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Variable Density Tunnel (VDT)

The VDT was controlled from this panel on an elevated platform. Note the all-important pressure gauge above the panel and the technicians peering through portholes at the model inside. The pressure shell’s riveted construction is clearly evident.

 

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Credit: NASA

Image Number: LRC-1923-B701_P-00484

Date: May 12, 1923

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Uploaded on May 12, 2024
Taken on May 12, 1923