Inside the diffuser section of a 16-foot supersonic wind tunnel. - stock photo

Inside the diffuser section of the16-foot supersonic wind tunnel at Arnold Air Force Base, Tennessee. Air that has been pushed through the section seen has passed through progressively narrowing tunnel sections and 90-degree turns that lead to the test section. The PWT test section is as tall as a two-story house and as heavy as a railroad locomotive. The inside of the test section is 16' tall. They are positioned just behind a 40 feet long variable venturi, side walls that have hydraulic pistons to push the two flexible 16 foot tall by 40 foot long wall toward each other or apart to adjust the air speed and maintain smooth air flow into the test section. The facility is devoted to aerodynamic and propulsion integration testing of large-scale aircraft models.
Inside the diffuser section of the16-foot supersonic wind tunnel at Arnold Air Force Base, Tennessee. Air that has been pushed through the section seen has passed through progressively narrowing tunnel sections and 90-degree turns that lead to the test section. The PWT test section is as tall as a two-story house and as heavy as a railroad locomotive. The inside of the test section is 16' tall. They are positioned just behind a 40 feet long variable venturi, side walls that have hydraulic pistons to push the two flexible 16 foot tall by 40 foot long wall toward each other or apart to adjust the air speed and maintain smooth air flow into the test section. The facility is devoted to aerodynamic and propulsion integration testing of large-scale aircraft models.
Inside the diffuser section of a 16-foot supersonic wind tunnel.
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