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LAUNCH VEHICLE DOWNSELECT

LAUNCH VEHICLE DOWNSELECT. A Wide Variety of Launch Systems Are Available Today Initial Downselect Constraint Based Upon UMRM Requirements Primary Payload Size TOF Concerns Initial Downselect Constraint Launch Vehicle Should Be Capable of Lifting At Least 10,000 kg into LEO.

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LAUNCH VEHICLE DOWNSELECT

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  1. LAUNCH VEHICLE DOWNSELECT • A Wide Variety of Launch Systems Are Available Today • Initial Downselect Constraint Based Upon UMRM Requirements • Primary Payload Size • TOF Concerns • Initial Downselect Constraint • Launch Vehicle Should Be Capable of Lifting At Least • 10,000 kg into LEO

  2. LAUNCH VEHICLE DOWNSELECT Six Expendable Vehicles Ariane 5 Atlas V Delta IV Zenit Proton Titan IV

  3. LAUNCH VEHICLE DOWNSELECT • EVALUATION CRITERIA • 1) Reliability • Vehicle Success Rate • Family Success Rate • 2) Launch Inclination Availability • 3) Usable Volume of Largest Fairing • 4) Cost • 5) Payload Capability To LEO

  4. LAUNCH VEHICLE DOWNSELECT

  5. LAUNCH VEHICLE DOWNSELECT

  6. LAUNCH VEHICLE DOWNSELECT

  7. LAUNCH VEHICLE DOWNSELECT

  8. LAUNCH VEHICLE DOWNSELECT

  9. LAUNCH VEHICLE DOWNSELECT

  10. LAUNCH VEHICLE DOWNSELECT PRIMARY LAUNCH SYSTEMS Delta IV-Heavy Atlas V-552

  11. Fairing 5-m Diameter Composite Fairing Centaur Upper Stage and Adapter Dual Engine Centaur (DEC) Consisting of Two Pratt & Whitney RL10A-4-2 LOX/LH2 Engines Single Common Core Booster (CCB) Powered By A Single NPO Energomash/Pratt & Whitney RD-180 LOX/RP-1 Engine Solid Rocket Boosters (SRB’s) 5 Aerojet SRB’s For Added Performance LAUNCH VEHICLE CONFIGURATION ATLAS V-552

  12. LAUNCH VEHICLE CONFIGURATION ATLAS V-552 • LONG COMPOSITE FAIRING • 5 m diameter by 23.4 m • bisector fairing • graphite epoxy face sheets • aluminum honeycomb core

  13. LAUNCH VEHICLE CONFIGURATION ATLAS V-552 • TYPE D PAYLOAD ADAPTER • Marmon-type clampband separation system • Requires special payload interface adapter to be manufactured • Hardware adapter will attach to the main tank aft structure, • surrounding the 7 MITEE engines • Must jettison adapter prior to spacecraft’s initial burn

  14. 70-m Fairing 5-m Diameter Composite Fairing Encapsulating Payload and Attach Fittings 60-m 50-m Interstage Adapter Housing A Single Pratt & Whitney LOX/LH2 RL10-B2 Engine 3 Common Booster Cores (CBC’s) Each Powered By A Single Rocketdyne RS-68 LOX/LH2 Engine LAUNCH VEHICLE CONFIGURATION DELTA IV-HEAVY

  15. LAUNCH VEHICLE CONFIGURATION DELTA IV-HEAVY • COMPOSITE FAIRING • 5 m diameter by 19.1m • bisector fairing • graphite epoxy foam core • composite sandwich structure

  16. LAUNCH VEHICLE CONFIGURATION DELTA IV-HEAVY • Delta IV 1666-5 PAF • Marmon-type clampband separation system • Aft structure of each add-on tank will be designed to accommodate this • connection interface

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