U.S. Air Force Maj. Catherine Olszewski, a 417th Flight Test Squadron pilot, flies a modified EC-130J Commando Solo during Operation Blood Rain near Eglin Range, 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)