Variable Density Tunnel
This interior view of the Variable Density Tunnel (VDT) at the NACA's Langley Laboratory, taken shortly after it opened in 1922, looks downstream. Note the wooden construction, the propeller in the background and the observation windows. These windows aligned with small portholes in the pressure shell.
Credit: NASA
Image Number: L-405
Date: Circa 1926
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Uploaded on August 2, 2013
Taken circa 1926
Variable Density Tunnel
This interior view of the Variable Density Tunnel (VDT) at the NACA's Langley Laboratory, taken shortly after it opened in 1922, looks downstream. Note the wooden construction, the propeller in the background and the observation windows. These windows aligned with small portholes in the pressure shell.
Credit: NASA
Image Number: L-405
Date: Circa 1926
16,202
views
3
faves
0
comments
Uploaded on August 2, 2013
Taken circa 1926