Suchoj Su-30 was born as a two-seat, school-fighting version of a successful Su-27 air advantage aircraft. Due to its dimensions and method parameters, it was considered that this device would besides be able to execute another role. Paradoxically, it was not initially thought of creating a multitasking aircraft in this way, but of a flying command post being a specialized interceptor. The second associate of the device was to guide MiG-31 interceptors, in contrast to which the alleged Su-27PU ("harvesting point" or "command point"), was to be characterized by the greater dimension of flight obtained by the usage of a refueling probe in the air. In a planet in which the russian Union would not fall, the household of Su-27 descendants would so most likely consist of: a interceptor fighter (Su-30), an on-board fighter (Su-33), a front bomber (Su-34) and a more advanced aerial advantage aircraft (Su-35 or Su-37).