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A centerline pipe, pictured here, is used to measure pressure and determine test conditions in the 16-foot transonic wind tunnel at AEDC. According to Michael Mills, wind tunnel performance engineer, this process is known as calibrating the tunnel and takes place every few years to ensure that correct conditions are being simulated in 16T. (Photo by Rick Goodfriend)


AEDC transonic wind tunnel undergoes calibration

A centerline pipe, pictured here, is used to measure pressure and determine test conditions in the 16-foot transonic wind tunnel at AEDC. According to Michael Mills, wind tunnel performance engineer, this process is known as calibrating the tunnel and takes place every few years to ensure that correct conditions are being simulated in 16T. (Photo by Rick Goodfriend)

Related Imagery
Oren Harper and Garrett Farrar prepare for the Air Force Association StellarXplorers space system design competition in November 2016. Both students at Coffee County Central High School are members of the Air Force Junior ROTC. They recently competed in March as the Coffee County High School Team One and placed second in the competition for the East Region. The High School had two teams who competed in the Prestige Division. As part of the competition, teams must present solutions to a typical space design problem, such as orbit determination, satellite component selection and launch vehicle planning, as outlined in a scenario describing the system’s mission and constraints. The AEDC Science, Technology, Engineering and Mathematics Center coordinator, Jere Matty, and the Women in Defense membership director, Kim Nelson, provided support that enabled the team to compete. (Courtesy photo)
The Coffee County Central High School Air Force Junior ROTC StellarXplorers Team One received second place in the Air Force Association StellarXplorers space system design competition, Prestige Division, in March. During the competition, teams are asked for their solutions to a typical space design problem, such as orbit determination, satellite component selection and launch vehicle planning, as outlined in a scenario describing the system’s mission and constraints. Pictured, from left, is Chad Overcast, team mentor and AEDC physicist; Team One member Oren Harper; Team Two members Tyler Vaughn and Elisha Carter; Team One member Stuart Jackson; Team Two member Alexander Brown; Team One member Garrett Farrar; and Kim Nelson, team mentor and Women in Defense membership director. Not pictured: Team Two member Malachi Lovely. (Courtesy photo)
Team Legotronics from Harris Middle School in Shelbyville receive a first place LEGO® trophy at the East Tennessee FIRST® LEGO® League Championships held at Tennessee Tech University in February. The students placed for their presentation of their Animal Allies project. (Photo submitted)
AEDC Woman’s Club scholarship recipients are pictured here with the club president, program speaker and scholarship chairpersons. From left is AEDCWC program speaker Susan Gritton, Ascend Federal Credit Union; scholarship chairperson Kelly Doyle; Coffee County Central High School scholarship recipients Tyler Reynolds and Kelsea Selvage; Tullahoma High School scholarship recipients Samantha Donde and Hannah Luthi; Huntland High School scholarship recipient Candace Hargrave; Franklin County High School scholarship recipient Christian Steele; scholarship chairperson Suzette McCrorey; and AEDCWC president Kate Canady. (Courtesy photo)
Logging at Arnold Air Force Base is shown here as part of the Base Forest Management Program priorities for Air Force land use, which are sustainable mission support and stewardship. (AEDC photo)
An F-22A aircraft model is maneuvered to a very high angle of attack during wind tunnel testing in 16T in 1995. This test helped to define performance and aircraft stability and control. (AEDC photo)
AEDC workers inspect tiles in the Propulsion Wind Tunnel 16-foot Supersonic Tunnel in 2014. (U.S. Air Force photo/Rick Goodfriend)
This 1957 photo of the Main Control Room-for the Propulsion Wind Tunnel’s transonic circuit shows manometer banks at left, for recording pressures from the tunnel’s test section. At the far rear is a closed-circuit television monitor which shows the test item on its screen. The tunnel’s chief operator is seated in the center of the room. (AEDC photo)
This image shows a laser curtain that was installed on a 500-ton Cincinnati Press Brake due to a recommendation by a team member. Several AEDC craft workers were involved with the installation. The press brake is used to bend steel plates up to three-quarters of an inch thick and 14-feet long. The safety concern for the apparatus is that the press uses large flywheels and once it is triggered, it can’t be easily stopped. If a person comes into close proximity to the moving parts, they could be injured. (AEDC photo)
Members of the Manufacturing Safety Leadership Council, pictured left to right: Group Manager Dave Simmons, Inside Machinist Tim Scott, Inside Machinist Bob Williams, Non-Destructive Evaluation Technician Shannon Medley, Outside Machinist Jim Hereford, Deputy Group Manager Scott Henninger, Fabrication Planner Jeff Tate, Industrial Engineer Tracy McDonald, Sheet Metal Worker Paul Gallagher, Electrician Kendall Hampton, Pipefitter Paul Mosley, Ironworker Kevin Glaser, Chairman and boilermaker Robby Brannan, Operations and Maintenance Specialist Clara Sanders, and AEDC Safety Dave Dawkins. Members not shown are Craft Supervisor Darrell Townsend and Chemical and Material Engineer Ken Delaney. (U.S. Air Force photo/Rick Goodfriend)
A load bank, previously used to test 440 volt welders, is pictured on the left. The 40-year old load bank didn’t meet regulations for operations posing a hazard to operators. Pictured on the right is the new load bank which replaces the older version. (AEDC photo)
AEDC engineer Andrew Redmon gives a presentation at an innovation meeting held March 21 at the AEDC Model and Machine Shop. He presented ways that software improvements for the AEDC National Full-Scale Aerodynamics Complex at Ames Research Center in California are making test data analysis more user-friendly and efficient. (U.S. Air Force photo/Deidre Ortiz)