NASA X-59 Supersonic Aircraft: Speed, Sonic Boom & Mission

Quick answer: What is the NASA X-59 Supersonic Aircraft? NASA X-59 is a single-seat experimental aircraft built by Lockheed Martin Skunk Works for NASA’s Quesst mission. Its long, carefully shaped body is designed to fly supersonically, at about Mach 1.4 and 55,000 feet, while turning a loud sonic boom into a much quieter “thump” that regulators can study.

NASA X-59 Supersonic Aircraft Explained: Quiet Supersonic Jet (2026)

Last updated: 3 November 2026. Flight-test figures reflect NASA and Lockheed Martin information published up to that date.

For more than fifty years, one problem has kept routine supersonic travel away from most of the world’s skies: the sound. A conventional supersonic aircraft drags a loud, cracking sonic boom across everything beneath its flight path, and that noise is the reason many countries restrict faster-than-sound flight over land.

NASA built an aircraft specifically to attack that problem. It is called the NASA X-59 Supersonic Aircraft, and in 2026 it finally began showing what it can do.

The NASA X-59 Supersonic Aircraft is not an airliner and will never carry passengers. It is a flying laboratory. Its job is to produce measurable, repeatable data on how loud a shaped supersonic aircraft really is, and how people on the ground react to that sound. That evidence could help aviation regulators decide whether quieter supersonic flight over land should be allowed in the future.

This guide explains how the X-59 works, how fast it has flown, what “quiet” actually means, how it compares with Concorde, what has and has not been proven so far, and why the story matters for anyone who travels by air.

Key Takeaways

• Purpose: The NASA X-59 Supersonic Aircraft is a research aircraft, not a prototype airliner. NASA says it will never carry passengers.
• Design speed: Mach 1.4 (about 924 mph or 1,487 km/h) at roughly 55,000 feet.
• Record so far: Mach 1.53 (about 1,010 mph) and altitudes above 56,000 feet, across 41 flights in its first year.
• Key trick: a very long nose, a top-mounted engine and carefully shaped surfaces spread out shock waves so they do not merge into one loud boom.
• Still unproven: the quietness of the aircraft’s sound on the ground has to be confirmed through acoustic validation flights and public response studies that are still ahead.
• Why it matters: the U.S. aviation regulator has already proposed replacing the 1973 overland ban with a noise-based standard, and X-59 data is meant to inform that kind of rule.

Table of Contents

1. Why Everyone Is Searching for NASA X-59 Right Now
2. What Is NASA X-59?
3. NASA X-59 Specifications at a Glance
4. What Is a Sonic Boom, and Why Is It a Problem?
5. How Does NASA X-59 Work?
6. How Fast Is NASA X-59?
7. The X-59 Sonic Boom: How Quiet Is a “Thump”?
8. The NASA Quesst Mission Explained
9. NASA X-59 Timeline: From Contract to First Year of Flight
10. NASA X-59 vs Concorde
11. How X-59 Fits With Other Supersonic Projects
12. Why Regulation Matters: The 1973 Ban and the New FAA Proposal
13. Advantages and Limitations of NASA X-59
14. Common Mistakes and Red Flags in X-59 Coverage
15. What Happens Next
16. NASA X-59 FAQs
17. Final Verdict
18. TL;DR

Why Everyone Is Searching for NASA X-59 Supersonic Aircraft Right Now

Search interest in the NASA X-59 Supersonic Aircraft comes from several different questions, and a useful article should answer all of them. These are the five main reasons people are looking it up.

1. They saw a headline about speed. News about Mach 1.53 and 56,000 feet made the aircraft look like a new speed record. Readers want to know whether that is true (it is not a record for aircraft in general, but it is a record for this aircraft).
2. They are curious about the odd shape. The X-59 looks unlike any jet in service. People want to know why the nose is so long and why there is no front window.
3. They miss, or have never experienced, supersonic travel. Concorde retired in 2003. Many readers want to know whether fast passenger travel is coming back.
4. They live under flight paths. Community response flights will eventually fly over selected places in the United States, so residents want to know what the sound will be like.
5. They follow the policy angle. Regulators in the United States have started moving on the old overland ban, and readers want to understand how the X-59 connects to that process.

The article below follows those five threads. Where something is confirmed, it says so. Where something is still being tested or is only proposed, it says that too.

What Is NASA X-59?

