Russian Navy Baltic Fleet Type 677 Lada class (H02) conventional diesel-electric submarine (SSK) B-585 "Khronstadt" departed Admiralty shipyard during the forenoon, 13 May 2022 for unidentified activity.
|T677 B-585 "Khronstadt" seen at Admiralty shipyard|
This latest underway period, which is expected to last around 10 days, is likely an INDEX certification cruise which may include onboard system calibration and/or defect rectification coupled with crew proficiency training. Whilst it could be a further sonar calibration run this is thought to be less likely due to the anticipated duration.
B-585 "Khronstadt" was last noted active conducting sonar calibration trails in the Gulf of Finland, 4-8 May 2022 and is expected to join the Russian Navy Baltic Fleet mid to late 2022.