Aircraft

First private-built supersonic plane smashes sound barrier

First private-built supersonic plane smashes sound barrier
XB-1 in flight
XB-1 in flight
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XB-1 in flight
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XB-1 in flight
The flight took place in the same airspace where the sound barrier was first broken in 1947
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The flight took place in the same airspace where the sound barrier was first broken in 1947
Tristan Brandenburg at the controls of XB-1
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Tristan Brandenburg at the controls of XB-1
XB-1 on the ground
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XB-1 on the ground
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Boom Supersonic has gone, well, supersonic, its XB-1 prototype breaking the sound barrier today in the skies over the Mojave Air & Space Port in California. With Chief Test Pilot Tristan Brandenburg at the controls, it reached a speed of Mach 1.122.

The 12th flight by the company was conducted in a special air corridor over California that's reserved for supersonic tests – the same airspace, as it happens, where Chuck Yeager became the first man to break the sound barrier in level flight, in the X-1 aircraft in 1947.

Reaching an altitude of 35,290 ft (19,756 m), the Boom XB-1 became not only the first commercial, piloted supersonic flight since Concorde retired in 2003, it was also billed as the first privately funded supersonic aircraft and the first private supersonic aircraft made in the United States.

The purpose of today's flight was not simply to mark a new record, but as a way of testing a number of key technologies that will be used in Boom's Overture supersonic airliner, which is expected to fly in 2029 and will carry up to 80 passengers at speeds up to Mach 1.7 on over 600 global routes.

Boom Mach 1

These technologies include:

  • An augmented reality vision system that allows the pilot to see forward while taking off and landing, despite the long needle nose of the aircraft,
  • Digitally optimized aerodynamics that allow the aircraft to remain stable at both supersonic and subsonic speeds,
  • Carbon composite materials for construction of the aircraft, and
  • Bespoke supersonic air intakes for the plane's Symphony turbofan engine, which Boom expects will become a product line in its own right.

The Overture airliner won't be able to get around FAA regulations that prevent commercial supersonic flight over American soil – that sort of palaver will have to wait until it's over the open ocean, but Boom says its design will allow it to fly some 20% faster than regular airliners over land, at Mach 0.94, without causing a sonic boom.

"It has been a privilege and a highlight of my career to be a part of the team that achieved this milestone – every single member of this team was critical to our success,” said Tristan "Geppetto" Brandenburg, Chief Test Pilot for Boom Supersonic. "Our discipline and methodical approach to this flight test program created the safety culture that made a safe and successful first supersonic flight possible. With the lessons learned from XB-1, we can continue to build the future of supersonic travel."

Source: Boom Supersonic

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6 comments
6 comments
McDesign
Wonderful - incredible work. I was thinking, "first manned, privately-funded vehicle to break the sound barrier" - but realized that the Brit ThrustSSC LSR got that record in 1997.
kwalispecial
I'm torn. As someone into tech and aircraft, it seems very cool. On the other hand, saving 20% on travel time over the ocean - maybe 1hr on a NY-London flight, out of a flight that probably takes 10hrs when you consider the unavoidable airport time, plus add some road travel at each end... It seems like a barely significant improvement to a day of travel, but probably at a very significant increase in cost.
Troublesh00ter
Still no mention of the character of the sonic boom generated by the plane. A good portion of the whole point of this project was to produce a supersonic aircraft whose sonic boom was minimized by its design.
This inquiring mind would like to know!
christopher
I'm sceptical too; long-haul would be best served by super-efficient slower designs ( https://newatlas.com/aircraft/bullet-plane-otto-celera-500l/ ) with sleeping accommodation instead of seats. Leaving at night, after all the traffic is out of your way, and arriving at the start of the next day in time for your work/play day starting halves the overall transport time waste while eradicating an unnecessary whole day of hotel and accommodation at your destination.
It is literally twice as fast and twice as efficient (time and fuel) to go slower and smarter, than supersonic.
Gregg Eshelman
Isn't the ultimate goal to produce a supersonic aircraft that doesn't sonic booms that are loud and sometimes destructive at ground level, thus prompting amendment of the supersonic flight ban?
Nelson
kwalispecial, how much it will cost a flyer, and how much it is going to cost the environment considering to achieve supersonic speeds it is going have to burn much more fuel.