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 Ariane 5 Atlas V Delta IV ProtonTitan IV Zenit Six Expendable Vehicles

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

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

11. LAUNCH VEHICLE CONFIGURATION ATLAS V-552 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 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

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

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