4.3. Systems Design
   4.3.1. Guidance, Navigation, and Control
   4.3.2. Communications Systems
   4.3.3. Electrical Power Systems
   4.3.4. Thermal Control Systems
   4.3.5. Life Support Systems
   4.3.6. Pressure Vessels
   4.3.7. Structures and Mechanisms
   4.3.8. EVA Systems
   4.3.9. Propulsion
   4.3.10. Mission Equipment
      4.3.10.1. Photographic Equipment
      4.3.10.2. Site Survey Equipment
      4.3.10.3. Scientific Equipment
      4.3.10.4. Oxygen Extraction Pilot Plant
      4.3.10.5. Lunar Sample Storage
   4.3.11. Test and Verification
   4.3.12. Spacecraft Video Equipment
   4.3.13. Materials and Processes
   4.3.14. Crew Systems