L3Harris Technologies has secured its largest full-rate production contract for U.S. Navy submarine communications systems, receiving an award from General Dynamics Electric Boat to deliver 26 shipsets for Virginia- and Columbia-class submarines, the company stated.
Announced on 18 February 2026, the contract covers production for both submarine classes through 2033, with support potentially extendable to future Columbia-class boats and allied navies.
According to L3Harris, the communications systems are designed to enhance situational awareness and connectivity for submarine crews while supporting the operational requirement for stealth.
Nino DiCosmo, President of Maritime, Space and Mission Systems at L3Harris, said: “The ability for submarines to operate undetected is vital to the U.S. Navy’s strategic advantage.”
He added: “With decades of experience in submarine technology and in partnership with General Dynamics Electric Boat, L3Harris will deliver highly reliable, undetectable communications systems to enhance operational effectiveness.”
The company said the award builds on its longstanding involvement in U.S. Navy submarine programmes, including support for Ohio- and Los Angeles-class vessels.
The Virginia-class submarines are nuclear-powered fast-attack boats designed for operations in both littoral and deep-sea environments. The Columbia-class, currently under development, is intended to replace the Ohio-class ballistic missile submarines as the core of the United States’ sea-based nuclear deterrent.
