
By June 2020, one source reported it "in service", though this appears to have been inaccurate. In the course of 2019, the sub was to complete its fitting out, nuclear reactor testing and sea worthiness trials. The commander of the ship at that time was Captain 1st rank Anton Alyokhin. On April 23, 2019, the Belgorod was taken out of the covered dry dock and put afloat. The submarine was planned for commissioning in the Navy in 2018, and a crew was formed once again in November of that same year. On December 20, 2012, this specification received the official designation Project 09852.

In early 2012, the Commander-in-Chief of the Russian Navy, Admiral Vladimir Sergeyevich Vysotsky stated that Belgorod would be completed as a "special projects" vessel. In 2009, re-designing the submarine and arming it with the cruise missiles originally developed for the Project 885 Yasen-class submarines was considered. The Ministry of Defence considered other options to finish the submarine, including selling it to the Indian Navy, which would have financed completion of the vessel. By that time, Belgorod was about 80% complete. The construction of the Belgorod was included in the 2006 investment plan of the Ministry of Defence, but during a visit at the shipyard by Minister of Defence Sergei Ivanov on July 20, 2006, came the news that the decision has been made not to commission the submarine in the Russian Navy. Sevmash, on its own initiative, continued construction at a slow pace. The 100 million rubles provided by the Ministry of Defence was insufficient, and Sevmash was forced to use its own financial resources to make up for the deficit. By Decemthe hull was mostly complete, missing its powerplant, equipment and missile silos. The loss of Belgorod 's sister ship, the Kursk, in 2000 led to the decision to resume construction of Belgorod to replace Kursk, upgraded to Project 949AM specifications. On January 22, 1998, the crew was disbanded and the unfinished hull was mothballed. Осипенко), but in 1997, construction was put on hold due to the severe economic crisis after the collapse of the Soviet Union (with the submarine three-quarters finished), mainly for financial reasons. In 1995, crew training began at the Obninsk-based 510th Naval Training Center, named after L.

On April 6, 1993, submarine 664 received the name Belgorod after the Russian city with that name and the tactical designation K-139. The submarine's construction was originally laid down on Jat the Severodvinsk Shipyard as pennant number 664 of the Oscar II class cruise missile submarines. The Belgorod will reportedly be the first submarine to utilize the Status-6 Oceanic Multipurpose System. The submarine was delivered to the Russian Navy on 8 July 2022. It tested at sea in 1H2022 and was commissioned by the Russian Navy in July 2022. The K-329 Belgorod, along with the Status-6 Oceanic Multipurpose System, was one of the last weapons systems presented by Russian President Vladimir Putin during his annual speech on March 1, 2018. Due to chronic underfunding, its construction was suspended then resumed at a low rate of progress before the ship was redesigned to become a unique vessel - the first Russian fifth-generation submarine, according to the Ministry of Defence. It was originally laid down in July 1992 as a Project 949A cruise missile submarine ( NATO designation Oscar II class), but later was redesigned and the partly built hull was reconfigured as a special operations vessel, able to operate unmanned underwater vehicles. K-329 Belgorod ( Russian: БС-329 «Белгород») is a modified design of the Oscar II class ( NATO designation) Russian nuclear submarine.

Unmanned underwater vehicle submarine mothership, Status-6 Oceanic Multipurpose System platform Ģ pressurized water reactor OK-650M.02 nuclear reactors, 2 × steam turbines delivering 190 MW (250,000 shp) to two shaftsĥ00 to 520 m (1,640 to 1,710 ft) by various estimates
