Paltus-class submarine
From Infogalactic: the planetary knowledge core
The Paltus Class submarine is a Russian special purpose mini-submarine[1] of project 1851.1. Two boats were completed "AS-21" and "AS-35" as a follow up of the single "X-Ray" class boat "AS-23" (Project 1851). They are both part of the 29th special submarine squadron at Olenya Guba.
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