**OVERVIEW:** The SSBN 726 *Ohio* is a ballistic missile submarine of the *Ohio* class, operated by the United States Navy. Commissioned in 1996, she represents a later production example of the class, incorporating upgrades and refinements implemented throughout the *Ohio*-class program.

**DETAILS:**
The *Ohio*-class SSBN represents a cornerstone of the United States' strategic nuclear deterrent. Development began in the late 1960s, driven by the need for a more survivable and capable nuclear-powered ballistic missile submarine (SSBN) to replace the aging *George Washington*, *Ethan Allen*, and *Lafayette* classes. The design emphasized stealth, endurance, and the ability to carry a significant number of submarine-launched ballistic missiles (SLBMs). The *Ohio* class design incorporated a large, quiet hull powered by a single S8G pressurized water reactor. The intention was to create a platform that could remain undetected for extended periods, ensuring a credible second-strike capability. Although the *Ohio* herself was commissioned well after the initial class launch, her build reflects the ongoing technological advances and updates in submarine warfare.

The *Ohio*'s primary role is to serve as a strategic deterrent platform, deploying with a complement of Trident C4 submarine-launched ballistic missiles. This armament provides a secure and survivable means of delivering nuclear warheads to designated targets. While primarily focused on strategic deterrence, the *Ohio* also possesses a limited capability for anti-submarine warfare (ASW) using her torpedo armament, providing a degree of self-defense against potential threats. The integration of advanced sonar systems enables the submarine to monitor the underwater environment and detect potentially hostile vessels. The 3-inch signal ejector is primarily used for signaling and communication purposes.

The *Ohio* is equipped with a comprehensive suite of sensors for navigation, surveillance, and targeting. The AN/BQQ-6 integrated sonar suite provides both active and passive sonar capabilities for detection, classification, and tracking of underwater contacts. The AN/BQR-19 towed array sonar and AN/BQR-15A passive ranging sonar further enhance the submarine's ability to detect and localize distant targets. Electronic support measures (ESM) are provided by the AN/WLR-8(V)5 and AN/WLR-17 systems, enabling the submarine to detect and analyze radar emissions from surface ships and aircraft. The AN/WLR-10 provides early warning of hostile radar threats. The AN/BPS-15A surface search radar is used for navigation and surface contact detection. A generic submarine periscope with both optical and low-light television (LLTV) capabilities provides visual situational awareness and target identification. The CSA Mk1 FED [Mk139] is likely a component of a countermeasures system, enhancing the submarine's survivability against torpedo attacks.

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

**SENSORS:** AN/BPS-15A || AN/WLR-8(V)5 || AN/BQQ-6 || AN/WLR-10 || AN/BQR-19 || AN/BQR-15A || AN/WLR-17 || Generic Submarine Periscope, Optical || Generic Submarine Periscope, LLTV

**ARMAMENT:** 533mm Mk68 TT || Trident C4 || 3-inch Signal Ejector || CSA Mk1 FED [Mk139]