U.S. Navy Aviation Support Equipment Technician Second Class Eric Stark, right, 33rd Maintenance Squadron Aerospace Ground Equipment, discusses some of the features of an electric conditioned air cart with Aviation Support Equipment Technicians First Class Kunthea Sam, left, and Jerimiah Appel, center, both assigned to the USS Abraham Lincoln (CVN-72), during "Phase 1" initial training Aug. 9, 2017, at Eglin Air Force Base, Fla. Because many of the machines used to support the F-35 are unique to the aircraft, this is the first time they are seeing the equipment. They will use what they learn here when F-35Cs land on their ship and to train other maintainers in their unit. (U.S. Air Force photo by Staff Sgt. Peter Thompson)