Event Brief
Typhoon-class SSBN could stay under Arctic ice 120 days
By The BriefBrief · Sources (1)
Filed: Sep 11, 2026 at 8:00 AM ET
Summary: The Soviet Union’s Typhoon-class ballistic missile submarine (Project 941/Akula) displaced about 48,000 tons submerged and was about 175 meters long. It carried 20 R-39 missiles with up to 10 warheads each and was designed to remain under Arctic ice for 120 days without surfacing, with internal space including a heated seawater pool, sauna, gym, and solarium. Six were built; the last was decommissioned on 6 February 2023.
WHO: Soviet Navy; Sevmash yard (Severodvinsk)
WHAT: Typhoon-class SSBN design details: 120-day Arctic-ice endurance and internal facilities
WHEN: Sep 11, 2026
WHERE: Severodvinsk, Russia
WHY: The article describes the submarine’s design and operational endurance, culminating in the decommissioning of the last vessel.
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