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Destroyer.

Trump-Class Battleship BBG(X) – Technical Specifications, Capabilities & Strategic Role.

Trump-class large surface combatant guided missile battleship warship United States

The Trump-class Guided Missile Destroyer is a next-generation multi-role surface combatant developed by the United States Navy under the strategic Golden Fleet initiative. Designed to project unmatched naval power across global theaters, it integrates hypersonic missile systems, railgun technology, advanced radar arrays, and directed-energy weapons into a modular, future-proof platform. As the most powerful surface warship ever fielded by the United States, the Trump-class stands as a cornerstone of America’s 21st-century maritime dominance doctrine.

Country users: United States

Description

The Trump-class is a planned new generation of nuclear-powered guided-missile battleships being developed for the United States Navy under the BBG(X), now BBGN, advanced surface combatant program. Announced by the U.S. administration on December 22, 2025 as part of the Golden Fleet initiative, the class is intended to provide the U.S. Navy with an exceptionally large surface combatant combining long-range conventional strike, air and missile defense, hypersonic weapons, nuclear-capable cruise missiles and future directed-energy systems.

The program represents a major change in the U.S. Navy's future surface combatant strategy. Rather than continuing development of the smaller DDG(X) next-generation destroyer, the Navy plans to develop the Trump-class as a new clean-sheet large surface combatant while continuing production of Arleigh Burke-class Flight III destroyers. The Trump-class is intended to avoid some of the size, power and payload limitations associated with fitting future weapons and sensors aboard smaller surface combatants.

According to the U.S. Navy's Fiscal Year 2027 shipbuilding plan, the Trump-class will use nuclear propulsion and carry the designation BBGN, identifying it as a nuclear-powered guided-missile battleship. The current plan calls for 15 ships to be procured between 2028 and 2056, beginning with one ship in 2028, followed by additional vessels as the program progresses. The lead ship is planned to be named Defiant and designated BBGN-1.

The Trump-class is expected to displace approximately 35,000 tons or more at full load and measure between 840 and 880 feet (approximately 256 to 268 meters) in length. With a projected beam of 105 to 115 feet (32 to 35 meters), a crew of approximately 650 to 850 personnel and a sustained speed exceeding 30 knots, the class would be substantially larger than existing U.S. Navy cruisers and destroyers. If built according to the currently disclosed characteristics, it would become the world's largest surface combatant and the largest surface combatant constructed for the U.S. Navy since World War II.

The planned missile battery represents one of the defining characteristics of the design. Current U.S. Navy information assessed by the Congressional Budget Office indicates a baseline of 128 Mk 41 Vertical Launching System cells capable of accommodating weapons for air defense, anti-ship warfare and land attack. The ship is also planned to incorporate four large Conventional Prompt Strike launcher tubes accommodating three hypersonic missiles each, providing a total capacity of twelve CPS weapons. If the CPS launchers were omitted in a future configuration, the available volume could potentially accommodate additional Mk 41 VLS cells.

The Trump-class is also planned to carry the nuclear-armed Sea-Launched Cruise Missile-Nuclear (SLCM-N), giving the ship a strategic nuclear strike role in addition to its conventional missions. Other announced capabilities include two 5-inch naval guns, Rolling Airframe Missile defensive systems, high-powered directed-energy weapons and an electromagnetic railgun. Some of these technologies remain under development, and the Navy could reserve space, weight, electrical power and cooling capacity for their later installation if they are not sufficiently mature when construction begins.

The decision to adopt nuclear propulsion represents a major evolution from the initial Trump-class concept, which had been evaluated with conventional propulsion. Nuclear power is expected to support the very high electrical demands associated with advanced sensors, directed-energy weapons and future combat systems while providing sustained high-speed operations without dependence on conventional marine fuel. The change will, however, significantly affect the ship's final design, construction requirements and acquisition cost.

In August 2026, the U.S. Congressional Budget Office estimated that the first Trump-class nuclear-powered battleship could cost approximately $23.4 billion in 2026 dollars, with each of the fourteen follow-on ships averaging about $18 billion. Under the Navy's current 15-ship procurement plan, total construction costs could reach approximately $275 billion through 2056. The CBO stressed that these estimates remain highly uncertain because the ship is still at an early stage of design and many aspects of the final configuration have yet to be determined.

The Trump-class therefore remains a development program rather than an operational warship. Its final propulsion architecture, weapons configuration, sensors, survivability features and construction arrangements may continue to evolve as the U.S. Navy progresses from preliminary design toward detailed engineering and procurement. If implemented as currently planned, the class would introduce an unprecedented concentration of conventional and strategic missile firepower aboard a U.S. Navy surface combatant and become a central element of the future Golden Fleet concept.

Trump-class battleship variants:

- Trump-class Flight I:  Baseline production variant equipped with railgun, 128 Mk 41 VLS cells, CPS launchers, lasers, and full-spectrum sensors.
- Trump-class Flight II (Projected): Potential future variant with integrated electric propulsion, enhanced autonomy, and high-end AI-assisted combat systems.

