U.S. Air Force Tech. Sgt. John Richman, a 492nd Special Operations Training Group Detachment 2 loadmaster, straps a thermal blood transport box in a modified EC-130J Commando Solo during Operation Blood Rain at Eglin Air Force Base, Florida, Aug. 5, 2021. Operation Blood Rain is a research project in support of United States Special Operations Command, testing the safety of blood after it has experienced environmental and gravitational forces during the air drop, and assesses its feasibility for transfusion in a patient. (U.S. Air Force photo by Senior Airman Blake Wiles)