Inside Out Library · Explore
The Effect of the Walls in Closed Type Wind Tunnels (1928)
NASA Technical Reports Server (NTRS) · leaf 5
4 REPORT NATIONAL ADVISORY COMMITTEE FOR AERONAUTICSNASA Technical Reports Server (NTRS)
Internet Archive · NASA Technical Reports · Public domain (US government work). Free to use for anything.
More pictures from The Effect of the Walls in Closed Type Wind Tunnels
More like this