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USS George Washington (SSBN-598)


USS George Washington (SSBN-598) was the lead ship of the United States Navy's George Washington-class fleet ballistic missile submarines, commissioned on 30 December 1959 as the first operational U.S. submarine capable of launching submarine-launched ballistic missiles. Originally laid down on 1 November 1957 at the Division of in , as the attack submarine USS Scorpion (SSN-589), her hull was cut in two and a 120-foot missile compartment inserted midships to accommodate 16 A-1 ballistic missiles, after which she was renamed and redesignated SSBN-598. Launched on 9 June 1959, she represented a pivotal engineering adaptation of the Skipjack-class design to pioneer nuclear-powered strategic deterrence. The submarine's entry into service marked the inception of America's sea-based nuclear triad component, with her first successful missile launch from the Atlantic on 20 July 1960 and inaugural strategic deterrent patrol commencing later that year, establishing continuous submerged nuclear deterrence amid tensions. Over her 25-year career, George Washington conducted numerous deterrent patrols, underwent refueling and missile upgrades—including extensions to carry or systems in later overhauls—and exemplified the reliability of submarines in maintaining credible second-strike capability against Soviet threats. Decommissioned on 24 January 1985 at the , she was stricken from the the following year and subsequently dismantled, with her sail preserved as a historical artifact. Her legacy endures as the foundational vessel that shifted toward stealthy, survivable nuclear forces, influencing subsequent Ohio-class designs.

Design and Specifications

Technical Characteristics

The USS George Washington (SSBN-598) measured 381 feet 6 inches (116.3 meters) in overall length, with a beam of 33 feet (10.1 meters) and a draft of 28 feet 10 inches (8.8 meters). Its displacement was approximately 5,959 to 6,019 tons when surfaced and 6,709 to 6,888 tons when submerged. These dimensions reflected a design derived from the preceding Skipjack-class attack submarines, extended by the insertion of a 130-foot midships section to accommodate vertical launch tubes for missiles, prioritizing and submerged stability for strategic deterrence missions. Propulsion was provided by a single S5W pressurized-water , which generated steam to drive two geared turbines producing 15,000 shaft horsepower to a single five-bladed . This system enabled unlimited range at cruising speeds, constrained only by crew endurance and provisions, with reported maximum speeds exceeding 20 knots surfaced and 25 knots submerged—figures consistent with declassified performance estimates for the era's fleet ballistic missile submarines. The design emphasized quiet operation and reliability, incorporating lessons from earlier prototypes to minimize acoustic signatures critical for survivability in contested waters. The ship's complement totaled 12 officers and approximately 110 to 128 enlisted personnel per crew, utilizing a dual-crew (Blue and Gold) rotation to maximize patrol availability and operational tempo. features included bunks for all hands, facilities, and environmental controls suited for extended submerged deployments, supporting patrols lasting 60 to 90 days without surfacing. Test depth remained classified, but structural integrity was engineered for operational depths exceeding 800 feet, validated through post-construction trials.

Armament and Propulsion

The primary armament of USS George Washington (SSBN-598) consisted of sixteen vertical launch tubes for submarine-launched ballistic missiles (SLBMs), arranged in a single row amidships within an extended 130-foot missile compartment derived from modified Skipjack-class hull sections. Initially equipped with the A-1 variant upon commissioning in December 1959, each missile featured a two-stage motor, a range of approximately 1,200 nautical miles (2,200 km), and a single thermonuclear with a yield of around 600 kilotons; the A-1's inertial achieved a (CEP) of about 5-10 nautical miles. Subsequent refits during the 1960s upgraded the loadout to the longer-range A-3, extending operational reach to 2,500 nautical miles (4,600 km) with three independent reentry vehicles (MIRVs) for improved target coverage, while retaining the same tube configuration using steam-gas ejection for submerged launches. Secondary armament included six 21-inch (533 mm) forward torpedo tubes in the bow, capable of firing Mk 37 electric or , as well as Mk 57 or Mk 60 mines; total torpedo reload capacity was limited to approximately 12-14 weapons to prioritize missile storage and crew space in the ballistic missile role. No deck guns or anti-aircraft weapons were fitted, reflecting the submarine's emphasis on and strategic deterrence over surface engagement. Propulsion was provided by a single S5W pressurized-water nuclear reactor, developing thermal power to drive two geared steam turbines at 15,000 shaft horsepower (11,000 kW) connected to a single five-bladed propeller. This configuration yielded a surfaced speed of about 16-20 knots (30-37 km/h) and a submerged speed exceeding 20 knots (37 km/h), with unlimited range limited only by food supplies and a test depth of approximately 700 feet (213 m). The S5W design, shared with contemporaneous attack submarines, prioritized reliability and compactness for extended submerged patrols, enabling the vessel's displacement of roughly 5,960 tons surfaced and 6,700-6,710 tons submerged.

