Contents

[Title Page]


A1.0 Introduction

A2.0 Strategic Modifications

A2.1 Reference Mission 1.0 Launch Strategy

A2.1.1 System Repackaging

A2.1.2 System Mass Reductions

A2.1.3 Modified Launch Strategy

A2.2 Elimination of Initial Habitat Flight

A2.2.1 Volume Augmentation

A2.2.2 Redundancy Considerations

A2.3 Revised Mission Strategy for Version 3.0

A3.0 System Design Improvements

A3.1 Incorporation of TransHab Improvements

A3.2 System Improvements

A3.2.1 In-Situ Resource Utilization

A3.2.2 Power Systems

A3.2.3 Science Systems

A3.2.4 EVA Systems

A3.3 Transportation System Improvements

A3.3.1 Earth-to-Orbit Transportation

A3.3.2 Trans-Mars Injection

A3.3.3 Aeroassist

A3.3.4 Descent and Landing

A3.3.5 Ascent

A3.3.6 Trans-Earth Injection

A3.3.7 Launch Packaging

A4.0 Summary of Reference Mission Version 3.0

A5.0 Revolutionary Next Steps

A5.1 Solar Electric Propulsion

A5.1.1 Electric Propulsion Mission Concept

A5.1.2 Electric Vehicle Concepts

A5.2 Aerocapturing the TransHab

A5.3 Bimodal Nuclear Thermal Rocket (NTR) Propulsion

5.3.1 Bimodal NTR Mission Concept

5.3.2 All Propulsive" Bimodal NTR Option Using TransHab

5.3.3 "LOX-Augmented" NTR Option

5.3.4 Three-Magnum Scenario

5.3.4.1 Mission Content

5.3.4.2 Strategies and Technology Challenges

5.3.4.3 Combination Lander Scenario

5.3.4.4 Split Mission Scenario

5.3.5 All Solar Scenario

A6.0 Continuing Work

 

List of Figures


Figure A2-1 Cargo and Piloted Vehicles for Reference Mission Version 1.0

Figure A2-2 Reference Mission Version 1.0 Mission Sequence

Figure A2-3 Mars Surface Lander and Habitat Aeroshells for Version 1.0

Figure A2-4 Habitat Repackaging Strategy

Figure A2-5 Historical Space Habitat Pressurized Volume

Figure A2-6 Mars Surface Inflatable Habitat Concept

Figure A3-1 Payload Capability to 407 km

Figure A3-2 Magnum Launch Vehicle

Figure A3-3 Schematic of solid core NTR turbopump and power cycle

Figure A3-4 NTR stage and aerobraked Mars payload for Version

Figure A3-5 Aeroassist Study Results for Version 3.0

Figure A3-6 Entry and Landing Parachute Study Results for Version 3.0

Figure A3-7 Launch and Packaging Configurations for Version 3.0

Figure A4-1 Reference Mission Sequence for Version 3.0

Figure A5-2 SEP Crew Taxi Concepts

Figure A5-3 Conceptual Solar Electric Propulsion Vehicle

Figure A5-4 Launch manifest for the Solar Electric Propulsion Vehicle Concept

Figure A5-5 Potential Transhab Aerobrake Configurations

Figure A5-6 Schematic "Bimodal" NTR System

Figure A5-7 "Bimodal" NTR Transfer Vehicle Option

Figure A5-8 All Propulsive Bimodal NTR Carrying TransHab

Figure A5-9 Three-Magnum Combination Lander Scenario

Figure A5-10 Three-Magnum Combination Lander Launch Packages

Figure A5-11 Combination Lander Concept on Mars Surface

Figure A5-12 Three-Magnum Split Mission Scenario

Figure A5-13 Three Magnum Split Mission Launch Packages

Figure A5-14 Solar Irradiation at Mars

 

 

 

List of Tables


Table A3-1 Mass Reduction Benefits from the Transhab Study

Table A3-2 ISRU System Breakdown for Version 3.0

Table A3-3 Power System Improvements for Version 3.0

Table A3-4 Science Manifest for Version 3.0

Table A3-5 Launch Vehicle Requirements

Table A3-6 Payload Capability to 407 km

Table A4-1 Payload Mass Evolution from Version 1.0 to Version 3.0

Table A4-2 Earth Return Vehicle Mass Scrub for Version 3.0

Table A4-3 Cargo Lander Mass Scrub for Version 3.0

Table A4-4 Piloted Lander Mass Scrub for Version 3.0

Table A5-1 Comparison of "Bimodal" NTR to Reference Mission Version 3.0