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Design of a Piloted Spacecraft to Bridge the Gap between the Space Shuttle and Crew Exploration Vehicle

Design of a Piloted Spacecraft to Bridge the Gap between the Space Shuttle and Crew Exploration Vehicle. Michael Seibert University of Colorado at Boulder. Presentation Overview. Motivation Vehicle Requirements Conceptual Design Compatible Launch Vehicles Conclusions. Motivation.

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Design of a Piloted Spacecraft to Bridge the Gap between the Space Shuttle and Crew Exploration Vehicle

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  1. Design of a Piloted Spacecraft to Bridge the Gap between the Space Shuttle and Crew Exploration Vehicle Michael Seibert University of Colorado at Boulder

  2. Presentation Overview • Motivation • Vehicle Requirements • Conceptual Design • Compatible Launch Vehicles • Conclusions 2005 CSGC Undergraduate Research Symposium “Tomorrow’s Workforce”

  3. Motivation • Hiatus in piloted spaceflight capability • 2010-2014 • Four Options • Extend STS operations past 2010 • Contract with foreign governments • Accelerate CEV development • Develop a new vehicle 2005 CSGC Undergraduate Research Symposium “Tomorrow’s Workforce”

  4. Vehicle Requirement Areas • Crew Size • Launch Vehicle Compatibility • Launch Abort • Orbital Maneuvering • Rendezvous and Docking • On Orbit Life • Recovery • Reusability 2005 CSGC Undergraduate Research Symposium “Tomorrow’s Workforce”

  5. Crew Size 5 person crew Launch Vehicle Compatibility Any 2005 existing or final design phase LV Launch Abort Capability must be provided Orbital Maneuvering 300-400m/s ΔV Rotation and translation Vehicle Requirement Summary 2005 CSGC Undergraduate Research Symposium “Tomorrow’s Workforce”

  6. Rendezvous and Docking 2 days maximum Automated Dock with US segment On Orbit Lifetime 100 day minimum Recovery Reentry 75nm cross range 500nm down range Recovery Continued Controllable Descent Landing Nondestructive Conventional Runway Reusability Returned components only Vehicle Requirements Summary 2005 CSGC Undergraduate Research Symposium “Tomorrow’s Workforce”

  7. Winged Vehicle Pros Highly maneuverable Runway landing Cons High temperature reentry Capsule Pros Lower temperature reentry Simpler design Cons Low maneuverability Requires parachute for landing Conceptual Design 2005 CSGC Undergraduate Research Symposium “Tomorrow’s Workforce”

  8. Conceptual Design • ECLSS • LiOH scrubbers • Separate ascent and descent air supplies • Crew Size • Two row arrangement 2005 CSGC Undergraduate Research Symposium “Tomorrow’s Workforce”

  9. Conceptual Design • Rendezvous • Automated approach • Deployable radar system • Docking • APAS-89 docking adapter [1] 2005 CSGC Undergraduate Research Symposium “Tomorrow’s Workforce”

  10. Conceptual Design • Recovery • Lift vector generation • Offset center of mass and shaped heat shield • Parafoil descent • 1NM-2NM maneuvering range • Landing • Tricycle landing gear • Controlled rollout • Differential braking 2005 CSGC Undergraduate Research Symposium “Tomorrow’s Workforce”

  11. Conceptual Design • Reaction Control System • Roll/translation thruster pairs • Translation only pairs • Orbital Maneuvering System • Single engine on roll axis 2005 CSGC Undergraduate Research Symposium “Tomorrow’s Workforce”

  12. Conceptual Design • Miscellaneous • S/C Cooling • Heat exchangers (water/ammonia) • Crew ingress/egress • Hatch on port side next to rear seats • Windows • Four • 2 30cm diameter next to rear seat rows • 2 next to front seats 2005 CSGC Undergraduate Research Symposium “Tomorrow’s Workforce”

  13. Conceptual Design 2005 CSGC Undergraduate Research Symposium “Tomorrow’s Workforce”

  14. Estimated Spacecraft Mass 11,000kg* Delta IV Family Medium+ (4,2) $138M Medium+ (5,4) $160M Atlas V Family 400 series $138M Compatible Launch Vehicles *Based upon historical spacecraft densities, see accompanying paper 2005 CSGC Undergraduate Research Symposium “Tomorrow’s Workforce”

  15. Conclusions • It is possible to develop a new vehicle before 2010 • The vehicle described will provide unprecedented launch flexibility • The vehicle describe can be used to complement the resumption of exploration beyond LEO 2005 CSGC Undergraduate Research Symposium “Tomorrow’s Workforce”

  16. Questions?

  17. References Background Image: NASA http://solarsystem.nasa.gov/multimedia/gallery/ Columbia_Moon.jpg [1] Portree, D. Mir Hardware Heritage. NASA RP 1357. NASA, Houston. March 1995 2005 CSGC Undergraduate Research Symposium “Tomorrow’s Workforce”

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