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US Navy's First Flight II Amphibious Ship Harrisburg LPD 30 Clears Builder's Trials With SPY-6 Radar
HII's Ingalls Shipbuilding announced completion of builder's sea trials for Harrisburg, the US Navy's first San Antonio-class Flight II amphibious transport dock, on November 3. The multi-day evaluation tested propulsion, steering, ship-control equipment, communications, mission systems and combat-system integration before the vessel returned to the Pascagoula shipyard. With major trial objectives met, LPD 30 will prepare for acceptance trials ahead of delivery expected later in 2026. Harrisburg is one of three Flight II ships under construction at Ingalls, alongside Pittsburgh and Philadelphia, and completion of builder's trials does not yet constitute Navy acceptance.