Construction and Commissioning

Keel Laying, Launch, and Trials

The construction of USS George Washington (SSBN-598), the of her class, incorporated an expedited design derived from the Skipjack-class hull, with the forward and aft sections originally intended for USS Scorpion (SSN-589) adapted by inserting a 130-foot midships compartment for 16 missile tubes. This modification addressed the urgent national priority for a sea-based deterrent during the , allowing the use of existing components while adding capability. The keel was laid down on 1 November 1958 at the Division of Corporation in , marking the formal start of assembly as SSBN-598 after the structural reconfiguration. The hull reached its full length of 381 feet through this splicing process, which was completed efficiently to meet accelerated timelines mandated by President Dwight D. Eisenhower's approval of the Fleet program. The submarine was launched on 9 June 1959, sponsored by Mrs. Olene A. McElroy, of Robert E. McElroy, in a ceremony highlighting the vessel's role as the U.S. Navy's first operational . Following launch, outfitting continued, including installation of the S3G and integration of the A-1 missile system, with final preparations for operational testing. Builder's sea trials commenced in November 1959 in , evaluating propulsion, submerged performance, and systems integration under the supervision of and personnel. These trials, including a documented run on 24 November 1959, confirmed the submarine's ability to achieve speeds exceeding 20 knots submerged and validated the stability of the modified hull form, paving the way for commissioning despite the novel design elements. No major deficiencies were reported that delayed delivery, reflecting the success of parallel development in missile and technologies.

Commissioning and Shakedown

The USS George Washington (SSBN-598) was commissioned on 30 December 1959 at , marking the entry into service of the United States Navy's first operational nuclear-powered . The ceremony was sponsored by Mrs. Ollie R. Anderson, wife of Robert B. Anderson, the Secretary of the Treasury. Command was divided between two crews from the outset, with Commander James B. Osborn leading the blue crew and Commander John L. From Jr. leading the gold crew, reflecting the submarine's design for continuous deterrent patrols. Following commissioning, the submarine conducted initial sea trials and shakedown operations to validate its nuclear propulsion, submerged capabilities, and integrated ballistic missile system. On 28 June 1960, under the blue crew, George Washington departed Groton for Cape Canaveral, Florida, where it loaded two Polaris A-1 missiles for testing. On 20 July 1960, it achieved a milestone by successfully launching the first Polaris missile from a submerged submarine over the Atlantic Missile Range, with the missile impacting 1,150 miles downrange; the launch was observed by Rear Admiral William F. Raborn, head of the Navy's Special Projects Office. The gold crew repeated the success on 30 July 1960, firing two additional Polaris missiles while submerged. Shakedown for the gold crew concluded on 30 August 1960 at Groton, after which the submarine prepared for full operational loading. On 28 October 1960, George Washington transited to , to receive its complete armament of 16 missiles. For its performance from initial trials through the July missile launches (9 June 1959 to 20 July 1960), the submarine was awarded the , recognizing the successful integration of its unprecedented fleet capability. These operations confirmed the vessel's readiness for strategic deterrence missions without reported major systemic failures.

