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>Ascent-Descent Vehicle (HIGH RISK)
-experimental biconic sphere-cone frustum, with lift-drag near 1.0
-SSTO (single stage to orbit) Mars surface launch
-non ablative thermal protective coating - REUSEABLE
-entry velocity at around 4.7 km/s, low angle of attack
-adaptable for human mission, very large payloads
-reliant on retropropulsion near touchdown
-tradeoff: low landing accuracy