Tech. Sgt. Tyler Wineman sits inside a Research Altitude Chamber during an oxygen system test at Wright-Patterson Air Force Base, Ohio, April 15, 2022. The chamber is one of three at the base that were certified in March for manned research up to 50,000 feet, a benchmark found nowhere else in the Department of Defense. Wineman is an aircrew flight equipment research technician assigned to the 711th Human Performance Wing, the Air Force Research Laboratory unit that operates the chambers. (U.S. Air Force photo by Jason Schaap)
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