Operational History as Ballistic Missile Submarine

Initial Deterrent Patrols

The USS George Washington (SSBN-598) commenced the U.S. Navy's inaugural ballistic missile submarine deterrent patrol on 15 November 1960, departing , armed with a full load of 16 A-1 missiles each capable of delivering a 600-kiloton over 1,200 nautical miles. This 66-day submerged mission to the North Atlantic validated the platform's and endurance, remaining fully submerged without surfacing or snorkeling, thereby establishing the feasibility of continuous sea-based nuclear deterrence independent of surface vulnerabilities. The patrol concluded successfully on 21 January 1961 upon arrival at , , where the Blue crew transferred operations to the Gold crew following post-patrol maintenance. These early operations built on prior submerged test launches of missiles from in July 1960, which had confirmed the system's reliability under fleet command observation. Subsequent initial patrols under the Gold crew, including the second commencing 14 February 1961 from New London and ending 25 April 1961 at , , extended the forward-deployed presence near potential adversaries, rotating crews to sustain operational tempo with minimal surface intervals. By mid-1961, the submarine had completed five such patrols, accumulating over 100,000 submerged miles and earning the for pioneering fleet deterrence.

Mid-Career Operations and Polaris Upgrades

Following the completion of its initial deterrent patrols from , , through 1964, USS George Washington entered an extensive overhaul at in , commencing in June 1964 after approximately 4.5 years of service and 15 patrols, during which it had steamed about 100,000 miles. This refit marked the submarine's first replacement, extending its unrefueled operational endurance beyond the limitations of the original core. The primary modifications focused on enhancing the Polaris ballistic missile system, upgrading from the A-1 variant (1,200-nautical-mile range) to the A-3 variant (2,500-nautical-mile range), which incorporated improved solid-propellant motors for greater accuracy and reach while maintaining the 16-missile capacity. Supporting changes included installation of a gas-steam missile ejection system in place of the compressed-air launchers, upgrades to the Mark 80 fire control system and Mark II inertial guidance platform, and enhancements to sonar arrays, navigation, communications, and hydraulic systems; habitability improvements, such as wider passageways and additional laundry facilities, were also implemented to sustain crew performance on extended patrols. The overhaul, lasting over a year, concluded in early 1966, enabling the submarine to reload with A-3 missiles and recommence operations. Post-refit, George Washington shifted to Pacific Fleet assignments, basing at and conducting nuclear deterrent patrols across the Pacific Ocean for over a , alternating and crews to maximize at-sea time and strategic coverage. These mid-career missions, leveraging the A-3's extended range, bolstered U.S. second-strike capabilities amid escalating tensions, with the contributing to the fleet force's expansion toward 28 A-3-equipped boats by 1967.

Collision with Nissho Maru

On April 9, , the USS George Washington (SSBN-598), a nuclear-powered , collided with the freighter Nissho Maru in the , approximately 110 nautical miles south-southwest of , . The submarine was operating at depth in poor weather conditions, including and rain, when its struck and ruptured the of the 2,350-ton cargo vessel, causing it to sink rapidly within about 15 minutes. The Nissho Maru had a of 15; two members—the , Taizo Noguchi, and the first officer—were killed, while the remaining 13 survived by taking to life rafts and were rescued approximately 18 hours later by destroyers. The submarine experienced a port roll upon impact and sustained minor damage to its sail but reported no injuries to its crew, no compromise to its nuclear propulsion system, and no issues with its 16 Polaris missiles. The George Washington surfaced briefly after the collision but, hampered by visibility and weather, did not immediately render assistance; its commanding officer, Captain Robert D. Woehl, later testified that he was initially unaware the freighter was sinking. The U.S. Navy notified Japanese authorities of the incident after a 36-hour delay, prompting criticism from Japanese officials and media over the submarine's detectability and the response timeline. A U.S. investigation, culminating in a report released on August 31, , attributed the collision to a combination of errors—such as inadequate surface search monitoring and failure to detect the freighter despite its visibility—and coincidental factors like the freighter's course changes in heavy weather. The accepted full responsibility, leading to Captain Woehl being relieved of command in May . Diplomatic tensions arose briefly, with seeking explanations through channels including U.S. Ambassador , but relations stabilized after the U.S. expressed regret and committed to procedural reviews for operations in . No radiation release or environmental impact from the submarine was reported.

