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Inflight physiologic monitoring systems [SPYDR] light up and prepare to collect physiological data in flight with the 85th Test and Evaluation Squadron at Eglin Air Force Base, Florida, August 6, 2024. The human performance testing focused on analyzing the effects of long duration flights on aircrew performance, gathering real-time data directly from pilots before, during and after flight. (U.S. Air Force photo by 1st Lt. Rebecca Abordo)