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Technical Data

  • Design

    The Trump-class is a planned nuclear-powered large surface combatant being developed by the United States Navy as the successor to the previously planned DDG(X) next-generation destroyer program. Current planning indicates a displacement of approximately 35,000 tons or more at full load, a length of approximately 840 to 880 feet (256 to 268 meters), a beam of approximately 105 to 115 feet (32 to 35 meters), and a crew of approximately 650 to 850 personnel. The large hull is intended to provide the internal volume, payload capacity, electrical power, cooling capacity and growth margins required for a large missile battery, hypersonic weapons, advanced sensors, directed-energy systems and future combat technologies. As the program remains at an early stage of development, the final hull form, superstructure arrangement, internal configuration and survivability features have not yet been publicly finalized and may evolve as the U.S. Navy progresses toward detailed design and construction.

  • Weapons

    The Trump-class is planned to carry a large and diversified weapons suite supporting long-range strike, air and missile defense, anti-surface warfare and strategic missions. The current baseline includes 128 Mk 41 Vertical Launching System cells capable of accommodating weapons such as Tomahawk land-attack cruise missiles, Standard Missile family interceptors, Evolved Sea Sparrow Missiles and anti-submarine weapons, together with four large-diameter launch tubes accommodating up to twelve Conventional Prompt Strike hypersonic missiles. The class is also planned to support the nuclear-armed Sea-Launched Cruise Missile-Nuclear (SLCM-N). Gun armament is expected to include two 5-inch naval guns, while short-range protection is planned to include Rolling Airframe Missile systems. Current planning also provides for high-powered directed-energy weapons and an electromagnetic railgun, although these technologies remain developmental and their installation will depend on their maturity when the ships enter construction and combat-system integration.

  • Sensors, Electronic Systems, and Radars

    The Trump-class is expected to employ an advanced integrated combat system capable of supporting air and missile defense, surface warfare, long-range strike and networked fleet operations. The ship is expected to incorporate an advanced air and missile defense radar, potentially derived from the U.S. Navy's SPY-6 family, together with technologies associated with the Aegis combat system, Cooperative Engagement Capability, advanced electronic warfare systems and secure tactical communications. These systems would allow the battleship to detect and track multiple threats while exchanging sensor and targeting information with other surface ships, submarines, aircraft, unmanned platforms and space-based assets. Its nuclear-powered architecture and large hull are intended to provide substantial electrical-power and cooling margins for future radar improvements, electronic warfare equipment, directed-energy weapons and increasingly demanding command-and-control systems, although the final sensor and electronic warfare configuration has not yet been publicly finalized.

  • Engine

    The Trump-class is planned to use nuclear propulsion, representing a major departure from earlier concepts for a conventionally powered large surface combatant. Nuclear propulsion is intended to provide sustained high-speed endurance without dependence on conventional propulsion fuel, with current planning indicating a maximum speed exceeding 30 knots. The nuclear power plant would also provide substantial electrical-generation capacity for advanced radar arrays, electronic warfare systems, directed-energy weapons and potential electromagnetic weapon systems, while retaining additional power margins for future modernization. The exact reactor configuration, number of reactors, propulsion arrangement and electrical output have not yet been publicly disclosed and are expected to be defined as the U.S. Navy advances the ship through detailed design.

  • Aircraft and Helicopter Capability

    The Trump-class is expected to incorporate aviation facilities capable of supporting helicopters and unmanned aerial systems for intelligence, surveillance and reconnaissance, anti-submarine warfare, targeting, logistics and other maritime missions. A flight deck and hangar would allow embarked aircraft and UAVs to extend the ship's surveillance and targeting reach beyond the horizon and contribute information to its long-range missile systems and wider naval force. Unmanned aircraft could also support communications relay, maritime surveillance and targeting missions as part of distributed fleet operations. The final aviation complement, hangar configuration and specific aircraft or unmanned systems to be embarked have not yet been publicly confirmed and should therefore be considered subject to further development.

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Specifications

  • Type

    Nuclear-powered guided-missile battleship / large surface combatant

  • Country users

    United States

  • Designer Country

    United States

  • Engine

    Nuclear propulsion

  • Speed

    30+ knots

  • Range

    Estimated 5,000–7,000 nautical miles

  • Crew

    650–850 personnel

  • Armament

    128 Mk 41 VLS cells; 12 CPS hypersonic weapons in 4 large-diameter launchers; 2 × 5-inch guns; planned SLCM-N capability; RAM; planned directed-energy and electromagnetic weapons

  • Sensors/Radars

    Advanced air and missile defense radar and integrated combat system; final configuration TBD

  • Dimensions

    Length: 256-268 m; Beam: 32-35 m; Draft: 7.3

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