[NASA] About Low Boom Flight Demonstrator (LBFD) Project

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NASA’s X-59 quiet supersonic research aircraft cruises above Palmdale and Edwards, California, during its first flight, Tuesday, Oct. 28, 2025. The aircraft traveled to NASA’s Armstrong Flight Research Center in Edwards, California.

NASA/Lori Losey

The Low ***** Flight Demonstrator project (LBFD) is part of NASA’s effort to help enable new aircraft noise standards that are required to open the market to commercial supersonic flight over land.

The federal government banned all civilian supersonic flights over land more than fifty years ago due to sonic ***** noise. If new standards are established, the U.S. aviation industry can position itself to lead the commercial supersonic market, and passengers will benefit from significantly shorter travel times.

Over the past decade, fundamental research and experimentation have demonstrated the possibility of supersonic flight with greatly reduced sonic ***** noise – one of several key areas needed to transform commercial supersonic flight.  

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NASA’s X-59 quiet supersonic research aircraft sits on a ramp at Lockheed Martin Skunk Works in Palmdale, California, during sunset. The one-of-a-kind aircraft is powered by a General Electric F414 engine, a variant of the engines used on F/A-18 fighter jets. The engine is mounted above the fuselage to reduce the number of shockwaves that reach the ground. The X-59 is the centerpiece of NASA’s Quesst mission, which aims to demonstrate quiet supersonic flight and enable future commercial travel over land – faster than the speed of sound.

Lockheed Martin Corporation/Garr

The LBFD project will demonstrate a reduced sonic ***** by utilizing a purpose-built experimental aircraft designated the X-59.

The LBFD project supports a multi-phase effort aimed at demonstrating the X-59’s ability to fly supersonic without generating loud sonic booms. The LBFD project leads Phase 1 of the Quesst mission, involving the design, fabrication, ground tests, and checkout flights of the X-59.

After ensuring the aircraft is safe and performing as expected, the LBFD project will support the rest of the mission team during Phase 2 to prove the aircraft is producing a quiet sound to people on the ground and is safe for operations in the National Airspace System.

At the conclusion of Phase 2, the X-59 aircraft will transfer to the Integrated Aviation Systems Program’s Flight Demonstrations and Capabilities project.

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Last Updated

Mar 12, 2026

Editor

Jim Banke

Contact

Sasha Ellis

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