Conversion and Service as Attack Submarine

Refit and Redesignation to SSN-598

Following the completion of her final deterrent patrols in 1981, USS George Washington underwent a refit to transition from her role as a to that of an , in accordance with U.S. adherence to the limits on launchers outlined in the unratified II (SALT II) treaty of 1979. The primary modifications involved offloading her sixteen A-3 missiles, disabling the missile launch tubes through physical alterations such as welding or sealing to render them inoperable, and recertifying the vessel for non-strategic operations. This process eliminated her strategic nuclear deterrence capability while preserving her and armament for conventional antisubmarine and roles. The refit was performed at facilities supporting her homeport operations, with the work focused on compliance verification rather than extensive structural redesign, given the submarine's original construction incorporated a Skipjack-class hull extended by a missile compartment plug. On November 21, 1981, USS George Washington was officially redesignated SSN-598, reflecting her altered configuration and allowing her continued service without counting against SALT II launcher limits. Some accounts associate the missile offload and full operational shift to SSN status with 1983, potentially reflecting phased implementation or final treaty compliance inspections, but primary decommissioning records confirm the 1981 redesignation date. Following the redesignation, the submarine returned to for attack submarine duties, leveraging her existing six forward and four aft torpedo tubes for Mark 48 torpedoes and other .

Final Deployments

After redesignation as an (SSN-598) in 1983 following the removal of its capability, USS George Washington conducted limited operations from its base at , , as part of the Pacific Fleet. These activities included routine missions, though specific patrol details remain sparse due to the vessel's age and impending retirement. In 1983, the submarine undertook its final major transit, departing eastward through the —the second of four such passages in its career—to rejoin the Atlantic Fleet at , for pre-decommissioning preparations. This relocation marked the end of its Pacific service and aligned with the Navy's phase-out of early George Washington-class hulls no longer suited for extended frontline duties. USS George Washington was decommissioned on 24 January 1985 after 25 years of service, having accumulated significant operational mileage but facing obsolescence in propulsion, sensors, and hull integrity compared to newer Los Angeles-class contemporaries. Its final deployments underscored the transitional role of converted SSBNs in bridging deterrence gaps during the early , prior to the full operationalization of Trident-equipped Ohio-class submarines.

Decommissioning and Legacy

Deactivation and Scrapping

The USS George Washington (SSBN-598) was decommissioned on 24 January 1985 following 25 years of service, marking the end of its operational lifecycle as part of the phased retirement of the George Washington-class submarines under considerations and fleet modernization. The decommissioning process included offloading its missiles at Naval Weapons Station , prior to transfer to the in , for inactivation. Stricken from the on 30 April 1986, the submarine remained in long-term storage at , awaiting disposal amid a backlog of nuclear-powered vessels requiring specialized handling. Deactivation involved defueling the , removal of hazardous materials, and preparation for environmental compliance under protocols. The reactor compartment was eventually transferred to the U.S. Department of Energy for monitored geological repository storage. Scrapping proceeded under the Navy's Ship-Submarine Recycling Program (SRP), a controlled dismantling process designed to recycle non-radioactive components while ensuring nuclear safety. The hull and superstructure were fully dismantled, with the effort completing on 30 September 1998 after over a decade in lay-up. Notably, the submarine's sail was preserved from scrapping and relocated for public display at the Washington State Veterans Home in Retsil, Washington, serving as a historical artifact of early nuclear deterrence capabilities.

Strategic Significance and Commemoration

The USS George Washington (SSBN-598) held pivotal strategic significance as the United States Navy's first operational ballistic missile submarine, commissioned on December 30, 1959, which introduced a survivable sea-based nuclear deterrent capability into the Cold War arsenal. This innovation, achieved by inserting a missile compartment into the modified hull of the earlier USS Scamp (SSN-588), enabled the submarine to carry and launch Polaris A-1 ballistic missiles from underwater, with the first successful operational launches occurring on July 20, 1960. By providing a second-strike option less vulnerable to preemptive attacks than land-based intercontinental ballistic missiles or bombers, SSBN-598 and its class bolstered the credibility of mutual assured destruction, contributing to nuclear stability and deterring Soviet aggression throughout the Cold War era. As the lead ship of the George Washington class, SSBN-598 exemplified the rapid technological leap in submarine propulsion and weaponry, influencing global strategic calculations by demonstrating the feasibility of submerged nuclear missile launches over 1,100 miles downrange. Its deployment shifted the balance of power, as the submerged launch capability rendered detection and targeting exceedingly difficult, thereby enhancing U.S. and arguably playing a key role in preventing escalation to nuclear conflict. The submarine's service underscored the importance of the sea-based leg of the , with its patrols ensuring continuous at-sea deterrence that complemented fixed-site vulnerabilities. In commemoration, the sail of USS George Washington (SSBN-598) is preserved as a plaque, symbolizing its groundbreaking role in naval and accessible to the public as a marker of peacetime service. Additionally, a plaque bearing the submarine's original designation was retained inside its forward escape hatch post-conversion, honoring its heritage as the pioneering vessel in fleet operations. These artifacts, along with recognition in naval museums and veteran associations, perpetuate the legacy of SSBN-598's contributions to strategic deterrence without fanfare, reflecting the classified nature of its patrols.

