This report summarizes the results of a comprehensive NASA in-house study to identify and assess alternate approaches to access to space through the year 2030, and to select and recommend a preferred cause of action. The goals of the study were to identify the best vehicles and transportation architectures to make major reductions in the cost of space transportation (at least 50%), while at the same time increasing safety for flight crews by at least an order of magnitude. In addition, vehicle reliability was to exceed 0.98 percent, and, as important, the robustness, pad time, turnaround time, and other aspects of operability were to be vastly improved. This study examined three major optional architectures: (1) retain and upgrade the Space Shuttle and expendable launch vehicles; (2) develop new expendable vehicles using conventional technologies and transition from current vehicles beginning in 2005; and (3) develop new reusable vehicles using advanced technology, and transition from current vehicles beginning in 2008. The launch-needs, mission model utilized for for the study was based upon today's projection of civil, defense, and commercial mission payload requirements.


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    NASA's access to space study

    Aldrich, A. D. | British Library Online Contents | 1994


    NASA's access to space study

    Aldrich, Arnold D. | NTRS | 1994


    NASA's access to space study

    Aldrich, A. D. / Association Aeronautique et Astronautique de France / Royal Aeronautical Society et al. | British Library Conference Proceedings | 1994


    Space access

    Online Contents | 2004