Blue anodized aluminum bar with a central gold anodized tether loop on one edge and two turnbuckle bolts, one at each end; marked ETU nonflight (Engineering Test or Training Unit). The device can hold the door of the Power Control Unit trainer open at different angles. Created by Mark Avino Date Created 05/12/2016 Source Smithsonian National Air and Space Museum Keywords Equipment; Human Spaceflight; Space; Tools Rights and Restrictions Not Researched
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