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#supersonic

1 post1 participant0 posts today
Public
Nicole Sharp

Imaging a New Era of Supersonic Travel

Supersonic commercial travel was briefly possible in the twentieth century when the Concorde flew. But the window-rattling sonic boom of that aircraft made governments restrict supersonic travel over land. Now a new generation of aviation companies are revisiting the concept of supersonic commercial travel with technologies that help dampen the irritating effects of a plane’s shock waves.

One such company, Boom Supersonic, partnered with NASA to capture the above schlieren image of their experimental XB-1 aircraft in flight. The diagonal lines spreading from the nose, wings, and tail of the aircraft mark shock waves. It’s those shock waves’ interactions with people and buildings on the ground that causes problems. But the XB-1 is testing out scalable methods for producing weaker shock waves that dissipate before reaching people down below, thus reducing the biggest source of complaints about supersonic flight over land. (Image credit: Boom Supersonic/NASA; via Quartz)

Schlieren image showing shock waves emanating from the XB-1 test aircraft.
The XB-1 test aircraft in flight.
#aircraft#flowVisualization#fluidDynamics
Public
Benjamin Carr, Ph.D. 👨🏻‍💻🧬

#Supersonic #planes are inching toward takeoff. That could be a problem.
Boom estimates that one of its full-sized Overture jets will burn two to three times as much fuel per passenger as a subsonic plane’s first-class cabin. Compared to standard economy-class travel, first-class cabins tend to have larger seats with more space between them. Because there are fewer seats, more fuel is required per passenger, and therefore more #emissions are produced for each person.
technologyreview.com/2025/02/0

MIT Technology Review · Supersonic planes are inching toward takeoff. That could be a problem.By Casey Crownhart
Public
Benjamin Carr, Ph.D. 👨🏻‍💻🧬

The Return Of #Supersonic Flights Might Actually Be Real
#BoomSupersonic's test #plane could pave the way for a new supersonic #airline
The private test plane is a one-third-scale presentation of the startup’s planned Overture airliner. #AmericanAirlines and #UnitedAirlines have already placed orders for the Overture, so a successful test flight next week would be a monumental step toward the return of supersonic commercial flights.
jalopnik.com/the-return-of-sup

Jalopnik · The Return Of Supersonic Flights Might Actually Be RealBoom Supersonic's test plane could pave the way for a new supersonic airliner
Replied in thread
Public
Chao-c'

@wonderofscience

‘Even the F-22, developed almost 50 years after the Concorde and the reigning undisputed air supremacy fighter can only supercruise at Mach 1.8 and its top speed – Mach 2.2 – is the same as for a Tornado. If Concorde was still flying, it is unlikely it would be able to photograph it at Mach 2.0. Even if the Soviets back at the time were willing to lend the Mig-25/Mig-31, it is not entirely clear if it would be able to sustain the level flight with Concorde at Mach 2.0 for long enough to have a picture taken.’

#supersonic
Public
Nicole Sharp

An Exoplanet’s Supersonic Jet Stream

WASP-127b is a hot Jupiter-type exoplanet located about 520 light-years from us. A new study of the planet’s atmosphere reveals a supersonic jet stream whipping around its equatorial region at 9 kilometers per second. For comparison, our Solar System’s fastest winds, on Neptune, are a comparatively paltry 0.5 kilometers per second. The team estimates the speed of sound — which depends on temperature and the atmosphere’s chemical make-up — on WASP-127b as about 3 kilometers per second, far below the measured wind speed. The planet’s poles, in contrast, are much colder and have far lower wind speeds.

Of course, these measurements can only give us a snapshot of what the exoplanet’s atmosphere is like; we don’t have altitude data, for example, to see how the wind speed varies with height. Nevertheless, it shows that exoplanets beyond our planetary system can have some unimaginably wild weather. (Video and image credit: ESO/L. Calçada; research credit: L. Nortmann et al.; via Gizmodo)

https://www.youtube.com/watch?v=lcY1vxbKjO0

An artist's conception of exoplanet WASP-127b and its fast-moving equatorial jet stream.
#astronomy#atmosphericScience#exoplanets
Public
Ian Kluft ✈️🎈🌋

"Boomless Cruise: How Boom Supersonic’s XB-1 breaks the sound barrier quietly" by AeroTime - #XB1 test flight had sensors monitoring on the ground which confirmed no sonic boom reached the ground during three times it exceeded Mach 1. Using subsonic speed longer for climb, they reached Mach 1+ above the altitude where booms refract back up before reaching the ground. A nice new trick for potential #supersonic air #travel over land. aerotime.aero/articles/boom-su #aviation #avgeek

Public
MIT Technology Review DE

Man könnte sagen, der Name ist Programm. Boom Supersonic heißt ein Startup aus Colorado, das die Luftfahrt revolutionieren will – und zwar mit einem lauten, aber nicht zu lauten Knall ;)

#Luftfahrt #Überschall #Flugzeug #Supersonic

t3n.de/news/boom-supersonic-sc

t3n Magazin · Boom Supersonic schafft Überschallflug: Neue Konzepte wollen die Nachteile der Concorde hinter sich lassen - t3n – digital pioneers | Das Magazin für digitales Business - t3ndeEine neue Generation von Überschall-Verkehrsflugzeugen soll ohne die Nachteile der Concorde auskommen. Das US-Startup Boom prescht mit erstem Testflugzeug voran.
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