Shuttle concept model; Grumman/Boeing Phase B partially reusable design, 1972. Two white aircraft-like vehicles with red and black markings, mounted piggyback on a wood base. Created by Smithsonian National Air and Space Museum Date Created 07/21/2022 Source Smithsonian National Air and Space Museum Keywords Human Spaceflight; Missions; Models; Space; Space Shuttle Rights and Restrictions Not determined
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