DLR's launcher systems analysis division is investigating since a couple of years a visionary, extremely fast passenger transportation concept reaching the edges of space based on rocket propulsion. Thanks to multinational collaboration, the technical lay-out of the SpaceLiner has now matured to Phase A conceptual design level. Iterative sizing of all major subcomponents in nominal and off-nominal flight conditions has been performed. The paper describes the recent technical progress achieved in the SpaceLiner 7 configuration,• mainly system aspects of the reference vehicle's preliminary design including establishment of a preliminary structural concept, • main propulsion system definition, • pre-development of a passenger cabin and rescue capsule and its specific challenges, • preliminary sizing of the thermal protection and active cooling systems, • mission definition with its nominal trajectories including potential ground infrastructure, • programmatic development aspects Subscripts, Abbreviations CAD computer aided design GLOW Gross Lift-Off Mass LH2 Liquid Hydrogen LOX Liquid Oxygen NPSP Net Positive Suction Pressure MECO Main Engine Cut Off MR mixture ratio RCS Reaction Control System RLV Reusable Launch Vehicle SLME SpaceLiner Main Engine TPS Thermal Protection System TRL Technology Readiness Level

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