That’s Greg Sancoff’s vision, at least. The current prototype can reach only 30 knots (just 10 knots faster than a souped-up Somali skiff), although Juliet Marine says a production model will nearly double that speed. The secret, Sancoff says, is supercavitation, a process previously used only by torpedoes. The vessel’s counter-rotating propeller screws, spun by 4,000-horsepower gas engines, and strategically positioned vents create a pocket of gas around each pontoon. “If you can put a blanket of gas around that hull,” Sancoff says, referring to the pontoons, “you can reduce the friction by 900 times. We’re basically boring two foam tunnels, five feet or six feet underwater, and we’re flying through them.” In addition to speed, supercavitation produces stability and fuel efficiency. Ghost can power through seven-foot waves with hardly a bump and its range is huge: about 800 miles.