Sat. Apr 18th, 2026
091117-N-1644H-327 PACIFIC OCEAN (Nov. 17, 2009) ñ USS Lassen (DDG 82) steams through the Pacific Ocean during a 26 ship formation photo exercise. George Washington, the Navyís only permanently forward-deployed aircraft carrier participated in a photo exercise which was the culmination of ANNUALEX 21G, the largest annual bilateral exercise with the U.S. Navy and the Japan Maritime Self Defense Force. (U.S. Navy photo by Mass Communication Specialist 1st Class John M. Hageman/RELEASED)

USS Lassen (DDG-82)

USS Lassen (DDG-82) is a premier Arleigh Burke‑class (Flight IIA) guided missile destroyer in the United States Navy. Commissioned on April 21, 2001, the ship is named in honor of Medal of Honor recipient Commander Clyde Everett Lassen, whose distinguished service continues to inspire the crew today. As a state-of-the-art warship, USS Lassen combines advanced propulsion systems, an integrated Aegis Combat System, and a diverse, multi-mission weapon suite to support air defense, surface warfare, and strike operations. The vessel’s overall design reflects the evolution of modern naval warfare, where versatility and lethality are paramount.

History and Development

Namesake and Legacy

USS Lassen bears the name of Commander Clyde Everett Lassen—a symbol of valor and dedication within the Naval service. His heroic actions have left a lasting imprint on the Navy, and the destroyer’s name serves as an enduring reminder of the sacrifice and leadership that have come to define U.S. maritime history.

Construction and Commissioning

USS Lassen was built by Ingalls Shipbuilding in Pascagoula, Mississippi. The keel was laid down on August 24, 1998, and she was launched on October 16, 1999. Following a rigorous period of outfitting, trials, and testing, USS Lassen was officially commissioned into the fleet on April 21, 2001. Over the years, the vessel has been homeported at Naval Station Mayport, Florida, serving as a critical asset within the U.S. Navy’s forward-deployed presence.

Design and Construction Overview

Hull Design and Structural Engineering

USS Lassen is built to the Arleigh Burke‑class blueprint, featuring a sleek, angular hull made from advanced high-strength steel alloys. This design minimizes both the radar and acoustic signatures of the destroyer, a crucial factor when operating in challenging threat environments. The hull is optimized for high-speed maneuverability and stability, enabling USS Lassen to maintain a rapid response capability even in adverse conditions.

Integration of the Aegis Combat System

At the core of USS Lassen’s combat effectiveness lies the integrated Aegis Combat System. Centered around the AN/SPY-1 phased array radar, this sophisticated system provides 360-degree surveillance and tracking of air, surface, and subsurface threats. Armed with powerful data fusion and real‑time threat analysis capabilities, the Aegis system allows the crew to rapidly identify and engage multiple targets simultaneously, ensuring that the destroyer remains a formidable opponent against modern ballistic, cruise, and surface threats.

Propulsion and Performance Characteristics

The destroyer’s performance is driven by a robust propulsion system consisting of four General Electric LM2500‑30 gas turbines coupled to two shafts. Generating approximately 100,000 shaft horsepower, this powerplant not only propels USS Lassen to speeds exceeding 30 knots but also supports the vessel’s extended operational range and endurance. The turbine technology, combined with advanced control systems, aids in maintaining low acoustic output—thereby enhancing the ship’s stealth capabilities during covert operations.

Technical Specifications

General Characteristics and Dimensions

The technical parameters of USS Lassen reveal the balance of size, agility, and firepower inherent in a modern guided missile destroyer. The table below summarizes the key specifications:

Parameter Value
Class/Type Arleigh Burke‑class (Flight IIA) Guided Missile Destroyer
Displacement Approximately 9,200 long tons (full load)
Length 509 ft 6 in (155.3 m)
Beam 66 ft (20 m)
Draft 31 ft (9.4 m)
Propulsion 4 × GE LM2500-30 gas turbines; 2 shafts; ~100,000 shp
Maximum Speed Exceeds 30 knots
Complement Approximately 320 officers and enlisted personnel

These dimensions provide the necessary space for an extensive suite of weapons, sensors, and support systems while ensuring a nimble and responsive platform at sea.

Propulsion System and Performance

USS Lassen’s propulsion system forms a critical pillar of her operational capability. Underpinning the vessel’s speed and maneuverability is a configuration of four General Electric LM2500-30 gas turbines. These turbines work in unison to deliver nearly 100,000 shaft horsepower through two controllable-reversible pitch propellers. As a result, USS Lassen can achieve speeds in excess of 30 knots, enabling rapid transits between areas of operation and high-speed repositioning as needed in a multi-threat environment. Additionally, efficient fuel usage and advanced turbine control systems contribute to her extended endurance during prolonged patrols and sustained mission operations.

Sensors, Electronics, and Combat Systems

Modern warfare demands seamless integration of sensor data, and USS Lassen meets this challenge with a sophisticated electronics suite.

