Changjin Air Force BaseChangjin-up Air Force Base is a military airport in Changjin, South Hamgyong, North Korea.FacilitiesThe airfield has a single concrete runway, 16/34, which measures 9170 x 203 feet. It has a full-length offset taxiway at approximately 5.8 degrees off the runway heading, leading to dispersal and underground facilities. Where a squadron of IL-28 Russian jet bombers are based.