Length: 163.5 m Beam: 19.3 m Displacement: 7640ton Following Udaloy's commissioning, designers began developing an upgrade package to provide more balanced capabilities. Udaloy II was designed as a multipurpose warship could perform aerial defence, anti-submarine and anti-surface ship warfare-- intended to be the Russian counterpart to the American Arleigh Burke class ships. The Udaloy-II is modified by the replacement of the SS-N-14 by the SS-N-22, reflecting a change in emphasis from ASW to anti-shipping. Other changes include an improved self defense capability with the addition of the gun/SAM CIWS systems，the 533 mm torpedoes tubes, a twin 130mm gun, the RBU-12000 anti-torpedo system and several anti-aircraft systems. It was equipped with more capable sonar, an integrated air defense fire control system.