First Lt. Harold Engler, 34th Bomb Squadron weapon systems officer, places a helmet on Alexia Winifred-Morris during the 2016 Aviation Day at the Discovery Center in Pierre, S.D., Jan. 27, 2016. Engler and four other aircrew members participated in the event, bringing helmets, flight suits and harnesses for the children to try on while learning about their job. (U.S. Air Force photo by Senior Airman Rebecca Imwalle/Released)