https://www.naval-technology.com/news/newsadmiralty-shipyards-launches-russian-navys-new-varshavyanka-class-submarine-4564458/
Admiralty Shipyards launches Russian Navy’s new Varshavyanka-class submarine - Naval Technology
Apr 28, 2015 - Admiralty Shipyards has held a ceremonial launch for a new Varshavyanka-class diesel-electric submarine in St Petersburg, Russia.
admiralty shipyardslaunchesrussiannewvarshavyanka