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A great NASA report,speaks about Rockwell 161C,and some shuttle concepts;http://ntrs.nasa.gov/archive/nasa/casi.ntrs.nasa.gov/19720013230_1972013230.pdf
A great NASA report,speaks about Rockwell 161C,and some shuttle concepts;
http://ntrs.nasa.gov/archive/nasa/casi.ntrs.nasa.gov/19720013230_1972013230.pdf
