High Altitude Parachute Class PB
Senior Airman Jeylyn Capdevilla lectures students about the physical effects of the high altitude chamber Nov. 2, 2010, at the aerospace physiology building at Shaw Air Force Base, S.C. The high altitude parachute class focuses on human performance at high altitudes and high stress levels. Students take this class before freefall school and as a refresher course every five years. Airman Capdevilla is an aerospace and operational physiologist technician with the 20th Aerospace Medicine Squadron. (U.S. Air Force photo/ Airman 1st Class Tabatha L. Duarte)