North American Rockwell Minimum Cost Booster From October 1968, this 48-page Space Division of North American Rockwell Corporation presentation describes a low-cost space booster designed to use unimpressive technology levels. The basic vehicle was two-stage, fueled by hydrazine and N2O4 and traded pressure-feed and pump feed. Report describes trades on main engines (designs from TRW, Aerojet and Rocketdyne are shown), payload capabilities (from 10Klbs to 100Klbs), tank materials, structural concepts, etc.
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