Fly, rinse, repeat
A KC-135 Stratotanker goes through a birdbath Aug. 22, 2016, at Kadena Air Base, Japan. The official name for the birdbath is the aircraft rinse system. The birdbath has a rinse time of 90 seconds, ensuring the aircraft is properly washed. (U.S. Air Force photo by Airman 1st Class Lynette M. Rolen)