C-130J Propulsions shop
Greg Henley, Dowty Propellers field service engineer, installs propeller blades onto a hub Sept. 8, 2016, in the C-130 Propulsions shop at Little Rock Air Force Base, Ark. The blades are mounted onto a propeller hub, the central portion of the propeller that holds the blades in place. (U.S. Air Force photo by Kevin Sommer Giron)