NEWLY COMPLETED ALTITUDE WIND TUNNEL AWT VACUUM CHAMBER AND VACUUM PUMP INSTALLATION
Interior of the Vacuum Pump House below Space Power Chamber No. 1. The building had 12 diffusion pumps to evacuate the chamber to pressures altitudes found in space (5/11/1962).
Image Credit: NASA/MARTIN BROWN
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https://www.nasa.gov/image-detail/grc-1962-c-60342/
Image CreditNASA/MARTIN BROWN
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