Integrated Radar and Sonar Systems

At the forefront is the AN/SPY-1D radar array—a key component of the Aegis Combat System that offers comprehensive 360-degree tracking. Complementing this are state-of-the-art fire-control radars, such as the AN/SPG-62, which provide precise targeting information for both gun and missile engagements. Additionally, advanced sonar suites enable effective anti-submarine warfare, helping to detect and track underwater threats.

Electronic Countermeasures and Communications

USS Lassen is equipped with robust electronic warfare and countermeasure systems. These tools can intercept, disrupt, or jam incoming signals from hostile radar and missile systems, ensuring greater survivability during high-intensity operations. Coupled with secure, network-centric communication systems, the destroyer can seamlessly integrate into larger battle groups and coordinate with other assets for unified multi-domain operations.

Armament and Offensive Capabilities

USS Lassen’s armament is built to ensure layered defense and multi-domain offense, enabling the ship to engage threats across air, surface, and subsurface domains.

Vertical Launch System and Missile Loadout

A centerpiece of her offensive package is the Mk 41 Vertical Launch System (VLS), which on USS Lassen consists of a combined total of 96 missile cells. This modular system allows for a flexible mix of munitions, including:

  • RIM-66M Surface-to-Air Missiles: Providing medium- and long-range air defense.
  • RIM-156 and RIM-174A Standard Missiles: For extended range engagements.
  • RIM-161 Anti-Ballistic Missiles: Offering missile defense capabilities.
  • RIM-162 ESSM: Quad-packed for enhanced short-range air defense.
  • BGM-109 Tomahawk Cruise Missiles: For precision land-attack operations.
  • RUM-139 Vertical Launch ASROC: To counter underwater threats.

This extensive loadout ensures that USS Lassen can dynamically respond to a multitude of threat vectors in real time.

Naval Guns and Close-In Defense

For direct fire support and close-range engagements, USS Lassen is armed with a 5-inch Mk 45 Mod 4 lightweight gun. This versatile artillery system supports both surface warfare and shore bombardment missions. Additionally, the ship is fitted with Phalanx Close-In Weapon Systems (CIWS) that provide a rapid-fire defensive barrier against incoming missiles and aircraft. Secondary weapon systems, including machine gun mounts, enhance her close-in defensive measures.

Torpedo Tubes and Aviation Support

To address submarine threats, USS Lassen is outfitted with Mk 32 triple torpedo tubes. These can launch a variety of lightweight torpedoes (such as the Mk-46, Mk-50, or Mk-54) to counter enemy submarines effectively. Furthermore, the destroyer is capable of supporting aviation operations—typically hosting two MH-60R Seahawk helicopters—thus extending her surveillance, anti-submarine, and search and rescue capabilities well beyond the immediate vicinity of the ship.

Operational Role and Mission Profile

USS Lassen serves as a versatile asset within modern carrier strike groups and independent deployment operations. Her primary missions include:

  • Air and Missile Defense: Leveraging the Aegis Combat System and a diverse missile loadout, she provides a protective shield for high-value assets.
  • Surface Warfare and Strike: With precision-guided Tomahawk missiles and robust naval gun fire, the destroyer can engage enemy vessels and land targets with surgical accuracy.
  • Anti-Submarine Warfare: An array of sonar systems, torpedo tubes, and aviation support allows her to detect and neutralize stealthy underwater adversaries.
  • Multi-Domain Integration: Through advanced communications and sensor networks, USS Lassen can seamlessly coordinate with other forces, maintaining situational awareness and operational agility in a contested environment.

Modernization and Future Upgrades

Advancements in Combat Systems

To keep pace with evolving threats, USS Lassen benefits from continuous modernization initiatives. Enhancements to the Aegis system—such as new missile interceptors and upgraded radar algorithms—allow for improved reaction times and tracking capabilities against emerging ballistic and cruise missile threats.

Cyber, Electronic Warfare, and Signature Reduction

Future upgrades also focus on bolstering the ship’s electronic warfare capacities and reducing its overall signature. Advancements in cyber defense, sensor fusion, and stealth-friendly coatings further ensure that USS Lassen remains an indispensable asset in an era marked by rapid technological change and multidimensional challenges.

Sustaining Multi-Mission Flexibility

As the nature of maritime conflicts continues to evolve, the modular design and scalable systems of USS Lassen facilitate the integration of new technologies. This adaptability ensures that the destroyer will retain its multi-mission flexibility well into the future.

Conclusion

USS Lassen (DDG-82) exemplifies the blend of tradition, cutting-edge technology, and strategic foresight that defines modern U.S. Naval power. From her distinguished namesake and robust construction to her advanced Aegis Combat System and versatile armament, USS Lassen is engineered to meet a broad spectrum of operational challenges. Whether deployed within a carrier strike group or operating independently in contested regions, she remains a formidable guardian on the high seas. As ongoing modernization initiatives push the boundaries of naval capability, USS Lassen will continue to play a pivotal role in maintaining maritime superiority and ensuring the security of U.S. interests around the globe.

US Navy 091117-N-1644H-327 The guided-missile destroyer USS Lassen (DDG 82) is underway in the Pacific Ocean