As in the case of its contemporaries, the MiG-23 and Su-17 projects, the advantages of variable-sweep wing (or "swing wing") seemed attractive, allowing a combination of short take-off performance, efficient cruising, and good high-speed, low-level flight. The result was a new swing wing aircraft named "Samolyot 145" ("Aeroplane 145"), derived from the Tupolev Tu-22, with some features borrowed from the abortive Tu-98. The Tu-22M was based on the Tu-22's weapon system and used its Kh-22 missile. The Tu-22M designation was used to help get approval for the bomber within the Soviet military and government system.