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Photos

Snapshots of what’s happening in the Defense Department.

Dr. Richard Roberts conducts a site visit inside the diffuser section of the 16-foot supersonic wind tunnel on Arnold Air Force Base, Tenn. Oct. 6, 2009. Roberts is the project manager of the base's von Karman Gas Dynamics Facility and the Propulsion Wind Tunnel Facility, The PWT test section is as tall as a two-story house and as heavy as a railroad locomotive.

WINDY WORK

Dr. Richard Roberts conducts a site visit inside the diffuser section of the 16-foot supersonic wind tunnel on Arnold Air Force Base, Tenn. Oct. 6, 2009. Roberts is the project manager of the base's von Karman Gas Dynamics Facility and the Propulsion Wind Tunnel Facility, The PWT test section is as tall as a two-story house and as heavy as a railroad locomotive.

Photo Gallery