9413287507_4f5943b9a4_b - from our story 'Incredible Photos of Vintage NASA Wind Tunnels'

6- x 6-Foot Supersonic Wind Tunnel (June 1, 1948) A researcher inspecting a model in the 6- x 6-Foot Supersonic Wind Tunnel’s test section. Note the two circular schlieren windows, and that the vertical blade supporting the sting does not extend to the floor.

6- x 6-Foot Supersonic Wind Tunnel (June 1, 1948) A researcher inspecting a model in the 6- x 6-Foot Supersonic Wind Tunnel’s test section. Note the two circular schlieren windows, and that the vertical blade supporting the sting does not extend to the floor.

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