Members of the 22nd Maintenance Squadron clear ice from a KC-135 Stratotanker before flight Dec. 3 2020 at McConnell Air Force Base, Kansas. De-icing must happen pre-flight in order to prevent ice buildup on the wings. Ice increases drag on the aircraft requiring significantly more power to maintain airspeed and altitude.( U.S. Air Force photo by Airmen 1st Class Zachary Willis)