**OVERVIEW:** The SSBN 726 *Ohio* is a ballistic missile submarine of the *Ohio*-class, operated by the United States Navy. While the *Ohio* was commissioned much earlier, this entry reflects a hypothetical refit and commissioning date of 2008, representing a modernized configuration.

**DETAILS:**

The *Ohio*-class ballistic missile submarine was conceived during the Cold War as a key component of the United States' strategic nuclear deterrent. Designed to replace the aging *George Washington*, *Ethan Allen*, and *Lafayette*-class submarines, the *Ohio*-class emphasized stealth, endurance, and the capacity to carry a large number of intercontinental ballistic missiles. The original design was predicated on the Trident I (C4) missile, but later boats, including this hypothetical refit of *Ohio*, were designed to carry the more capable Trident II (D5) missile. The class's large size enables extended deployments and contributes to a quieter operating profile. The refit to a 2008 standard would likely incorporate improvements in sonar technology, navigation systems, and crew comfort. The design philosophy prioritizes survivability through deep-water operations and acoustic quieting, making it a formidable and elusive platform.

The primary role of the *Ohio* is strategic deterrence, achieved through the credible threat of nuclear retaliation. The boat's complement of Trident D5 missiles provides a secure and survivable second-strike capability. While primarily focused on its strategic mission, the *Ohio* is also capable of limited self-defense. The 533mm torpedo tubes provide a means to engage hostile surface ships and submarines, although this is a secondary consideration given the platform's core mission. Its advanced sensor suite allows for comprehensive situational awareness, crucial for navigating complex underwater environments and avoiding detection. The presence of the 3-inch signal ejector allows for the launch of countermeasures and communication devices without compromising the boat's position.

The *Ohio*'s sensor suite, reflecting a 2008 standard, provides advanced detection and navigation capabilities. The AN/BQQ-10 sonar system forms the backbone of the submarine's acoustic detection, providing long-range surveillance and target tracking. The AN/BQR-19 navigation sonar provides precise speed-over-ground information. The AN/BLQ-10(V)5 electronic support measures (ESM) system intercepts and analyzes enemy radar and communications signals. The AN/BPS-15A surface search radar allows for limited surface navigation and target detection. The AN/TB-29A towed array enhances the submarine's ability to detect distant targets in a noisy environment. The AN/WLY-1 acoustic intercept receiver further improves situational awareness by detecting and classifying active sonar emissions from other platforms. The inclusion of both Optical and Low-Light Television (LLTV) periscopes provides redundancy and enhanced visual capabilities for navigation and observation. The Trident D5 missiles provide the long range strike capability.

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