USS Triton (SSRN-586)

USS Triton (SSRN-586) was a unique nuclear-powered submarine of the United States Navy, distinguished as the largest, most powerful, and most expensive submarine of its era. It was the sole vessel of its class, purpose-built as a radar picket submarine to support carrier task forces by providing early warning of Soviet air attacks. The submarine achieved enduring fame by executing the first submerged circumnavigation of the Earth during its shakedown cruise, a historic voyage codenamed Operation Sandblast.

Design and construction

The design for the vessel was authorized by the United States Congress in 1955, driven by the Cold War requirement for a dedicated radar picket platform. Constructed at the General Dynamics Electric Boat yard in Groton, Connecticut, its keel was laid in May 1956. Its double-hulled configuration, with a distinctive sail housing two periscopes and extensive electronic masts, was revolutionary. The submarine's immense size was necessitated by its dual S4G reactor propulsion plant and the sophisticated AN/BPS-2 air search radar system installed in a large, raised radome aft of the sail. It was commissioned in November 1959 under the command of Captain Edward L. Beach Jr., a decorated World War II submarine officer and author.

Operational history

Following its historic shakedown cruise, the submarine's primary operational role was as part of the Atlantic Fleet. It served on patrols as a radar picket, monitoring potential Soviet Air Force threats to U.S. naval formations in the North Atlantic. However, the rapid advancement of over-the-horizon radar and the deployment of airborne early warning aircraft like the Grumman E-2 Hawkeye quickly rendered its specialized mission obsolete. Consequently, the vessel was redesignated as an attack submarine (SSN-586) in 1961 and spent much of the remainder of its service in training and secondary roles, including serving as the flagship for the Commander, Submarine Force, U.S. Atlantic Fleet.

Nuclear propulsion and capabilities

The submarine was powered by two separate S4G pressurized water reactors, a unique design feature that provided immense power and redundancy. This propulsion plant enabled a submerged speed in excess of 27 knots and, critically, provided the virtually unlimited endurance required for its global voyage. Its engineering plant was a direct predecessor to systems used on later *Sturgeon*-class submarines. The vessel's large interior accommodated a crew of 172 men for extended patrols and housed advanced sonar suites and six torpedo tubes for self-defense, though its primary armament was its electronic surveillance equipment.

Circumnavigation voyage

In February 1960, under orders from the Chief of Naval Operations, Arleigh Burke, the submarine embarked on Operation Sandblast. Departing from St. Peter and St. Paul Rocks in the Atlantic Ocean, it followed the historic route of Magellan's expedition entirely submerged. The voyage traversed the Strait of Magellan, crossed the Pacific and Indian Oceans, rounded the Cape of Good Hope, and returned to the United States at Delaware Bay 60 days later. The mission, commanded by Captain Beach, proved the strategic mobility of nuclear-powered forces, collected valuable oceanographic and gravimetric data, and served as a major propaganda victory during the Space Race.

Decommissioning and legacy

With its specialized role obsolete and facing high maintenance costs for its complex dual-reactor plant, the submarine was decommissioned in May 1969 at the Norfolk Naval Shipyard. It was the first U.S. nuclear submarine to be taken out of service. After decades in the reserve fleet, its hull was recycled via the Ship-Submarine Recycling Program at the Puget Sound Naval Shipyard in 2009. The submarine's sail and periscopes are preserved at the USS Triton Submarine Memorial Park in Richland, Washington. Its pioneering circumnavigation remains a landmark achievement in naval history, demonstrating the transformative capabilities of nuclear propulsion and cementing its place in the legacy of the Silent Service.

Category:Submarines of the United States Category:Radar picket submarines Category:General Dynamics Electric Boat ships Category:1959 ships Category:Cold War submarines of the United States