U.S. Air Force Staff Sgt. John Patrick Thorpe, aerospace and operational physiologist technician from Beale Air Force Base, Calif., provides instructions to Airmen prior to their high altitude training test inside a high-altitude chamber April 4 at Offutt Air Force Base, Neb. This group of Airmen was part of the chamber’s “fini-flight,” which marked the end of more than 50 years the chamber has simulated high altitude conditions for flyers across the U.S. and foreign military. It was built in 1957 out of World War II battleship steel.
U.S. Air Force Photo by Josh Plueger
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