# US submarine industrial base expansion

> Live situation record from CLSTR: https://clstr.news/situations/us-submarine-industrial-base-expansion
> Updated: 2026-10-27T18:03:27.000Z. Sources: 5. Developments: 2.

The United States is expanding its submarine manufacturing and maintenance capabilities through significant infrastructure investments and new contracts. Fairbanks Morse Defense (FMD) has broken ground on a $60 million facility in Pascagoula, Mississippi, designed to produce critical components like propellers and rotors for Virginia-class attack submarines and surface combatants. This expansion is supported by collaborative funding from the U.S. Navy and Australia under the AUKUS security pact.

Furthering these efforts, the U.S. Department of Defense has awarded major contracts to support naval nuclear propulsion. Fluor Marine Propulsion LLC received $2.4 billion to manage research and testing facilities for nuclear-powered submarines and aircraft carriers. Additionally, FMD secured a $99.09 million contract to perform emergency diesel generator overhauls on six nuclear submarines. To improve efficiency, FMD is implementing a “Pit Stop” methodology and robotic welding to reduce maintenance periods from months to weeks.

## Claims

- Fairbanks Morse Defense was awarded a $99.09 million contract for submarine life-extension services. (corroborated by 2 sources)
- The FMD contract covers Emergency Diesel Generator overhauls on six nuclear submarines through 2030. (corroborated by 2 sources)
- The Navy aims to extend the service life of Ohio- and Los Angeles-class submarines by up to 14 years. (corroborated by 2 sources)
- FMD uses robotic welding that can reduce manual welding times by up to two-thirds. (corroborated by 2 sources)
- The Pit Stop methodology can reduce depot maintenance periods from months to weeks. (corroborated by 2 sources)
- Fluor Marine Propulsion LLC was awarded a $2.4 billion contract to manage Naval Nuclear Laboratory facilities. (single source)
- The Naval Nuclear Laboratory operates sites in Pennsylvania, New York, and Idaho. (single source)

## Timeline

### 2026-10-27: US Navy awards major contracts for submarine and nuclear propulsion support

The US Navy has awarded a $2.4 billion contract to Fluor Marine Propulsion for nuclear laboratory operations and a $99.09 million contract to Fairbanks Morse Defense for submarine life-extension services.

3 sources. https://clstr.news/cluster/us-navy-awards-major-contracts-for-submarine-and-nuclear-propulsion-support

### 2026-10-20: Fairbanks Morse Defense breaks ground on $60 million submarine component facility

Fairbanks Morse Defense has begun construction on a $60 million facility in Mississippi to produce submarine components, supported by U.S. Navy and Australian AUKUS investments.

2 sources. https://clstr.news/cluster/fairbanks-morse-defense-breaks-ground-on-60-million-submarine-component-facility

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Cite as: US submarine industrial base expansion. CLSTR, https://clstr.news/situations/us-submarine-industrial-base-expansion