Boomless cruise

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Boom Overture

Boom Overture is a supersonic airliner under development by Boom Technology. The aircraft is designed to cruise at a maximum speed of Mach 1.7 or 975 knots (1,806 km/h; 1,122 mph), and is expected to reach supersonic speeds without causing a sonic boom at ground level by taking advantage of a physics phenomenon known as mach cutoff. It is expected to carry 60 to 80 passengers, depending on configuration, with a range of 4,250 nautical miles [nmi] (7,870 km; 4,890 mi). Boom aims to introduce the Overture in 2029. The company projects a market for over 1,000 supersonic aircraft serving more than 600 viable routes, with fares comparable to business class. Featuring a delta wing design similar to that of the Concorde, the Overture is expected to use composite materials in its construction. A 2022 redesign specified four medium bypass (non-afterburning) turbofan engines, each reportedly producing 180 kilonewtons (40,000 pounds-force) of thrust.

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• Boom Supersonic Announces Boomless Cruise

  Boomless Cruise is based on well-established physics known as Mach cutoff, in which a sonic boom refracts in the atmosphere and never reaches the ground. This effect is achieved by breaking the sound barrier at a high enough altitude, with exact speeds varying based on atmospheric conditions. "XB-1 broke the sound barrier three times during its first supersonic flight—without an audible boom," said Blake Scholl, Founder and CEO of Boom Supersonic. "This confirms what we've long believed: supersonic travel can be affordable, sustainable, and friendly to those onboard and on the ground. With this success, we're bringing Boomless Cruise to Overture, unlocking faster travel on even more routes." [...] Specialized microphone arrays placed in strategic locations under the flight path confirmed that sonic booms did not reach the ground as XB-1 flew at a top speed of Mach 1.12. The data collected during XB-1's multiple supersonic runs allowed Boom to validate sonic boom models and improve the algorithms that predict operating in Mach cutoff. This data shows that supersonic flight without the disturbance of a sonic boom is possible—opening the door to supersonic travel over land onboard Boom's supersonic airliner, Overture. Boomless cruise enables Overture to fly at speeds up to Mach 1.3 without an audible boom, reducing U.S. coast-to-coast flight times by up to 90 minutes. International routes with overland segments can also benefit from increased speeds. [...] MOJAVE, Calif. and DENVER, Feb. 10, 2025 /PRNewswire/ -- Boom Supersonic, the company building the world's fastest airliner, Overture, today announced Boomless Cruise for its supersonic airliner, enabling supersonic travel over land without an audible sonic boom. During its historic first supersonic flight on January 28, 2025, Boom's demonstrator aircraft, XB-1, broke the sound barrier three times without generating a sonic boom that reached the ground, demonstrating that quiet supersonic travel is possible. Continue Reading Source: Pennsylvania State University Acoustical Model of Mach Cutoff Flight Source: Pennsylvania State University Acoustical Model of Mach Cutoff Flight

• How Boom Supersonic's Boomless Cruise Mode Works

  Boomless Cruise, a supersonic flight mode that prevents sonic booms from reaching the ground by leveraging atmospheric refraction.

• What Is Boomless Cruise? Supersonic Flight Without the Boom

  Boomless Cruise occurs under specific atmospheric conditions that allow shockwaves to refract away from the ground, meaning people below hear

• NASA captures photo of Boom’s landmark ‘boomless’ supersonic flight

  "Boomless Cruise enables Overture to fly at speeds up to Mach 1.3 without an audible boom, reducing U.S. coast-to-coast flight times by up to 90 minutes," the press release states. "XB-1's second supersonic flight marked the conclusion of its groundbreaking flight test program, and the historic aircraft will now return to her birthplace in Denver, Colorado. Boom will now focus its full efforts on scaling XB-1 learnings and technology to build the Overture supersonic airliner, which already has 130 orders and pre-orders from United Airlines, American Airlines and Japan Airlines. In 2024, Boom completed construction on the Overture Superfactory in Greensboro, North Carolina, which will scale to produce 66 Overture aircraft per year," Boom said in their release. [...] "This image makes the invisible visible—the first American-made civil supersonic jet breaking the sound barrier. Thanks to Geppetto's exceptional flying and our partnership with NASA, we were able to capture this iconic image," said Blake Scholl, Founder and CEO of Boom Supersonic. "We also confirmed that XB-1 made no audible sonic boom, which paves the way for coast-to-coast flights up to 50% faster." NASA teams also collected sound data and Boom confirmed that the breaking of the sound barrier was truly "boomless," meaning no supersonic boom reached the ground, a feature they are hoping to perfect in the development of their much larger Overture passenger jets. [...] On Feb. 10, during the second supersonic flight, officials from NASA used what is called Schlieren photography to capture the flight. Schlieren photography is a technique that helps visualize shockwaves during supersonic flight. According to Boom, Schlieren images require ideal conditions and "exceptional flying" by the pilot, which they say Tristan "Geppetto" Brandenburg achieved. NASA used ground telescopes with special filters that detect air distortions around the jet.

• boomless cruise

  Noun. boomless cruise (countable and uncountable, plural boomless cruises). (aviation) A technique for supersonic flight where the sonic boom does not reach ...Read more