Mars direct - A coherent architecture for the Space Exploration InitiativeThe coherency of the conventional earth-orbital assembly/Mars orbital rendezvous is analyzed in terms of the Space Exploration Initiative (SEI) architecture and an alternate approach is given. The coherency - defined as a combination of simplicity, robustness, and cost-effectiveness - of the conventional SEI is found to be inadequate. The Mars Direct plan is described in detail and proposed as an efficient alternative for both Martian and lunar applications. In situ propellant production on the target-planet's surface is described, and candidate vehicle designs are set forth. Objectives and problems associated with a manned mission are outlined, and details regarding surface activities and support are given. Nuclear thermal rocket propulsion is determined to be an efficient way to improve mission capability, and the Mars Direct SEI architecture can integrate such technology. The Mars Direct SEI is concluded to be a more effective plan than the conventional rendezvous mission.
Document ID
19910059578
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Zubrin, Robert M. (Martin Marietta Corp. Denver, CO, United States)
Baker, David A. (Martin Marietta Astronautics Group Denver, CO, United States)
Gwynne, Owen (NASA Ames Research Center Moffett Field, CA, United States)