The X-59 Quiet SuperSonic Technology aircraft, usually shortened to X-59 or QueSST, is an X-plane. That label is used for experimental aircraft built to test an idea rather than to enter service. NASA’s earlier X-planes include the Bell X-1, the first aircraft to break the sound barrier in level flight.

The X-59 was designed and built by Lockheed Martin’s Skunk Works division in Palmdale, California, under a NASA contract of about $247.5 million awarded in April 2018. It belongs to NASA’s Low Boom Flight Demonstrator project, and its flight programme is run from NASA’s Armstrong Flight Research Center at Edwards, California.

A helpful way to think about it: if a normal supersonic jet is a speedboat that throws up a big, noisy wake, the X-59 is a boat with a hull shaped to leave a gentle, spread-out wake. The speed is similar. The disturbance behind it is not.

What the X-59 Is Not

• It is not a passenger jet or a prototype of one.
• It is not a fighter, although it uses an engine from the same family as military jets.
• It is not silent. It is designed to make a quieter sound, not no sound.
• It is not a speed-record aircraft. Its purpose is acoustic research.

NASA X-59 Supersonic Aircraft Specifications at a Glance

Specification	Detail
Official name	X-59 Quiet SuperSonic Technology (QueSST)
Builder	Lockheed Martin Skunk Works (Palmdale, California)
Programme	NASA Quesst mission, Low Boom Flight Demonstrator project
Crew	One test pilot
First flight	28 October 2025 (67 minutes, about 230 mph, about 12,000 feet)
First supersonic flight	5 June 2026 (about Mach 1.1)
Design cruise	Mach 1.4 at about 55,000 feet
Highest reported speed	Mach 1.53 (about 1,010 mph / 1,625 km/h), September 2026
Highest reported altitude	More than 56,000 feet (about 17,000 m)
Length	About 99.7 ft (30.4 m)
Wingspan	About 29.5 ft (9 m)
Height	About 14 ft (4.2 m)
Maximum take-off weight	About 32,300 lb (14,650 kg)
Engine	One General Electric F414-GE-100, about 22,000 lbf of thrust with afterburner
Engine position	Mounted on top of the fuselage
Noise target	About 75 PLdB (perceived loudness decibels) on the ground
Contract value	About $247.5 million (design, build and delivery)

Sources: NASA and Lockheed Martin information, as reported in NASA programme updates through late October 2026. Dimensions are rounded and vary slightly between sources.

What Is a Sonic Boom, and Why Is It a Problem?

To understand the X-59, you first need to understand the noise it is designed to avoid.

How a Sonic Boom Forms

Any moving aircraft pushes air aside and creates pressure waves, a bit like the ripples in front of a swimmer. Below the speed of sound, those waves travel ahead of the aircraft and the air “knows” it is coming. Above the speed of sound, the aircraft outruns its own pressure waves. They pile up and form shock waves, which are thin regions where pressure jumps abruptly.

On a conventional supersonic aircraft, several shock waves form at the nose, the wings, the tail and the engine inlets. As they travel down through the atmosphere, they tend to merge, so the ground hears a sharp pressure spike followed by a sharp drop. That is the double crack many people associate with Concorde and military jets.

A Common Myth

A sonic boom is not a one-time bang when an aircraft “breaks the sound barrier”. The shock waves are produced continuously as long as the aircraft stays supersonic, and they sweep along the ground in a path beneath the flight track. People inside that path hear the boom as the waves pass.

Why It Matters for Travel

In 1973, the United States banned civil aircraft from flying faster than Mach 1 over land, because of concern about sonic boom noise. Many other countries have similar restrictions. That is why Concorde flew at full speed only over the ocean, and why routes over land were slower. The ban helped to shape the commercial history of supersonic flight and is a big reason there has been no scheduled supersonic passenger service since 2003.

How Does NASA X-59 Work?

The central idea is simple to state and hard to execute: do not let the shock waves merge. If they stay separated and gentle, the pressure change reaching the ground feels less like a crack and more like a soft thud.

Four design choices work together to make that possible.

1. A Very Long, Slender Nose

The NASA X-59 Supersonic Aircraft‘s nose and forward fuselage make up roughly one third of the aircraft’s length. A long, tapered shape lets pressure build up gradually rather than all at once. Instead of one strong shock at the front, the airflow is nudged over a longer distance, which keeps the leading disturbance weak.

