Airman 1st Class Ethan Short, an aircraft structural maintainer with the 1st Special Operations Maintenance Squadron, sprays primer onto a CV-22 Osprey propeller at Hurlburt Field, Fla., March 29, 2017. The primer has corrosion preventive qualities and gives the paint a surface to adhere to. (U.S. Air Force photo by Airman 1st Class Isaac O. Guest IV)