How Lockheed Martin Designed the World's Weirdest, Quietest Supersonic Jet

An anonymous reader quotes a report from Fast Company: The Lockheed Martin X-59 is probably the strangest airplane ever designed. Its razor-sharp nose takes half of the airplane's length; there's no cockpit in sight; the wings are tiny compared to the entire fuselage; and its oversized tail engine looks like a weird hump about to fall off. Of course, there's a method to this madness. The design is the secret sauce that has produced a true unicorn: a supersonic jet that doesn't boom the hell out of people and buildings on the ground. [...] The X-59, developed alongside NASA, is designed as an experimental jet that NASA will use to test just how big of a boom people on the ground are willing to accept from a supersonic aircraft. According to Dave Richardson, the program director for X-59 at Lockheed Martin, with this new design, people shouldn't expect much of a boom at all. The X-59's "quiet" supersonic boom isn't made possible by expensive magical materials or exotic engines, Richardson explains. "There is no radical technology in the airplane itself. It really is just the shape of the aircraft." And if the shape looks more like an anime alien spaceship than an actual vehicle created by human beings, that's because it was dreamed up in another dimension -- by computers and humans -- through special software created by the Bethesda, Maryland, company's engineers. [...] Richardson and his team learned a few important lessons about designing for supersonic boom. First, the heavy, bulky parts of the plane needed to be as far back as possible. "We really put nothing out in the front, but we want to have that long, fine ratio," he says. This resulted in an extremely fine nose and body, with no surface interruptions that can produce noise when the plane breaks the sound barrier. "You want to be able to stretch out and manage the different shocks across the length of the airplane," he adds. They also learned that anything that causes discontinuity in the airplane's shape -- for instance a windshield or canopy -- can add to the boom effect. This led them to get rid of the windshield altogether. Instead, the X-59 uses an external vision system, which is the only advanced technology in the plane, according to Richardson. The pilot navigates using a camera, viewing the outside through a large display. This system had to undergo rigorous certification by the Federal Aviation Administration for use in the national airspace. [...] The X-59 has been designed to manage and distribute shockwaves differently from the very start while also flying at slower speeds than the Concorde (the Concorde's cruising speed was 1,350 mph, while the X-59 will cruise at around 925 mph). "I think most people look at the airplane and they say, 'Wait, something's wrong,'" Richardson says. "[They think] it's too long. The landing gear is too far in the back. And why is the nose so long?" The inaugural flight is scheduled for early 2024, notes Fast Company. "If they achieve their objectives, there's no reason why aircraft manufacturers can't take the concepts they discovered and turn them into commercial airliners, Richardson says." "Someday, people might be able to look up and see an alien shape in the sky, with the X-59's design transcending experimental nature and ushering in a new era for high-speed travel across the globe."

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