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This paper discusses the outfitting of the Resource Nodes for Space Station Freedom. The driving functional and design requirements are discussed briefly in relation to the current overall configuration and internal outfitting. The major features of the Resource Node internal architecture, distributed system packaging, crew accommodations, utility distribution, and the Centrifuge Facility are described. This current design approach meets the program requirements for crew accommodations, on-orbit maintainability, and growth of the re-structured Space Station Freedom over its projected 30 year life. This paper updates a similar paper presented in 1988, and as such, the reader may find it useful to refer to SAE Technical Paper #881120.

Future long-term exploratory missions such as the piloted moon and Mars missions discussed in President Bush's July 20,1989 initiative expose crew members to reduced gravity environments. While the artificial gravitational environments created by rotation may reduce or eliminate the debilitating effects of microgravity on humans, they also present unique design challenges. This paper discusses the role of a Variable Gravity Research Facility (VGRF) as a test bed, the identification of critical crew systems issues, and the simulation of all phases of a piloted Mars mission in the relative safety of Earth orbit. Three candidate internal architectures and specific crew interface systems are presented and evaluated. Potential uses of the same or similar internal architectures for crew volumes on the surface of the moon and Mars are discussed.