On Thursday, McCall’s dream, the 59-foot Glider SS18 from U.K.-based Glider Yachts, was presented to the world at the London On-Water show. With its sci-fi profile, the SS18’s 17-foot-wide cockpit can carry four passengers and a “pilot,” who flies the boat. McCall, an engineer and former yacht captain, says the company used aerospace technology in the design and build processes. The boat’s geometry, specifically how its 60-foot aluminum hulls interact with air and water, is key to its soft ride. “The hull form, propulsion, and our Stability Control System actually tune to the sea conditions, which allows the boat to glide over the waves,” says McCall. Its trim is controlled by moving the fuel fore and aft, or taking on water, which serve as ballast to match sea conditions. That’s better than using conventional trim tabs that would add drag to the hull. here