The Project 10590 has always interested me since I first came across it. Few details are known, the project is estimated to date back to around 1985 and was an icebreaker guard ship intended for the KGB Border Guard. It is sometimes referred to as an ice patrol rescue vessel, but seems far more oriented to patrol than rescue duties. Its weapons and sensor fit is similar to the Project 1153.5 'Krivak III' built for the Border Guards around the same time; an AK-76 gun, 4x 30mm AK-360, 2x RBU-6000, 2x5 533mm torpedo tubes, 1x Osa ('Gecko') SAM launcher and 1x Kamov Ka-27 helicopter.
The drawing is based on only two sources; a line drawing originally from A.N. Sokolov's book and photograph of the official model of the design. The Sokolov drawing was very basic and incorrect in several ways compared to the model so has only been used as a basis with details taken from the model. Dimensions are unknown so the length is estimated from components etc. and may only be 90% accurate.