NACA INLET DUCT BEING INSTALLED IN THE ALTITUDE WIND TUNNEL AWT FOR TESTING OF THE J-40 ENGINE
A rail crane lowers an inlet duct into the 20-foot diameter Altitude Wind Tunnel (AWT) test section. The test section lid can be seen to the left (10/3/1951).
Image Credit: NASA
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https://www.nasa.gov/image-detail/grc-1951-c-28464/
Image CreditNASA
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