Research Flight Air Force Maj. Catherine Olszewski flies a modified EC-130J during Operation Blood Rain near Eglin Air Force Base, Fla., Aug. 5, 2021. Blood Rain is a U.S. Special Operations Command research project testing the safety of blood for transfusion after it has experienced environmental and gravitational forces during an airdrop. SHARE: Download: Full Size (4.19 MB) Tags: special operations command, science, air force, health, blood rain Credit: Air Force Senior Airman Blake Wiles VIRIN: 210805-F-NS874-1028A.JPG Photo Gallery