Lance Cpl. Taylor A. Vollmer observes aircraft as his team prepares to take off for a Joint Terminal Attack Control training scenerio Dec. 15 at Marine Corps Base Camp Pendleton, California. A JTAC is when combat aircraft engage in close air support and other offensive air operations from a forward position. Vollmer, a Bakersfield, California, native, is a crew chief with Marine Light Attack Helicopter Squadron 169, Marine Aircraft Group 39, 3rd Marine Aircraft Wing. - Lance Cpl. Taylor A. Vollmer observes aircraft as his team prepares to take off for a Joint Terminal Attack Control training scenerio Dec. 15 at Marine Corps Base Camp Pendleton, California. A JTAC is when combat aircraft engage in close air support and other offensive air operations from a forward position. Vollmer, a Bakersfield, California, native, is a crew chief with Marine Light Attack Helicopter Squadron 169, Marine Aircraft Group 39, 3rd Marine Aircraft Wing.