References

  1. [1]
    USS George Washington (SSBN-598)
    USS George Washington (SSBN-598) was laid down on 1 November 1957 at Groton, Conn., by the Electric Boat Division of General Dynamics Corp.; launched on 9 June ...
  2. [2]
    Navy Commemorates 50th Anniversary Of First SSBN Deterrent Patrol
    Nov 17, 2010 · Commissioned on Dec. 30, 1959, the George Washington was originally laid down in 1957 as the Skipjack-class attack submarine Scorpion (SSN 589).
  3. [3]
    SSBN-598 George Washington-Class FBM Submarines - Nuke
    The keel of the first of these two ships had already been laid at Electric Boat, Groton, Connecticut, as the "Scorpion" and it was actually cut apart in ...<|separator|>
  4. [4]
    Celebrating 124 Years of U.S. Navy Submarines: How SSP ...
    (Undated Photo) - USS George Washington (SSBN 598) at sea. USS George Washington would successfully launch first-ever fleet ballistic missile July 20, 1960.
  5. [5]
    The 598 Overhaul | Proceedings - January 1965 Vol. 91/1/743
    The pioneer George Washington is being refueled for the first time and modified to carry missiles which will double her striking range.
  6. [6]
    USS George Washington (SSBN-598)
    Sep 20, 2024 · ” George Washington was decommissioned on 24 January 1985, and was later scrapped. The submarine's sail, or conning tower, was saved and is ...Missing: achievements | Show results with:achievements
  7. [7]
    George Washington III (SSBN-598)
    Aug 16, 2024 · George Washington was decommissioned on 24 January 1985, stricken on 30 April 1986, and later transferred to Puget Sound Naval Shipyard, ...Missing: achievements | Show results with:achievements
  8. [8]
    USS George Washington (SSBN 598) - Unofficial US Navy Site
    Aug 22, 2010 · Keel laid: November 1, 1958. Launched: June 9, 1959. Commissioned: December 30, 1959. Decommissioned: January 24, 1985. Builder: Electric Boat ...
  9. [9]
    George Washington-Class (SSBN-598) Ballistic Missile Submarines
    Mar 27, 2024 · The George Washington class submarines, developed by General Dynamics Electric Boat Division, were the first US submarines equipped with ballistic missiles.
  10. [10]
    USS George Washington SSBN 598 - theleansubmariner
    Dec 29, 2011 · Keel laid: November 1, 1958. Launched: June 9, 1959. Commissioned: December 30, 1959. Decommissioned: January 24, 1985. Builder: Electric Boat ...
  11. [11]
    U. S. Nuclear-Powered Submarines - August 1967 Vol. 93/8/774
    Sixteen missiles remain the standard armament, the submarines being fitted with the improved A-2 missile. Engineering plants are essentially the same as those ...
  12. [12]
    USS George Washington Launched – Today in History: June 9
    On June 9, 1959, the first nuclear-powered, ballistic-missile submarine, the USS George Washington (SSBN 598), was launched at Groton.<|separator|>
  13. [13]
    SSBN force celebrates 60 years of strategic deterrence
    Nov 16, 2020 · USS George Washington (SSBN 598) departed Cape Canaveral, Florida, with 16 Polaris missiles on the first strategic deterrent patrol, Nov. 15 ...
  14. [14]
    Nuclear-powered Ballistic Missile Submarines
    When completed, George Washington measured 382 feet (162 m) long and 33 feet (10 m) abeam, displacing 6,709 tons submerged. Her surface speed was 16 knots (30 ...
  15. [15]
    JAPANESE SHIP SINKS IN COLLISION WITH U.S. ATOM SUB
    Apr 11, 1981 · A Japanese freighter and an American nuclear-powered submarine running just below the surface collided yesterday in the East China Sea. The cargo ship sank.<|separator|>
  16. [16]
