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Submarine Isolation and Underwater Signaling
During the Cuban Missile Crisis in October 1962, Soviet Foxtrot-class submarines sailed toward Cuba equipped with nuclear-tipped torpedoes. Deep underwater, radio signals could not penetrate the ocean depths while submerged, leaving submarine crews completely cut off from Moscow for days. Without reliable communication, commanders relied entirely on local sensor data, sonar pings, and their own judgment to interpret political and military developments above.
To force the submerged vessels to surface, the United States Navy dropped practice depth charges—small explosive charges designed to produce sound without causing lethal damage. However, inside the hot, poorly ventilated Soviet submarine B-59, the deafening blasts sounded like an active attack, leading many on board to believe full-scale hostilities had already begun.
The Sargasso Sea Standoff
The incident occurred on October 27, 1962, in the Sargasso Sea near Cuba. American warships had surrounded B-59, using active sonar and signaling explosives to force the vessel to the surface. Trapped underwater for days with failing air systems and temperatures exceeding 100 degrees Fahrenheit, the crew faced extreme physical and psychological strain.
Misconceptions About the Launch Decision
A common myth is that a single submarine captain possessed sole authority to launch a nuclear weapon. On B-59, launching the nuclear torpedo required unanimous authorization from three senior officers on board: Captain Valentin Savitsky, political officer Ivan Maslennikov, and Commodore Vasili Arkhipov, who was second-in-command of the submarine brigade.
While the captain and political officer both favored launching the nuclear weapon in response to the perceived attack, Arkhipov stood firm in his refusal. His decision to withhold approval forced the submarine to surface and identify itself, successfully avoiding a catastrophic nuclear escalation.
Quick facts
- Vasili Arkhipov was one of three senior officers aboard the Soviet submarine B-59 required to authorize a nuclear launch.
- The United States Navy used non-lethal practice depth charges to signal submerged Soviet submarines to surface.
- Submerged submarines in 1962 could not receive standard radio broadcasts without surfacing or extending an antenna.
- Temperatures inside the Foxtrot-class submarine B-59 exceeded 100 degrees Fahrenheit during the standoff due to cooling failures.
Frequently asked questions
The vessel was B-59, a Soviet Foxtrot-class diesel-electric submarine deployed to the Caribbean during the Cuban Missile Crisis.
No, American naval forces were unaware that B-59 was armed with a nuclear-tipped torpedo when they dropped practice depth charges to force it to surface.
Because Commodore Vasili Arkhipov was aboard B-59 as commander of the submarine detachment, his approval was required alongside the captain and the political officer.
