Included is a set of viewgraphs that present the results of a study conducted at the LaRC Space Station Freedom Office at the request of the Space Station Freedom Level 1 Program Office and the JSC ACRV Project Office to determine the implications of accommodating two Soyuz TM spacecraft as Assured Crew Return Vehicles (ACRV) on the Space Station Freedom (SSF) at the Permanently Crewed Capability (PCC) stage. The study examined operational as well as system issues associated with the accommodation of the Soyuz for several potential configuration options. Operational issues considered include physical hardware clearances, worst case Soyuz departure paths, and impacts to baseline operations such as Pressurized Logistics Module (PLM) exchange, Space Station Remote Manipulator System (SSRMS) attachment, Extravehicular Activity (EVA), and automatic rendezvous and docking (AR&D). Systems impact analysis included determining differences between Soyuz interface requirements and SSF capabilities for the Electrical Power System (EPS), Thermal Control System (TCS), Communications and Tracking (C&T), Audio-Video Subsystem (A/V), Data Management System (DMS), and Environmental Control and Life Support System (ECLSS). Significant findings of this study have indicated that the current AV capability of the Soyuz will need to be increased to provide adequate departure clearances for a worst case escape from an uncontrolled SSF and that an interface element will be required to mate the Soyuz vehicles to station, provide for AR&D structural loads, and to house Soyuz-to-SSF system interfaces.


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    Implementation of the Soyuz ACRV for the Space Station Freedom

    Houston, S. J. / International Academy of Astronautics / International Astronautical Federation | British Library Conference Proceedings | 1996


    Soyuz/ACRV accommodation study

    Cruz, Jonathan / Gould, Marston J. / Dahlstrom, Eric | NTRS | 1993


    ACRV derived transportation system

    PETERSON, WAYNE | AIAA | 1992


    International Space Station (ISS) Accommodation of a Single US Assured Crew Return Vehicle (ACRV)

    Mazanek, Daniel D. / Garn, Michelle A. / Troutman, Patrick A. et al. | NTRS | 1997