    [PDF] Commentary - U.S. Naval War College Digital Commons
    The collision rolled the submarine to port and damaged its sail. Fatal damage had been inflicted on the hull of the 2,850-ton Nissho Maru, although no one in ...
  17. [17]
    Watch Where You Are Going… The Ocean Is Big But Not as Big as ...
    Mar 10, 2021 · On 9 April 1981, the USS George Washington (SSBN 598) surfaced underneath the 2,350 long tons (2,390 t) Japanese commercial cargo ship Nissho ...
  18. [18]
    Sub Skipper Said Unaware Ship He Hit Was Sinking
    May 5, 1981 · The captain and another crewman of the freightor were killed in the accident. Thirteen other crewmen were rescued by a Japanese destroyer 18 ...Missing: details | Show results with:details
  19. [19]
    Report U.S. submarine commander stripped of post - UPI Archives
    May 31, 1981 · Robert D. Woehl has been stripped of the command of the Polaris-missile carrying submarine USS George Washington. Japan's Kyodo News Agency ...
  20. [20]
    [PDF] Folder Title: Japan (05/15/1981-05/19/1981) - Ronald Reagan Library
    Suzuki to provide an explanation of the collision between. USS GEORGE WASHINGTON and the Japanese vessel NISSHO :MARU prior to his visit to Washington, the ...
  21. [21]
    USS George Washington (SSBN-598)
    The USS George Washington was the first US fleet ballistic submarine, first to launch a Polaris missile, and later became an attack submarine. It was ...
  22. [22]
    [PDF] PUGET SOUND NAVAL SHIPYARD - Cold War Boats
    DECOMMISSIONING CEREMONY. FOR. UNITED STATES SHIP. GEORGE WASHINGTON. SSN 598 ... Commanding Officer, USS GEORGE WASHINGTON (SSN 598). ... GEORGE WASHINGTON (SSBN ...
  23. [23]
    GEORGE WASHINGTON SSBN 598 - NavalCoverMuseum
    Jan 26, 2017 · George Washington Class Ballistic Missile Submarine. Keel Laid 1 November 1958 as SCORPION SSN-589. Renamed and redesignated SSBN-598. Launched 9 June 1959.
  24. [24]
    U.S. Naval Operations in 1982 - May 1983 Vol. 109/5/963
    May 25, 1983 · ... the George Washington (SSN-598), Patrick Henry (SSN-599), Robert E. Lee, Ethan Allen (SSN-608), Sam Houston (SSN-609), and Thomas A. Edison ...
  25. [25]
    Tomorrow's Fleet | Proceedings - February 1984 Vol. 110/2/972
    (The George Washington [ex-SSBN-598, SSN-598] is still in service even though her name was selected for CVN-73. The name assignment, however, will not be ...Missing: Canal | Show results with:Canal
  26. [26]
    [PDF] U. S. NAVAL NUCLEAR POWERED SHIP INACTIVATION ...
    The U.S. Navy has developed and implemented a program to safely dispose of decommissioned nuclear-powered ships. This involves defueling the reactor, ...
  27. [27]
    Strategic Deterrence - Naval History and Heritage Command
    Jun 24, 2024 · The first of the 41 for Freedom submarines was George Washington (SSBN-598), which made history by successfully launching the first Polaris ...
  28. [28]
    The SSBN in National Security - GlobalSecurity.org
    A little more than three years later, USS George Washington (SSBN-598) went to sea on its first strategic deterrent patrol – the first of almost 3,500 patrols ...Missing: specifications | Show results with:specifications
  29. [29]
    USS GEORGE WASHINGTON (SSVN-598) SAIL MEMORIAL PLAQUE
    Type of Memorial: War Memorial Markers (Groups). Access: Public. Wars Commemorated: PEACETIME. Photograph By: MICHAEL HERRICK.
  30. [30]
    SSBN 598 - Submarine Force Library & Museum Association
    Jul 27, 2017 · SSBN-598 was the world's first ballistic missile submarine. Launched on June 9, 1959, she was sponsored by Mrs. Robert B. 2