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Decommissioned Mach 8 tunnel removed to make room for future test opportunities

The infrastructure seen here is all that remained of Tunnel E at the von Kármán Gas Dynamic Facility on Arnold Air Force Base, Tenn., prior to the start of its demolition in early 2022. Absent are the critical Mach 8 nozzle and test section components, as well as the unique magnetic model support system. Operational beginning in 1959, Tunnel E was a pilot facility for Tunnels B and C, which are still active wind tunnel test facilities today. (U.S. Air Force photos)
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Decommissioned Mach 8 tunnel removed to make room for future test opportunities

The infrastructure seen here is all that remained of Tunnel E at the von Kármán Gas Dynamics Facility on Arnold Air Force Base, Tenn., prior to the start of its demolition in early 2022. Absent are the critical Mach 8 nozzle and test section components, as well as the unique magnetic model support system. Operational beginning in 1959, Tunnel E was a pilot facility for Tunnels B and C, which are still active wind tunnel test facilities today. (U.S. Air Force photos)
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Decommissioned Mach 8 tunnel removed to make room for future test opportunities

This photo shows the original adjustable nozzle of Tunnel E, exposed with the sidewall open. Tunnel E, a wind tunnel that was once part of the von Kármán Gas Dynamics Facility on Arnold Air Force Base, Tenn., had been dormant and inoperable in Building 607 for several decades. (U.S. Air Force photo)
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Decommissioned Mach 8 tunnel removed to make room for future test opportunities

A technician inspects the adjustment mechanism for the original two-dimensional flexible wall variable Mach-number nozzle of the original configuration of Tunnel E, prior to the major revisions in 1967 to support a magnetic model support system. (U.S. Air Force photo)
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Decommissioned Mach 8 tunnel removed to make room for future test opportunities

This photo from a test in the late 1960s with a 10-degree cone suspended in the Tunnel E facility at Arnold Air Force Base, Tenn. (U.S. Air Force photo)
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Decommissioned Mach 8 tunnel removed to make room for future test opportunities

Marshall Brown, a former AEDC engineer, checks a model suspended in the Tunnel E wind tunnel at Arnold Air Force Base in January 1972. In Tunnel E, a magnetic model support system (MMSS) was used, which eliminated the need for strut or sting supports that generated unwanted disturbance in the wakes of the model. Models weighing up to 20 pounds could be tested with the MMSS. (U.S. Air Force photo)
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Decommissioned Mach 8 tunnel removed to make room for future test opportunities

Outside the north wall of the Tunnel E test bay, the upstream end of a large electric resistance heater formerly housed its electrical connects to the Heater Control Building. This pipe and the associated electrical wiring was removed as part of dismantling the tunnel at Arnold Air Force Base, Tenn., March 4, 2022. (U.S. Air Force photo by Jill Pickett)
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Decommissioned Mach 8 tunnel removed to make room for future test opportunities

Prior to their removal, disassembled pieces of Tunnel E sit in a building that housed the old wind tunnel at the von Kármán Gas Dynamics Facility on Arnold Air Force Base, Tenn., March 4, 2022. (U.S. Air Force photos by Jill Pickett)
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Decommissioned Mach 8 tunnel removed to make room for future test opportunities

Prior to their removal, disassembled pieces of Tunnel E sit in a building that housed the old wind tunnel at the von Kármán Gas Dynamics Facility on Arnold Air Force Base, Tenn., March 4, 2022. (U.S. Air Force photos by Jill Pickett)
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Decommissioned Mach 8 tunnel removed to make room for future test opportunities

Prior to their removal, disassembled pieces of Tunnel E sit in a building that housed the old wind tunnel at the von Kármán Gas Dynamics Facility on Arnold Air Force Base, Tenn., March 4, 2022. (U.S. Air Force photos by Jill Pickett)
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AEDC engineers team with local business, UTSI to apply optical flow visualization to jet engine testing

