For decades, L3Harris has designed and manufactured the rugged, high-density power conversion and distribution systems that keep the Navy's most capable undersea platforms operational. Sailors rely on these systems as they carry out precise, demanding work in some of the most unforgiving conditions on the planet.
"The Navy trusts us with the most critical systems on its most advanced platforms, and that is not something we take lightly," said Nino DiCosmo, President, Maritime, L3Harris. "Every power system we deliver has to work the first time and every time after that, whether a submarine is on its first patrol or its fiftieth."
The Backbone of the Undersea Fleet
The Virginia-class submarine is one of the most capable undersea platforms ever built. It is also one of the most electrically complex. Sensors, weapons systems, propulsion and crew systems all draw from a power architecture that must perform flawlessly on every mission, at every depth, for months at a time.
L3Harris provides the power distribution systems and universal modular masts for every Virginia-class submarine in the fleet. These are not peripheral systems. They are mission-critical infrastructures that keep weapons ready, sensors active and crews safe during extended undersea operations.
That same proven capability is now being carried forward to the Columbia-class submarine program, the Navy's next-generation strategic deterrent and one of the most consequential shipbuilding programs in American history. When Columbia-class submarines begin their patrols, they will be powered by L3Harris systems built to the same exacting standards that have defined the Virginia-class program for years.
Engineering for the Extremes
Designing power systems for submarines is not like designing power systems for any other environment. The requirements for shock resistance, electromagnetic compatibility, thermal performance and long-term reliability go far beyond what most applications demand.
L3Harris engineers its products to meet those requirements without compromise, designing and testing every system to perform across the full range of conditions a submarine crew might encounter. That discipline extends across the entire portfolio, from switchgear and power protection systems to advanced power conversion technologies suited to the growing demands of modern naval platforms.
Ready for What Comes Next
Naval platforms are growing more electrically complex with every generation. Advanced radar systems, directed energy weapons and next-generation propulsion architectures will place extraordinary demands on shipboard power infrastructure, and the margin for error will only shrink.
L3Harris is investing in the technologies that will meet those demands, ensuring that the Navy's most advanced platforms remain ready, resilient and effective for decades to come. That investment reflects a long-term commitment to American naval power, from the systems aboard today's fleet to the platforms that will define the future fleet.
