Skip to main content

NASA is designing a quieter supersonic plane, the X-59

If you’ve ever wondered why airplane speeds don’t seem to be evolving much, it’s not because of a lack of interest or a lack of technology. While it is possible to build supersonic planes — ones that travel above the speed of sound — there are bans on commercial flights at such speed over the U.S. because of the noise they create. The booms caused by supersonic flight are tremendously loud, at around 110 decibels, which causes major disturbances to people on the ground.

So NASA is working on a new design of a supersonic plane which, instead of causing a sonic boom, causes a quieter sonic “thump.” The hope is that if this technology can be developed, it could enable faster flights without disturbing people living below the flight paths.

The X-59 small-scale model is seen in NASA Glenn’s 8- by- 6-foot Supersonic Wind Tunnel.
The X-59 small-scale model is seen in NASA Glenn’s 8- by- 6-foot Supersonic Wind Tunnel. The model was inverted with the shock wave sensor array mounted on the tunnel’s ceiling during the testing. NASA Glenn

NASA’s plan is to develop the X-59 Quiet SuperSonic Technology (QueSST) plane, and recently engineers on the Commercial Supersonic Technology (CST) project tested out a small-scale model of the design in a supersonic wind tunnel at NASA Glenn to see how it would fare at high speeds.

“This is the team’s opportunity to get data at the low sound levels produced in the tunnel,” said Clayton Meyers, deputy project manager of the CST project, in a statement. “It all comes down to our ability to measure the thump.”

The testing used a model a foot and a half long, monitored by cameras and sensors in the wind tunnel. The results look promising, as they match previous computer models of the shock waves’ position and strength, suggesting the design could be effective for quieter supersonic flight.

“With the X-59, we want to demonstrate that we can reduce the annoying sonic booms to something much quieter, referred to as ‘sonic thumps,’” said John Wolter, lead researcher on the X-59 sonic boom wind tunnel test. “The goal is to provide noise and community response data to regulators, which could result in new rules for overland supersonic flight. The test proved that we don’t just have quieter aircraft design, but that we also have the accurate tools needed to predict the noise of future aircraft.”

A full-scale X-59 is currently being built, with the aim to begin test flights later this year.

Editors' Recommendations

Georgina Torbet
Georgina is the Digital Trends space writer, covering human space exploration, planetary science, and cosmology. She…
SpaceX already has a date in mind for next Starship launch
spacex cinematic video previews starship test

SpaceX launched the mighty Starship for the first time in April last year, but it took a full seven months before it became airborne again.

Following the second test flight in November, SpaceX managed to get the Starship off the launchpad again just four months later in a spectacular flight that took place last week.

Read more
Take a high-speed ride on SpaceX’s emergency escape chute
A view from inside Crew Dragon's emergency escape chute.

SpaceX has put a Crew Dragon on Pad 40 at the Kennedy Space Center in Florida for the first time. This means that going forward, SpaceX will have two pads to choose from when sending astronauts to space.

Up to now, crews launching on SpaceX’s Crew Dragon spacecraft lift off from Pad 39A at Kennedy, but having another launch site available gives NASA and SpaceX greater flexibility when planning missions by easing pressure on teams if scheduling issues and traffic conflicts arise.

Read more
NASA and Boeing start fueling Starliner spacecraft for first crewed flight
Engineers fuel Boeing's Starliner spacecraft.

Engineers fuel Boeing's Starliner spacecraft. Boeing Space

After numerous delays, NASA and Boeing look more certain than ever to launch the first crewed flight of the CST-100 Starliner spacecraft in May.

Read more