of Focused Process and Mission Images Courtesy: Strategic Missile Website Titan I Jupiter Thor Time to Launch