
General Dynamics Electric Boat (GDEB) is a subsidiary of General Dynamics Corporation and the primary builder of submarines for the US Navy. The company's main facilities include a shipyard in Groton, Connecticut, a hull-fabrication facility in Rhode Island, and a design and engineering facility in New London, Connecticut.
| Characteristics | Values |
|---|---|
| Year founded | 1899 |
| Founder | Isaac Rice |
| Parent company | General Dynamics Corporation |
| Primary business | Submarines for the US Navy |
| Main facilities | Shipyard in Groton, Connecticut; hull-fabrication and outfitting facility in Quonset Point, Rhode Island; design and engineering facility in New London, Connecticut |
| Certifications | ISO 9001, ISO 14001, ISO 45001 |
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What You'll Learn

Shipyard in Groton, Connecticut
The General Dynamics Electric Boat Company (GDEB) is a subsidiary of the General Dynamics Corporation and the primary builder of submarines for the United States Navy for over a century. The company's main facility is a shipyard in Groton, Connecticut, which has been its primary submarine manufacturing site since 1931.
The shipyard in Groton, Connecticut, has a long history of constructing submarines for the US Navy. During World War II, the plant built 74 submarines, and since 1974, it has been one of only two manufacturers of submarines for the Navy, the other being Newport News Shipbuilding in Virginia. The shipyard has built at least one unit of every class of serially-produced US Navy submarines after 1931, with some exceptions.
The first submarine built at the Groton shipyard was the Cuttlefish in 1931. Before that, Electric Boat designed submarines and subcontracted their construction to other shipyards, such as the Fore River Shipyard in Quincy, Massachusetts. The success of the USS Holland, the first submarine commissioned into the US Navy in 1900, created demand for follow-up models, with the prototype submersible Fulton built at Electric Boat.
The shipyard has faced challenges, including structural welding defects in the early 1980s that resulted in significant delays and expenses. Despite this, Electric Boat continues to be a significant contributor to the US Navy's submarine fleet, as evidenced by the $17.8 billion contract awarded to them in 2014 for ten Block IV Virginia-class attack submarines.
The shipyard in Groton, Connecticut, is not just a historical site but also a vital contributor to the US Navy's modern submarine capabilities.
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Hull-fabrication facility in Rhode Island
General Dynamics Electric Boat (GDEB) is a subsidiary of the General Dynamics Corporation and has been the primary builder of submarines for the United States Navy for over a century. The company has a hull-fabrication and outfitting facility in Quonset Point, Rhode Island, in addition to a shipyard in Groton, Connecticut, and a design and engineering facility in New London, Connecticut.
The hull-fabrication facility in Quonset Point, Rhode Island, plays a crucial role in the construction of submarines for the US Navy. Major submarine components are manufactured at this facility using advanced digitally controlled machines for cutting, machining, and bending. These precision processes are guided by digital design data transmitted electronically from the Groton design organization to the Automated Steel Processing Facility in Quonset Point.
The Rhode Island facility is responsible for fabricating the steel hull cylinders that form the basic structure of the submarines. Once the hull cylinders are completed, they undergo the outfitting process. This involves installing various systems and components, such as tanks, propulsion and auxiliary machinery, piping, wiring, and lighting. Additionally, special hull coatings are applied to protect the submarine's exterior.
The complex process of hull fabrication and outfitting requires a highly skilled workforce and specialised equipment. The facility in Rhode Island has the necessary resources and expertise to transform raw materials into functional submarine components. This includes the ability to cut and shape steel according to precise specifications, ensuring that each hull cylinder meets the required standards for strength and durability.
Once the hull cylinders are fully outfitted, they are carefully transported by barge to either Groton, Connecticut, or Huntington Ingalls-Newport News Shipbuilding in Newport News, Virginia, for final assembly and completion. This transportation process ensures that the submarines are safely moved to the next stage of construction, bringing them one step closer to becoming fully operational vessels for the US Navy.
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Engineering facility in New London, Connecticut
General Dynamics Electric Boat (GDEB) is a subsidiary of the General Dynamics Corporation and has been the primary builder of submarines for the United States Navy for over a century. The company was founded in 1899 by Isaac Rice as the Electric Boat Company. The company's main facilities include a shipyard in Groton, Connecticut, a hull-fabrication and outfitting facility in Quonset Point, Rhode Island, and a design and engineering facility in New London, Connecticut.
The engineering facility in New London, Connecticut, is one of the key sites for General Dynamics Electric Boat's operations. This facility is dedicated to the design and engineering aspects of submarine development, utilising advanced technology and expertise to create innovative submarine designs. The site houses a talented team of engineers, designers, and other specialists who work collaboratively to develop cutting-edge submarines for the US Navy.
