Students from Camp Humphreys Middle/High School receive hands-on training about the mission and history of four Army helicopters Oct. 30, 2014, at Nightmare Ramp on Desiderio Airfield here. The students were split into four groups and took 15 minute turns at an OH-58 Kiowa, CH-47 Chinook, UH-60 Black Hawk and AH-64 Apache.