Langley’s First Wind Tunnel, ca. 1920
The honeycombed, screened
center of this open-circuit air intake for Langley’s first wind tunnel
insured a steady, non-turbulent flow of air. Two mechanics pose near the
entrance end of the actual tunnel, where air was pulled into the test
section through a honeycomb arrangement to smoothen the flow.
Courtesy NASA Langley Research Center
/ via
furtho / source: monovisions
un regard oblique 