Airplanes can have one, two, three, four, six, or even more engines. Ukraine's famous Antonov An-225 Mriya had six engines (it also set many world records), while the B-52 Superfortress has eight. However, four engines are typically enough to power the largest military aircraft. Large four-engined military aircraft flown today are generally built by the United States, European, and Soviet/Russian manufacturers (many of China's aircraft were Soviet/Russian aircraft built under license).