OVERVIEW: The SSBN 734 Tennessee [Ohio Class] is a ballistic missile submarine operated by the United States Navy.

DETAILS:
The Ohio-class submarines were conceived in the 1970s as a replacement for the aging fleet of George Washington and Ethan Allen-class SSBNs, representing a significant advancement in stealth, survivability, and strategic deterrence. The primary design philosophy centered on providing a highly reliable and undetectable platform for launching submarine-launched ballistic missiles (SLBMs). The class was designed to operate for extended periods submerged, reducing detectability and ensuring the continued viability of the United States' strategic nuclear deterrent. The Ohio-class incorporates advanced noise reduction techniques, a modular design for ease of maintenance and upgrades, and a robust hull capable of withstanding significant underwater pressure. The Tennessee entered service following an extensive conversion and modernization program, likely involving upgrades to its sensor suite and weapons systems to reflect contemporary technological advancements.

The primary role of the SSBN 734 Tennessee is strategic nuclear deterrence. It achieves this through the deployment of Trident D5 submarine-launched ballistic missiles, capable of delivering multiple independently targetable reentry vehicles (MIRVs) to targets across the globe. While primarily focused on strategic deterrence, the vessel also possesses inherent capabilities for anti-submarine warfare (ASW) through its sonar suite and torpedo armament. Although not optimized for anti-surface warfare (ASuW) or anti-air warfare (AAW), the boat can defend itself if necessary. The Ohio-class, in its SSBN configuration, dedicates the majority of its internal volume and resources to the ballistic missile system.

The installation of the AN/BQQ-10 sonar suite provides advanced underwater surveillance and tracking capabilities, essential for detecting and classifying potential threats. The AN/BQR-19 provides passive sonar detection, while the AN/BLQ-10(V)5 integrates acoustic intelligence and countermeasures capabilities. The AN/TB-29A towed array sonar further enhances the submarine’s long-range detection capabilities. The AN/BPS-15A radar provides surface search and navigation capabilities when the vessel is operating at periscope depth. The AN/WLY-1 acoustic countermeasures system serves to reduce the risk of detection. The 533mm Mk68 torpedo tubes enable the employment of Mk48 or similar torpedoes for self-defense or engagement of hostile submarines. The optical and LLTV periscopes allow for visual surveillance and target identification. The CSA Mk2 Mod 0 [Mk151] likely refers to a countermeasure system, deploying decoys to confuse incoming torpedoes. The 3-inch Signal Ejector is for launching signal flares or other expendable devices.

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

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