6 - TRANSPORTATION Near-Term System Studies • Launch Systems Tradeoff Cost to Achieve Fully Recoverable System Vs Heavy Lift Capability Evaluate Impact of Launch Site Operations on Launch Vehicle Size Selection Tradeoff Packaging Density of Launch Vehicle Vs a Policy to Fabricate Low Density Components In Orbit • Orbit Transport Vehicles Study High Performance Stage Alternatives t Actuators * Power Source * Propellants Study Potential of Large Cyro Tugs • IJj Stage « 2 Stage
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