2. Carefully Shaped Wings and Body

The wings are short, swept and narrow, with a span of only about 29.5 feet on an aircraft close to 100 feet long. Their shape, the contours of the fuselage and the tail surfaces were all tuned using computer simulation and wind-tunnel testing, so that the pressure waves they create line up in a favourable order rather than stacking into a peak. Think of it as choreographing many small ripples so they never combine into one wave.

3. An Engine on Top

The F414-GE-100 engine sits on top of the fuselage rather than beneath it. That placement uses the aircraft body to shield the ground from the shock waves generated by the engine inlet and exhaust area. The single engine also keeps the airframe narrow, which helps the overall shaping.

4. A Cockpit With No Front Window

A conventional windshield would have disrupted the airflow over the long nose, so the NASA X-59 Supersonic Aircraft does not have a forward-facing window. Instead, the pilot uses the eXternal Vision System, or XVS. It combines cameras and a high-resolution cockpit display to give a view of what is ahead, with the aircraft’s navigation and flight information overlaid.

This is one of the most unusual features of the aircraft, and a good example of how digital technology makes shapes possible that would have been unsafe or impractical in earlier decades. The pilots have also trained on the aircraft in a systems-test rig nicknamed the “aluminum bird”, where flight computers and subsystems are commanded as if the aircraft were flying, while it stays on the ground.

How Fast Is NASA X-59?

This is one of the most searched questions, and the honest answer has three parts: the speed it is designed to fly, the fastest it has flown so far, and why those numbers do not convert neatly into miles per hour.

Design Speed: Mach 1.4

The X-59 is designed to cruise at Mach 1.4 at about 55,000 feet. That is about 924 mph (1,487 km/h) in the cold, thin air at that altitude. These are the conditions NASA plans to use when it flies over communities to gather public reaction.

Fastest Reported Speed: Mach 1.53

During the week of 21 September 2026, NASA reported that the aircraft reached Mach 1.53, about 1,010 mph (1,625 km/h). That is its highest reported speed to date and is well above its cruise speed. It was part of a record week of six flights, which brought the X-59 to 38 total test flights, according to NASA.

Why Mach Numbers Do Not Convert to One Fixed mph Value

A Mach number is a ratio: how fast the aircraft is moving compared with the local speed of sound. The speed of sound depends on air temperature, so it changes with altitude. At sea level on a mild day it is roughly 760 mph. At the very cold altitudes where the NASA X-59 Supersonic Aircraft flies, it is closer to 650 to 660 mph. So Mach 1.4 is about 924 mph up high, but would be a lot faster at sea level.

Milestone	Mach number	Approximate speed	Details
First supersonic flight (5 June 2026)	About 1.1	About 713 mph (1,147 km/h)	43,400 ft, 81-minute flight
First mission-condition flight (12 June 2026)	1.4	About 924 mph (1,487 km/h)	About 55,000 ft, the planned research condition
Fastest reported (September 2026)	1.53	About 1,010 mph (1,625 km/h)	Flight-envelope expansion testing

Is Mach 1.53 a Record?

It is the fastest the NASA X-59 Supersonic Aircraft has flown, but it is not a world record. Military jets and rockets have flown far faster. NASA’s own priority is not top speed. Pushing past the design cruise speed is part of “flight-envelope expansion”, which checks that the aircraft behaves safely across a wider range than it will use for its research flights.

The X-59 Sonic Boom: How Quiet Is a “Thump”?

The sonic boom story is the heart of the X-59 project, so it deserves a careful explanation, including what has not yet been proven.

What Is PLdB?

Sound engineers use PLdB, short for perceived level in decibels, to measure how loud a short, sharp sound seems to a human listener. It is weighted differently from the ordinary decibel figures on a phone app, because people judge a sharp boom differently from a steady hum. NASA’s design goal for the X-59 is about 75 PLdB on the ground, which it has compared with the sound of a car door closing in the neighbourhood.

What Has Been Shown and What Has Not

This is where careful reading matters. A few headlines have implied the NASA X-59 Supersonic Aircraft has already proved it is “boomless”. That goes further than the evidence.

• Confirmed: the aircraft has flown supersonic, reached its Mach 1.4 and 55,000-foot design condition, and gone beyond it in testing.
• Not yet confirmed publicly: final, validated measurements of its sound on the ground. NASA describes acoustic validation as the next phase, in which microphones and instruments on the ground and in the air measure the sound the aircraft really makes.
• Further ahead: flights over selected communities, where residents will be asked how they perceive the sound.

