In a strategic realignment of American maritime procurement, United States Navy Secretary John Phelan announced on Friday that the service will pursue a new frigate class based on the Huntington Ingalls Industries (HII) Legend-class National Security Cutter. This decision marks the formal cancellation of future orders for the Constellation-class frigate, a program previously based on the Italian FREMM design by Fincantieri Marinette Marine. The pivot is a central component of President Donald Trump’s “Golden Fleet” plan, prioritizing American-made designs, domestic shipyards, and localized supply chains to rectify systemic delays and cost overruns that have plagued recent naval construction.
Quantitative Framework of the Transition
The transition from the Constellation-class to the Legend-class derivative is informed by specific fiscal and technical performance metrics:
- Timeline for Delivery: The first hull of the new frigate class is projected to launch in 2028.
- Design Commonality Degradation: The Constellation-class was originally intended to maintain 80% commonality with its Italian parent design; however, radical design changes reduced this figure to 15%, leading to the project’s instability.
- Historical Production Volume: HII has successfully delivered 10 Legend-class cutters to the U.S. Coast Guard, with the final vessel delivered in October 2023.
- Legacy Obligations: Despite the pivot, two Constellation-class frigates remain under construction at Fincantieri’s Wisconsin yard. The original 2020 contract for the class was valued at $22 billion for 20 vessels.
- Industrial Infrastructure: HII will utilize existing production lines currently servicing Arleigh Burke-class destroyers, America-class amphibious assault ships, and San Antonio-class transport docks.
Strategic Realignment of American Naval Shipbuilding
The decision to adopt a “proven American design” reflects a broader geopolitical shift toward industrial sovereignty. The failure of the Constellation-class program serves as a case study in the technical risks associated with “Americanizing” foreign naval architecture. While the Italian FREMM design is highly regarded globally, the Department of the Navy’s requirement for extensive modifications created a “design-while-build” scenario that escalated costs and extended timelines.
By integrating the frigate program into the “Golden Fleet” framework, the administration aims to bolster the domestic defense industrial base. The move to HII—the largest military shipbuilder in the United States—is intended to streamline the supply chain. Secretary Phelan’s emphasis on “American shipyards” suggests a move away from international partnerships in favor of a closed-loop domestic manufacturing ecosystem, which the administration argues is essential for long-term national security and maritime readiness.
Operational Risks and Industrial Capacity of the Golden Fleet
Expert synthesis of this pivot suggests both significant opportunities for stabilization and inherent technical uncertainties. Admiral Darryl Caudle, Chief of Naval Operations, noted that utilizing an established hull form will theoretically reduce “cost, schedule, and technical risk.” Because the Legend-class is already operational within the U.S. Coast Guard, the hull’s hydrodynamic properties and manufacturing sequences are well-understood.
However, several critical factors remain unresolved:
- Combat Systems Integration: It remains unclear how much the Legend-class design must be modified to accommodate Navy-grade sensors, vertical launch systems (VLS), and electronic warfare suites. Excessive modification could replicate the “commonality trap” that compromised the Constellation-class.
- Scalability: While HII is the lead yard, the Navy has indicated that “follow-on ships” may be built at other domestic yards. Maintaining design configuration control across multiple shipbuilders will be a primary management challenge.
- Strategic Capability Gap: The Navy must ensure that a frigate derived from a National Security Cutter—originally designed for law enforcement and maritime patrol—can survive high-intensity peer-to-peer naval combat.
The Navy’s new framework, as articulated by Secretary Phelan, seeks to compress the shipbuilding timeline. The success of this initiative will depend on the service’s ability to resist “requirement creep” and adhere to the “American-made” mandate without sacrificing the advanced lethality required for modern maritime theaters.
