Ohio-Class Submarine (SSBN/SSGN)

Full Specifications

Ohio-Class Ballistic Missile Submarine (SSBN)

The Ohio-class submarines form the cornerstone of the United States Navy’s strategic nuclear deterrent. Built by General Dynamics Electric Boat, these nuclear-powered ballistic missile submarines (SSBNs) were designed to ensure second-strike capability through unparalleled stealth, endurance, and firepower. Commissioned between 1981 and 1997, 18 Ohio-class submarines were constructed, with 14 configured as SSBNs and 4 later converted to SSGNs for conventional strike and special operations support.

Each Ohio-class submarine measures 560 feet in length and displaces over 18,000 tons submerged, making it one of the largest submarines ever built by the U.S. Navy. Powered by a S8G nuclear reactor, the vessel can remain submerged for months, limited only by crew endurance and onboard supplies. With a maximum submerged speed exceeding 25 knots, it can silently patrol vast ocean regions while remaining virtually undetectable.

The Ohio-class SSBN carries 24 Trident II D5 submarine-launched ballistic missiles (SLBMs), each capable of delivering multiple independently targetable reentry vehicles (MIRVs). These precision-guided warheads can strike targets thousands of miles away, ensuring credible nuclear deterrence. The class is also fitted with advanced sonar systems, electronic countermeasures, and robust communication arrays for secure contact with U.S. Strategic Command.

Operating primarily under U.S. Strategic Command (STRATCOM), the Ohio-class fleet remains continuously deployed, with at least one submarine on deterrent patrol at all times. Its reliability, low acoustic signature, and massive payload make it the most survivable leg of America’s nuclear triad.

Ohio-Class Submarine Price

While the exact unit cost varies by configuration and modernization phase, the estimated price per Ohio-class submarine exceeds $2 billion (USD). Its successor, the Columbia-class, is projected to continue the Ohio’s legacy into the next generation of undersea deterrence.