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Technology Assessments within NASA's Integrated Technology Assessment CenterNASA's Advanced Space Transportation Program (ASTP) founded the Integrated Technology Assessment Center (ITAC) to provide a comprehensive, systematic approach to identify long-term technology needs, to quantify payoffs for technology investments, and to assess the progress of ASTP-sponsored technology programs in the hypersonics/Earth-to-orbit area. To accomplish these goals, the ITAC has assembled an experienced team representing a broad sector of the aerospace community and developed a systematic assessment process complete with supporting tools. In the ITAC approach, concepts for transportation systems are first selected based on relevance to the ASTP. Models of these concepts are then developed and data on advanced technologies are collected. Projections of key technology characteristics with respect to the specific concepts of interest are made. Both the models and technology projections are then fed into the ITAC's probabilistic systems analysis framework. The probabilistic outputs are weighed against metrics of interest to ASTP and a multivariate decision making process is used to provide inputs for technology prioritization within the ASTP. At present, the ITAC program is working to evaluate a variety of technologies for three two-stage hypersonic vehicle concepts. Concepts include an all rocket, vertical take off-horizontal landing (VTHL) system, a horizontal takeoff-horizontal landing (HTHL) RBCC-propelled first stage/all rocket second stage system, and an HTHL turbine-based first stage/all rocket second stage system. This paper will provide a status update of the ITAC program including current results and plans.
Document ID
20020075586
Document Type
Conference Paper
Authors
Taylor, J. L.
(NASA Marshall Space Flight Center Huntsville, AL United States)
Neely, M. A.
(NASA Marshall Space Flight Center Huntsville, AL United States)
Curran, F. M.
(Science Applications International Corp. Huntsville, AL United States)
Christensen, E. R.
(Science Applications International Corp. Huntsville, AL United States)
Escher, D.
(Science Applications International Corp. Huntsville, AL United States)
Lovell, N.
(Science Applications International Corp. Huntsville, AL United States)
Date Acquired
August 20, 2013
Publication Date
April 1, 2002
Publication Information
Publication: 38th JANNAF Combustion Subcommittee Meeting
Volume: 1
Subject Category
Space Transportation And Safety
Distribution Limits
Public
Copyright
Other

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