The role of the National Launch System in support of Space Station FreedomA study was performed to determine the most appropriate potential use of the National Launch System (NLS) for Space Station Freedom (SSF) logistics resupply and growth assembly needs. Objectives were to estimate earth-to-SSF cargo requirements, identify NLS sizing trades, and assess operational constraints of a shuttle and NLS transportation infrastructure. Detailed NLS and Shuttle flight manifests were developed to model varying levels of NLS support. NLS delivery of SSF propellant, and in some cases, cryoenic fluids, yield significant shuttle flight savings with minimum impact to the baseline SSF design. Additional cargo can be delivered by the NLS if SSF trash disposal techniques are employed to limit return cargo requirements. A common vehicle performance level can be used for both logistics resupply and growth hardware delivery.
Green, J. L. (NASA Langley Research Center Hampton, VA, United States)
Saucillo, R. J. (McDonnell Douglas Space Systems Co. Huntington Beach, CA, United States)
Cirillo, W. M. (NASA Langley Research Center Hampton, VA, United States)