rootbrowseIAC-17D2session 44. Future Space Transportation SystemsPapers1. HTV-X system integration plan2. Ariane Next : weighting options for the next generation of Ariane launchers.3. Evaluation of Future Ariane Reusable VTOL Booster Stages4. Systematic Assessment of Reusable First-Stage Return Options5. DREAM CHASER FOR EUROPEAN UTILIZATION (DC4EU): ESA PILOT PHASE RESULTS6. Development plan and demonstration of Japanese reusable launch vehicle7. design and ground test of an rbcc based two-stage-to-orbit reusable launch vehicle8. A Conceptual Analysis and Comparison of a Two-Stage-To-Orbit Reusable Launch Vehicle Using Airbreathing Precooling Hypersonic Engines9. A feasibility study and conceptual proposal of a reusable multistage winged space transportation system with tandem orbiter-carrier connection by horizontal take-off and landing10. Multidisciplinary Shape Optimization of Reusable Space Vehicle11. Preliminary Design for Modular SEP Tug Utilizing Dream Chaser Cargo Module