A shadow graph setup is seen here at the Propulsion Lab of the University of Tennessee Space Institute, near Arnold Air Force Base, Tenn., during a test of a J-85 engine. (Courtesy photo)
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AEDC engineers team with local business, UTSI to apply optical flow visualization to jet engine testing

From left, Theron Price, a doctoral candidate at University of Tennessee Space Institute (UTSI), and Dr. Phil Kreth, an assistant professor with UTSI, work with the retroreflective shadowgraph system that was demonstrated at UTSI within the confines of Arnold Air Force Base, Tenn., Feb. 17, 2022. (Courtesy photo)
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Melissa Tate becomes first female McKinley Climatic Laboratory site director

Melissa Tate, lead engineer and deputy of the Propulsion Test Branch, Test Division, Arnold Engineering Development Complex, stands outside the Engine Test Facility at Arnold Air Force Base, Tenn, March 1, 2022. (U.S. Air Force photo by Deidre Moon)
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Spring prescribed fire season is approaching at Arnold AFB

Pictured is a prescribed fire, or controlled burn, at Arnold Air Force Base. Prescribed fire is the most efficient and economical tool when managing natural ecosystems, allowing land managers to alter and improve the native ecosystems without utilizing more costly methods such as bush hogging, under brushing, and herbicide applications. (Courtesy photo)
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Junior Force Council Booster Club’s Thanksgiving Food Basket Program has most successful year yet

Reggie Floyd, Arnold Engineering Development Complex team member, carries baskets of food items Nov. 19, 2021, donated as part of the Junior Force Council Booster Club's Thanksgiving Food Basket program at Arnold Air Force Base, Tenn. Five cars were loaded with the 62 baskets collected and then taken to Deerfield Elementary. (U.S. Air Force photo by Deidre Moon)
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Junior Force Council Booster Club’s Thanksgiving Food Basket Program has most successful year yet

A total of 62 food baskets are seen here in the chapel Nov. 19, 2021, at Arnold Air Force Base, Tenn., which makes 2021 the most successful year for the Arnold Junior Force Council Booster Club’s Thanksgiving Food Basket Program, which provides food baskets for Coffee County families in need of Thanksgiving meals. This beats the previous record of 51 food baskets donated in 2018. (U.S. Air Force photo by Deidre Moon)
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Junior Force Council Booster Club’s Thanksgiving Food Basket Program has most successful year yet

As part of the Junior Force Council Booster Club’s Thanksgiving Basket Program, Arnold Engineering Development Complex team member Ashley Rose-Nalin helps load baskets Nov. 19, 2021, at Arnold Air Force Base, Tenn. With the generosity of the workforce at Arnold, 62 baskets were provided this year to students at Deerfield Elementary in Manchester. (U.S. Air Force photo by Deidre Moon)
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Junior Force Council Booster Club’s Thanksgiving Food Basket Program has most successful year yet

Arnold Engineering Development Complex team members Paula Lyle and Seth Markum organize food items donated to the Junior Force Council Booster Club’s Thanksgiving Food Basket Program, Nov. 19, 2021, at Arnold Air Force Base, Tenn. (U.S. Air Force photo by Deidre Moon)
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Junior Force Council Booster Club’s Thanksgiving Food Basket Program has most successful year yet

Arnold Engineering Development Complex team member Joel Nalin assists with loading food baskets Nov. 19, 2021, at Arnold Air Force Base, Tenn., as part of the Arnold AFB Junior Force Council Booster Club's annual Thanksgiving Food Basket program. The baskets were taken to Deerfield Elementary to provide less fortunate students and their families with a Thanksgiving meal. (U.S. Air Force photo by Deidre Moon)
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Junior Force Council Booster Club’s Thanksgiving Food Basket Program has most successful year yet

Adam Moon, Junior Force Council Booster Club member, loads baskets of food donations for the club’s Thanksgiving Basket Food Program into the bed of a truck Nov. 19, 2021, at Arnold Air Force Base, Tenn. The food baskets were delivered to Deerfield Elementary in Manchester to provide Thanksgiving meals to children in need. (U.S. Air Force photo by Deidre Moon)
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