The 127-metre Austal trimaran seaframe is the platform for the LCS's mission and weapon systems. This seaframe provides superior seakeeping and aviation as a result of its long, slender central hull and smaller side hulls ("amahs"). The trimaran hullform provides a large internal mission deck with a high payload carrying capacity. Located above the mission bay is the enormous flight deck capable of conducting dual H-60 helicopter operations. The vertical location of the flight deck on the trimaran hull form provides the highest flight deck elevation on a combatant ship other than a major amphibious vessel or aircraft carrier.
The launch of "Coronado" (LCS 4) closely follows the christening of the 103-metre USNS "Spearhead" (JHSV 1) and the celebration of the keel laying ceremony for "Choctaw County" (JHSV 2). Modular construction has also begun on JHSV 3 and "Jackson" (LCS 6) – the first of the 10-ship US Navy contract awarded to Austal, as the prime contractor, a year ago - in Austal's 65,000 square metre Module Manufacturing Facility (MMF). Austal also has "Montgomery" (LCS 8) and JHSV 3 through JHSV 7 under contract.