The New London facility plays a crucial role in the company's success, as it is where the intricate processes of submarine design and engineering take place. This involves a range of activities, from initial concept development and computer-aided design to the creation of detailed technical specifications and testing procedures. The engineers and designers at this facility possess a deep understanding of submarine architecture, propulsion systems, sonar technology, and other specialised fields.
The facility is equipped with state-of-the-art equipment and tools necessary for effective design and engineering work. This includes advanced computer systems, modelling software, simulation technologies, and prototyping capabilities. The site may also have testing laboratories and research areas where various components and systems are evaluated to ensure they meet the stringent requirements of submarine operations.
The engineering facility in New London operates in conjunction with the other main facilities of General Dynamics Electric Boat, including the shipyard in Groton, Connecticut, and the hull-fabrication site in Quonset Point, Rhode Island. This integrated approach allows for a seamless transition from design and engineering to construction and final assembly, ensuring that the submarines are built to the highest standards of quality and performance.
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Electric Boat ranked 77th in WWII military contracts
General Dynamics Electric Boat (GDEB) is a subsidiary of General Dynamics Corporation and has been the primary builder of submarines for the United States Navy for over a century. The company was founded in 1899 by Isaac Rice as the Electric Boat Company to build John Philip Holland's submersible ship designs. The first submarine built by the company was Holland VI, which became USS Holland when it was commissioned into the United States Navy on April 11, 1900, making it the first submarine to be officially commissioned.
During World War II, Electric Boat built 74 submarines at its Groton plant, while Elco built nearly 400 PT boats. Electric Boat ranked 77th among United States corporations in the value of World War II military production contracts. The company's importance during the war can be attributed to its ability to mass-produce submarines, which were in high demand by the US Navy.
In the years following World War II, Electric Boat continued to play a significant role in submarine construction for the US Navy. In 1952, the company was reorganized as General Dynamics Corporation under John Jay Hopkins. Despite the change in name, the submarine-building operation retained the "Electric Boat" name. This reorganization marked a new era for the company, as it acquired Convair and expanded its capabilities in the military industry.
Electric Boat has a long history of innovation in submarine design and technology. In 1954, they built the first nuclear submarine, USS Nautilus, and in 1959, they constructed the first ballistic missile submarine, USS George Washington. Electric Boat has also built submarines of the Ohio, Los Angeles, Seawolf, and Virginia classes. In recent years, Electric Boat has continued to secure significant contracts, such as the $17.8 billion contract awarded in 2014 for ten Block IV Virginia-class attack submarines, demonstrating their continued importance in the military industry.
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Electric Boat is a subsidiary of General Dynamics
Electric Boat's main facilities include a shipyard in Groton, Connecticut, a hull-fabrication and outfitting facility in Quonset Point, Rhode Island, and a design and engineering facility in New London, Connecticut. The company was founded by Isaac Rice to build John Philip Holland's submersible ship designs, which were initially developed at Lewis Nixon's Crescent Shipyard in Elizabeth, New Jersey. The Holland VI was the first submarine built by Electric Boat, which became the USS Holland when it was commissioned into the US Navy in 1900, marking the first official submarine commissioning.
The success of the Holland VI led to a demand for follow-up models, with the prototype submersible Fulton built at Electric Boat. Since 1931, with the exception of a few submarines, every unique US Navy submarine has been built by Electric Boat. During World War II, the company constructed 74 submarines at the Groton plant, ranking 77th among US corporations in the value of World War II military production contracts.
In the 1980s, Electric Boat faced challenges due to structural welding defects and falsified inspection records, resulting in significant delays and expenses. Despite this setback, Electric Boat continues to be a significant player in submarine construction, with a $17.8 billion contract awarded in 2014 for ten Block IV Virginia-class attack submarines, showcasing their expertise and contribution to the defence industry.
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Frequently asked questions
General Dynamics Electric Boat's main facilities are a shipyard in Groton, Connecticut, a hull-fabrication and outfitting facility in Quonset Point, Rhode Island, and a design and engineering facility in New London, Connecticut.
General Dynamics Electric Boat was founded in 1899 by Isaac Rice as the Electric Boat Company to build John Philip Holland's submersible ship designs. The company was originally called the Electric Boat Company until 1952 when it was reorganized as General Dynamics Corporation.
General Dynamics Electric Boat has been the primary builder of submarines for the United States Navy for over 100 years.











































