Tupolev is a Russian aerospace and defence company headquartered in Moscow. Known officially as Public Stock Company Tupolev it is the successor of the Tupolev OKB or Tupolev Design Bureau (OKB-156 design office prefix Tu) headed by the Soviet aerospace engineer A.N. Tupolev. The company celebrated its 80th anniversary on October 22 2002. The Russian government is planning to merge Tupolev with Mikoyan Ilyushin Irkut Sukhoi and Yakovlev as a new company named United Aircraft Corporation.