French and Italian FREMM variants already differ in displacement, dimensions, and mission emphasis across a common family. The American Constellation is more than twenty percent heavier than the French ship, nearly ten metres longer, and substantially altered above and within the hull. It is therefore closer to a purchased hull concept supporting a new American warship than a straightforward reuse of a proven design. Its quoted 6,000-nautical-mile range at 16 knots also trails Iver Huitfeldt’s 9,000 miles at 18 knots, despite the American ship’s oceanic shaping. The smaller 57 mm gun and other immediately visible features matter to presence diplomacy because a design that needs extensive explanation can send a weaker signal.
Chapter · 35:10-42:05
How Constellation reshapes the FREMM baseline
Comparing French and Italian FREMM hulls with the larger American Constellation shows how national requirements can turn a shared baseline into a substantially new ship.