Instrumentation technicians – the ones behind the scenes of testing at Arnold
Teddy Beddingfield, an instrumentation technician for the von Kármán Facility at Arnold Air Force Base, checks one of the data panels in Wind Tunnel A. (U.S. Air Force photo by Deidre Ortiz)

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Photo by: Deidre Ortiz |  VIRIN: 180717-F-AU274-002.JPG