Shuttle concept model; Grumman/Boeing Phase B Double Prime partially reusable design, 1972. Two white winged craft and external tank with blue stripe trim. Vertical stack: orbiter mounted on tank, and tank mounted on nose of booster. Created by Mark Avino Date Created 04/14/2016 Source Smithsonian National Air and Space Museum Keywords Human Spaceflight; Missions; Models; Space; Space Shuttle Rights and Restrictions Not determined
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