Constellation-class
The US Navy's FREMM-derived next-generation frigate — intended as a 20-hull class to close the force-structure gap, cut to 2 half-built hulls when the program was canceled in November 2025 amid runaway redesign and cost growth.
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The Constellation-class programme was curtailed in November 2025: the U.S. Navy cancelled four contracted ships and retained Constellation and Congress for continued construction.
Overview
The Constellation-class guided-missile frigate programme envisaged at least 20 ships before its November 2025 curtailment, according to the Congressional Research Service. The U.S. Navy announced on 25 November 2025 that it would discontinue four contracted ships while continuing construction of Constellation (FFG-62) and Congress (FFG-63). In April 2026, GAO recorded both retained ships as under construction, with Navy officials assessing what capability, if any, they would provide. The Navy’s May 2026 shipbuilding plan retained two planned FFG deliveries while cancelling future FFG-62 acquisitions.
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