The 'Phantom' large unmanned surface vessel. According to foreign media reports, a US unmanned systems company recently released the "Phantom" large unmanned surface vessel. It is 52 meters long and has a maximum speed of 30 knots, designed to provide sustained anti submarine, reconnaissance, and strike capabilities for the US Navy. The "Ghost" platform is divided into two versions, each optimized for specific tasks. The "Silent Endurance Type" adopts a sail like design, with ultra long range and low acoustic characteristics, suitable for long-term and large-scale sea patrols. The "stealth strike type" eliminates similar designs and adopts a lower hull profile with higher speed, mainly used for combat. The "Ghost" large unmanned surface vessel can patrol at sea continuously for weeks or even months with the help of autonomous propulsion and operating systems, without the logistical burden and crew fatigue limitations of traditional warships. This sustained and economical anti submarine warfare capability is of great significance to the navy. (Looking into the New Era)