Early supersonic flights were also accompanied by a NASA F-15 chase aircraft. A chase plane flying near the X-59 makes its own conventional boom, which can complicate acoustic measurement, so the cleanest data needs specially planned flights.

How Quiet Is Quiet Enough?

There is not yet a globally agreed number. In the United States, the Federal Aviation Administration has proposed a noise-based limit expressed in pounds per square foot of overpressure (a different measure from PLdB). Regulators and researchers are working out what level communities will accept. The NASA X-59 Supersonic Aircraft is intended to supply human-response data so that the final number is based on evidence rather than guesses.

The NASA Quesst Mission Explained

Quesst, short for Quiet SuperSonic Technology, is the NASA mission that wraps the X-59 in a research plan. The aircraft is the tool. The mission is the experiment.

The Three Phases

Phase	What happens	Status in November 2026
1. Build and flight-test the aircraft	Ground tests, first flight, supersonic flight, flight-envelope expansion	Well underway: 41 flights in the first year, Mach 1.4 and Mach 1.53 reached
2. Acoustic validation	Measure the real noise of the X-59 using ground and airborne instruments	NASA says this is the next major focus
3. Community response	Fly over selected U.S. communities and collect public feedback	Still ahead; NASA plans to share results with regulators

NASA has said that the biggest benchmark for the aircraft, how it sounds at supersonic cruise speeds, will get more attention in the coming months. After that, the data goes to regulators in the United States and internationally.

Why Community Surveys Matter

A microphone can tell you a sound is 75 PLdB. It cannot tell you whether a family will find that sound acceptable twice a day. That is why NASA plans to ask people. Regulators need both the physics and the human reaction before they can set a lasting standard.

NASA X-59 Timeline: From Contract to First Year of Flight

Date	Milestone
2016	NASA awards Lockheed Martin a preliminary design contract
2 April 2018	NASA awards a roughly $247.5 million contract to design, build and deliver the aircraft
2022	The F414-GE-100 engine is installed at Skunk Works
12 January 2024	Lockheed Martin unveils the finished X-59
28 October 2025	First flight from Palmdale
March 2026	Flight testing resumes after a scheduled maintenance period
5 June 2026	First supersonic flight, about Mach 1.1
12 June 2026	First flight at Mach 1.4 and about 55,000 feet
21 August 2026	25th test flight
Week of 21 September 2026	Record six flights in a week; Mach 1.53 reached; 38 total flights
28 October 2026	One year since first flight; more than 40 additional flights completed; first cross-country trip begins, heading to Kennedy Space Center in Florida

The programme ran later than originally planned. Early schedules aimed for first flight around 2021, so the 2025 first flight reflects the complexity of building a one-of-a-kind aircraft with an unusual cockpit and shape.

The People Flying It

NASA test pilots including Nils Larson and Jim “Clue” Less have flown the programme, and pilot Mike Lippert made his first X-59 flight in October 2026, reaching Mach 1.4 and 55,000 feet. NASA has described typical flights as “exciting but uneventful”, which is exactly what a test pilot wants from an experimental aircraft.

NASA X-59 vs Concorde

Comparing the two aircraft is natural, because both are linked to supersonic travel, but they were built for opposite reasons. Concorde was a passenger airliner built to be fast. The X-59 is a research aircraft built to be quiet.

Feature	NASA X-59	Concorde
Purpose	Quiet supersonic research	Commercial passenger transport
First flight	2025	1969
Cruise speed	Mach 1.4	About Mach 2.04
Cruise altitude	About 55,000 ft	Up to about 60,000 ft
Length	About 99.7 ft (30.4 m)	About 203.8 ft (62 m)
Engines	One GE F414-GE-100	Four Olympus 593
People on board	One pilot	About 100 passengers plus crew
Sonic boom	Designed for a quieter thump	Loud, sharp boom
Status	In flight testing	Retired in 2003

Which Is Faster?

Concorde, by a wide margin. Even the X-59’s Mach 1.53 test speed is below Concorde’s normal cruise speed. That does not make the X-59 a failure. It was not designed to be faster. Lower supersonic speeds are easier on fuel and, importantly, help keep the shock waves manageable.

NASA X-59 Supersonic Aircraft Fits With Other Supersonic Projects

The X-59 is not the only effort to bring supersonic flight back, but it plays a different role from commercial developers.

