Poseidon is the largest torpedo ever developed in any country. At around 2 meters (6.5 ft) in diameter and over 20 meters (65 ft) long, it is approximately twice the size of submarine launched ballistic missiles (SLBMs) and thirty times the size of a regular ‘heavyweight’ torpedo.
On 20th February 2019 Russian president Vladimir Putin announced that the first submarine slated to carry Poseidon would be launched in Spring 2019. This is most likely to refer to the Pr.09852 Belgorod which had been expected to be launched in 2018. The same day the Russian Ministry of Defense released a video (Youtube) of the Poseidon being tested.
Das U-Boot „Chabarowsk“, der zweiten Träger des Poseidon-Systems, wird der russischen Marine frühestens im Jahr 2021 zur Verfügung stehen. Bisher war man davon ausgegangen, dass das U-Boot in diesem Sommer zu Wasser gelassen wird und seine zweijährige Erprobung beginnt. In einem auf Twitter veröffentlichten Artikel der russischen Nachrichtenagentur Tass stellt Mikhail Budnichenko, Generaldirektor des russischen Werftkomplexes Sevmash, nun klar, dass sich das Projekt verzögert.
Russia’s first submarine equipped to launch the new Poseidon nuclear-armed underwater vehicle/torpedo will enter fleet service next year, according to state news agency TASS.
Russia has launched its first submarine designed to launch the new Poseidon nuclear armed unmanned underwater vehicle (UUV) at the Sevmash shipyard in Severodvinsk.