Russian submarine Imperator Aleksandr III

Imperator Aleksandr III (Император Александр III) is a Borei-class nuclear-powered ballistic missile submarine of the Russian Navy. The submarine is named after Alexander III of Russia and was launched on 29 December 2022.^[2][3][4][5]

Imperator Aleksandr III in 2024
History
Russia
Name	Imperator Aleksandr III
Namesake	Alexander III of Russia
Builder	Sevmash
Laid down	18 December 2015
Launched	29 December 2022
Commissioned	11 December 2023[1]
Status	In service
General characteristics
Type	Borei-class submarine
Displacement	14,720 t (14,488 long tons) surfaced 24,000 t (23,621 long tons) submerged
Length	170 m (557 ft 9 in)
Beam	13.5 m (44 ft 3 in)
Draught	10 m (32 ft 10 in)
Propulsion	1 × OK-650B nuclear reactor 1 × AEU steam turbine 1 shaft
Speed	25 knots (46 km/h; 29 mph)
Complement	130 officers and men
Electronic warfare & decoys	RIM HAT, SNOOP HALF ESM
Armament	16 × R-30 Bulava SLBMs 6 × (21 in (533 mm) torpedo tubes) to fire a variety of appropriately sized weapons RPK-2 Vyuga anti-submarine missile

Service history

The boat was reported to be nearing the conclusion of its state sea trials as of November 2023.^[6] She entered service on 11 December 2023.^[7]

After the completion of testing in the Arctic Ocean, Imperator Aleksandr III joined the Pacific Fleet in September 2024. In the summer of 2025 it carried out a three-month deployment in the Pacific Ocean.^[8]