OVERVIEW: The SSBN 734 Tennessee [Ohio Class] is a nuclear-powered ballistic missile submarine (SSBN) operated by the United States Navy. Commissioned in 2020, it represents a significant platform in the nation's strategic nuclear deterrent.

DETAILS:
The Ohio-class submarine program emerged from a recognized need for a more survivable and capable sea-based deterrent following advances in Soviet anti-submarine warfare capabilities during the Cold War. The class was designed with a focus on stealth, endurance, and the ability to carry a large payload of submarine-launched ballistic missiles (SLBMs). The Ohio-class design emphasizes quiet operation through advanced hull design, noise reduction technologies, and an efficient propulsion system. This allows the platform to operate undetected in vast ocean areas, maximizing its survivability and ensuring a credible retaliatory capability. While earlier Ohio-class submarines were commissioned prior to 2000, the SSBN 734 *Tennessee* represents a later refit and upgrade to modernize sensor suites and weaponry, bringing it in line with current operational requirements.

The primary role of the SSBN 734 *Tennessee* is strategic deterrence, achieved through its ability to launch Trident D5 submarine-launched ballistic missiles. While primarily an offensive platform, the vessel retains a limited anti-submarine warfare (ASW) capability through its torpedo armament and advanced sonar systems. Its operational profile centers around prolonged, silent patrols in designated ocean areas, remaining undetected for extended periods while maintaining readiness to execute launch orders if necessary. The vessel’s 533mm Mk68 torpedo tubes provide the capability to engage enemy submarines or surface combatants, although such engagements are secondary to its primary mission. The Tennessee does not have an AAW capability.

The *Tennessee*'s sensor suite is critical to its operational effectiveness. The AN/BQQ-10 sonar system provides comprehensive underwater surveillance, detection, tracking, and classification of potential threats. The AN/BLQ-10(V)5 electronic warfare suite is integral for signals intelligence gathering and countermeasures. The installation of the Large Vertical Array (LVA) enhances low-frequency detection capabilities, improving its ability to detect distant submarines. Navigation is aided by the AN/BPS-15A radar and the AN/BQR-19 navigation sonar. The AN/TB-29A towed array sonar offers extended-range detection capabilities. Optical and LLTV periscopes are installed for visual observation and surface navigation. The AN/WLY-1 acoustic intercept receiver is capable of detecting and analyzing acoustic emissions from other vessels.

SPECIFICATION: Length: 170.0 m || Beam: 13.0 m || Draft: 10.8 m || Disp: 16765 t

SENSORS: AN/TB-29A || AN/WLY-1 || AN/BQQ-10 || AN/BPS-15A || AN/BQR-19 || AN/BLQ-10(V)5 || Generic Submarine Periscope, Optical || Generic Submarine Periscope, LLTV || Large Vertical Array (LVA)

ARMAMENT: 533mm Mk68 TT || 3-inch Signal Ejector || CSA Mk2 Mod 0 [Mk151] || CSA Mk2 Mod 0 [Mk151] || Trident D5