Lance Cpl. Taylor A. Vollmer studies a manual for the

Lance Cpl. Taylor A. Vollmer studies a manual for the the M134 GAU-17 Gatling Gun in preparation for a Joint Terminal Attack Control training scenario Dec. 15 at Marine Corps Base Camp Pendleton, Calif. A JTAC is when combat aircraft engage in close air support and other offensive air operations from a forward position. Vollmer, a native of Bakersfield, California, is a crew chief with Marine Light Attack Helicopter Squadron 169, Marine Aircraft Group 39, 3rd Marine Aircraft Wing. (Marine Corps photo by Cpl. April L. Price/ Released)