Shuttle concept model; Lockheed Phase B stage-and-a-half Star Clipper concept, 1971. Orbiter with side-mounted external tanks in a triangular or wedge configuration; dark gray with white markings; circular stand. 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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