|Name||No||Yard No||Builder||Laid down||Launched||Comp||Fate||Modification|
|Б-585 Санкт-Петербург [B-585 Sankt-Peterburg]||477||01570||Admiralteyskiye verfi, St. Petersburg||26.12.1997||28.10.2004||22.4.2010||in service (2019)||Project 677|
|Б-586 Кронштадт [B-586 Kronshtadt]||01571||Admiralteyskiye verfi, St. Petersburg||28.7.2005||20.9.2018||2020||building (2019)||Project 06671|
|Б-587 Великие Луки [B-587 Velikiye Luki] (ex-Б-587 Севастополь [B-587 Sevastopol'])||01572||Admiralteyskiye verfi, St. Petersburg||10.11.2006||2019||2021||building (2019)||Project 06671|
|Displacement standard, t||
|Displacement normal, t||
1450 / 2100
|No of shafts||
2 diesel-generators, 1 PG-102M electric motor
|Power, h. p.||2700|
|Max speed, kts||
11 / 17
|Endurance, nm(kts)||4000(7) / 650(3)|
6 - 533 TT (bow, 16 or 22 mines)
MRK-50 Kaskad radar, Lira sonar suite, ECM, Litiy CCS
|Diving depth operational, m||
First unit was ordered as technology demonstrator for larger export Amur-1650 design. Sea trials of leading submarine delayed till 2012 and proven unsuccessful. Construction of later units was slowed. Now construction of 2nd and 3rd boats was delayed awaiting for ability of installing new air-independent propulsion system.
Submarines are single-hulled, with sail-mounted bow planes and cruciform stern control surfaces. Said to be 8-10 times quieter than project 877 submarines, as example they have brushless generators to reduce noise.
No significant events.