As for earlier reports, Leopard was supposed to return to the ranks in 2018. Thus, the submarine’s delivery faced the one-year extension.
Modernization of the 3-generation attack subs includes renovation of weapon systems, radio electronics and sonars. In particular, Leopard and Volk will be capable to launch Caliber cruise missiles. According to Izvestia, combat features of these subs after upgrading will reach parameters of Project 885 Yasen fourth-generation submarines.
"I doubt they might be advanced up to the Yasen level. Project 885 is a substantive breakthrough in Russian submarine industry. It is a great challenge to improve the previous generation subs up to this kind of standards. If they succeed – well done then", shared Andrey Nikolayev, an ex-submariner and founder of www.deepstorm.ru.As for the expert, such delay in delivery of the submarines is accounted for the shipyard’s heavy workload. Hopefully, while the technologies are mastered on Leopard, further subs would be upgraded faster, Nikolayev added.
K-328 Leopard nuclear-powered attack submarine was built by Sevmash Shipyard and commissioned in 1992. In 2011, the sub was docked at Zvezdochka for interim overhaul and in-depth modernization.
Her sister ship, K-461 Volk, joined the Russian Navy a year earlier, in 1991. The sub arrived at Zvezdochka in the summer 2014. Initially, the retrofitting was planned to finish in 2017.