This was primarily due to the emergence of sea-based nuclear missiles, which turned submarines into strategic weapons.
The appearance of nuclear power plants on submarines has greatly increased their autonomy, cruising range, underwater speed and, as a consequence, the severity of the threat they create.
In addition, starting from a cold state took 5–10 minutes for the GTU compared to the several hours required for the STU.
Each complex consisted of a two-boom launcher ZIF-101, a Yatagan control system and a magazine with two rotating drums for 8 V-600 missiles each.
[5] Odaryonny was laid down on 22 January 1963, and launched on 11 September 1964 by Zhdanov Shipyard in Leningrad.