Project	Type	Role	Status (November 2026)
NASA X-59	Government research aircraft	Measure quiet supersonic sound and public response	In flight testing
Boom XB-1	Private demonstrator	Prove supersonic technology; broke the sound barrier in January 2025	Test aircraft
Boom Overture	Planned airliner, about 60 to 80 passengers	Commercial supersonic service; designed for about Mach 1.7	In development; orders and pre-orders from airlines including United, American and Japan Airlines
Concorde	Retired airliner	Historical benchmark	Retired

The distinction matters. The X-59 supplies public data and sound measurements that any manufacturer can learn from. Companies such as Boom are the ones who would actually build and sell passenger aircraft. Public-sector research and private-sector development feed each other, but they are separate efforts, and the X-59 does not guarantee that any commercial plane will arrive.

Why Regulation Matters: The 1973 Ban and the New FAA Proposal

Aircraft technology is only half the story. The other half is the law.

The Old Rule

In 1973, the Federal Aviation Administration barred civil supersonic flight over land in the United States, mostly because of sonic boom noise. The rule is based on speed (“do not exceed Mach 1 over land”) rather than on how loud an aircraft actually is.

The New Proposal

On 30 June 2026, the FAA published a notice of proposed rulemaking called “Enabling Supersonic Overland Flight”. It would replace the speed-based ban with a performance-based noise standard. As proposed, aircraft would be judged on the sonic boom overpressure that reaches the ground, with a limit of 0.11 pounds per square foot reported in coverage of the proposal. The proposal follows a June 2025 executive order on supersonic flight.

Two cautions are important here:

• It is a proposal, not a final rule. The FAA has indicated that more rulemaking steps are required before routine overland supersonic service could be certified.
• It applies to the United States. Other countries and international bodies such as ICAO set their own rules, and NASA has said it will share X-59 results with regulators internationally as well.

Where X-59 Fits

The NASA X-59 Supersonic Aircraft does not write the law. Its role is to provide high-quality sound measurements and public-response data so that any rules are grounded in evidence. In short, the FAA decides, NASA informs and manufacturers build.

Advantages and Limitations of NASA X-59

Advantages

• Real-world evidence: it produces measurements from an actual aircraft rather than only computer models.
• Quieter supersonic research: it directly tests low-boom design principles that future aircraft can use.
• Policy value: well-measured data helps regulators move from “ban by speed” to “limit by noise”.
• Engineering spin-offs: external vision systems, shaped airframes and flight-test methods can inform other aircraft projects.
• Transparency: NASA publishes regular flight-test updates, which makes the programme easy to follow.

Limitations

• It is a single aircraft: one airframe cannot represent every future design, weather condition or route.
• The sound is not fully validated yet: the most important result is still ahead.
• It carries no passengers: it does not test cabin, safety or airline operations.
• It does not solve cost or fuel use: supersonic aircraft burn more fuel per passenger than subsonic ones, and the X-59 is not designed to change that.
• Regulations are unfinished: even a successful result would not mean immediate routine supersonic service.

Common Mistakes and Red Flags in X-59 Coverage

X-59 articles are easy to get wrong because the physics is subtle. Watch for these.

1. “The X-59 is a passenger jet.” It is a one-seat research aircraft, and NASA says it will never carry passengers.
2. “The X-59 has no sonic boom.” It is designed to make a much quieter thump. Final acoustic validation is still ahead.
3. “Mach 1.4 equals one fixed number of mph.” The conversion changes with air temperature and altitude.
4. “Mach 1.53 means a new design speed.” It was a test result. The research cruise remains Mach 1.4.
5. “Supersonic flights over land are legal now.” The FAA has proposed a new rule. It is not final.
6. “The X-59 will bring back Concorde.” It is slower than Concorde and is not an airliner.
7. Unsourced numbers. Be cautious of precise claims about price, passenger service dates or noise levels that do not cite NASA, Lockheed Martin or a regulator.

What Happens Next

As of early November 2026, the NASA X-59 Supersonic Aircraft has completed a full year of flight testing and is on its first cross-country trip, from California toward Kennedy Space Center in Florida. NASA has said it will return to its main test mission afterwards.

Near-Term Milestones to Watch

• Acoustic validation flights: the first validated ground-level sound measurements of the X-59 at its mission condition.
• Community response flights: flights over selected U.S. communities with surveys of residents.
• Data delivery to regulators: NASA has said findings will go to U.S. and international aviation authorities.
• FAA rulemaking: progress on the proposed overland supersonic rule, including public comments and any final rule.
• Commercial developments: progress by companies building supersonic airliners, which depend on both technology and regulation.

