LAUNCH VEHICLE DOWNSELECT

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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
Six Expendable Vehicles
Ariane 5
Atlas V
Delta IV
Zenit
Proton
Titan IV
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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

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LAUNCH VEHICLE DOWNSELECT
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LAUNCH VEHICLE DOWNSELECT
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LAUNCH VEHICLE DOWNSELECT
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LAUNCH VEHICLE DOWNSELECT
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LAUNCH VEHICLE DOWNSELECT
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LAUNCH VEHICLE DOWNSELECT
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LAUNCH VEHICLE DOWNSELECT
PRIMARY LAUNCH SYSTEMS
Delta IV-Heavy
Atlas V-552
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LAUNCH VEHICLE CONFIGURATION
ATLAS V-552
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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

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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 spacecrafts
  initial burn

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LAUNCH VEHICLE CONFIGURATION
DELTA IV-HEAVY
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LAUNCH VEHICLE CONFIGURATION
DELTA IV-HEAVY

• COMPOSITE FAIRING
• 5 m diameter by 19.1m
• bisector fairing
• graphite epoxy foam core
• composite sandwich structure

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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