The Iranian diesel-electric submarine (SSK) "Varshavyanka" of Russian-made Project 877EKM was not damaged after the strike on the naval base in Bandar Abbas. This was reported by the American outlet The War Zone, citing satellite imagery.
Project "Varshavyanka" is the export designation for the SSKs of Projects 877 and 636, developed in the USSR and modernized in Russia. In NATO they were given the designation Kilo.
Iran received such submarines in the 1990s. They officially belong to the "Paltus" family (877) and its further development — 636. The name "Varshavyanka" became established as an unofficial common name for the export versions.
Submarines of this type are distinguished by a low noise level, can employ heavy torpedoes and lay mines. Thanks to their stealth, they are often called "black holes" in the theater of operations.
The submarines are about 74 m long, can carry 18 torpedoes and remain underwater for several days