NASA X-59 FAQs

What is NASA X-59 Supersonic Aircraft?

NASA X-59 is a single-seat experimental aircraft built by Lockheed Martin Skunk Works for NASA’s Quesst mission. It is designed to fly faster than sound while producing a quieter “thump” instead of a loud sonic boom, so that regulators and researchers can study the result.

What is the Speed of the NASA X-59 Supersonic Aircraft?

The X-59 is designed to cruise at Mach 1.4, about 924 mph (1,487 km/h), at roughly 55,000 feet. In September 2026 it reached Mach 1.53, about 1,010 mph (1,625 km/h), its highest reported speed so far.

How does NASA X-59 work?

It uses a very long nose, narrow wings, a top-mounted engine and a carefully shaped body to keep shock waves from merging into one loud boom. The shape spreads the pressure changes out so the sound on the ground is intended to be much softer.

Is the Quiet Supersonic Aircraft boom really quiet?

That is what the aircraft is designed to show, with a target of about 75 PLdB. Flight performance has been proven, but NASA says acoustic validation, which measures the real ground sound, and community response studies are still ahead.

Why does the X-59 have no front window?

A forward windshield would disrupt the airflow over the long nose. The pilot uses the eXternal Vision System, which combines cameras with a high-resolution cockpit display to show the view ahead.

Is NASA X-59 Supersonic Aircraft faster than Concorde?

No. Concorde cruised at about Mach 2.04. The X-59’s design cruise is Mach 1.4 and its highest reported test speed is Mach 1.53. The X-59 is built to be quiet, not to be the fastest.

Will NASA X-59 aircraft carry passengers?

No. NASA describes it as a research aircraft that will never carry passengers. It carries one test pilot and instruments for gathering data.

Will the X-59 bring back supersonic passenger flights?

Not by itself. Its data could help regulators set noise standards, and the FAA has proposed replacing the 1973 overland ban with a noise-based rule. But manufacturers still have to build, certify and sell new aircraft, and no passenger launch date based on the X-59 has been confirmed.

Final Verdict

The NASA X-59 is one of the most interesting aircraft flying today, and it is also one of the easiest to misunderstand. It is not Concorde’s successor, not a passenger jet and not yet a proven answer to the sonic boom. It is a carefully designed experiment that has now cleared the first big hurdle: it flies, it reaches its mission speed and altitude, and it has gone beyond them in testing.

The decisive evidence is still to come. Acoustic validation will show whether the design delivers the quiet thump it promises, and community response studies will show whether people find that sound acceptable. Those results, not the Mach number, will decide whether the X-59 changes aviation.

Our verdict: NASA X-59 is a credible, well-run research programme with strong flight-test progress and a clear scientific goal. The headline claim, quiet supersonic flight, is promising but not yet fully demonstrated. Follow NASA’s updates, treat date-specific passenger predictions with caution and watch the acoustic and community results.

TL;DR

• NASA X-59 Supersonic Aircraft is a one-seat research aircraft built by Lockheed Martin for NASA’s Quesst mission.
• It is designed for Mach 1.4 at about 55,000 feet and has reached Mach 1.53 and above 56,000 feet.
• Its shape aims to turn a sonic boom into a quiet thump of about 75 PLdB, but ground-level sound validation is still ahead.
• It will never carry passengers. Its data is meant to help regulators write noise-based rules.
• The FAA has proposed replacing the 1973 overland ban with a noise standard, but that is not final.

Sources and Further Reading

• NASA Quesst blog: NASA’s X-59 Completes Record Six Flights in One Week
• NASA Quesst blog: NASA’s X-59 Aircraft Builds Momentum Through 25th Flight
• U.S. Federal Register: Enabling Supersonic Overland Flight (proposed rule)

Editorial note: This article is based on public information available through 3 November 2026. Aircraft dimensions vary slightly between sources, and programme details can change quickly, so please check NASA’s Quesst pages for the latest figures before relying on any number for professional use.

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About the Author:

Rajendra Parmar is the Founder and Editor of AmezTrix, where he writes about AI, Latest technology, WordPress, web hosting, digital marketing, gadgets and software. His goal is to turn complex tech into practical tutorials, honest reviews and well-researched guides.