Missouri Army National Guard Staff Sgt. Brandon Isabell, a crew chief, left, Chief Warrant Officer 4 Marcus Moore, a standardization instructor pilot, middle, and Chief Warrant Officer 5 Robert Moore, a standardization instructor pilot, all assigned to the 1-135th Attack Reconnaissance Battalion Army Aviation Support Facility #1, perform pre-takeoff inspections on a UH-60 Black Hawk at Whiteman Air Force Base, Mo., April 1, 2016. The Black Hawk is a utility helicopter capable of performing search and rescue operations and medical evacuations, and carrying external loads, cargo and passengers. (U.S. Air Force photo by Airman 1st Class Michaela R. Slanchik)