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#supersonic — Public Fediverse posts

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  1. Making Quieter Shock Waves

    NASA’s X-59 aircraft is intended to demonstrate supersonic flight without the boom. Although it’s broken into supersonic speeds, we haven’t yet heard its “sonic thump” because, so far, it’s been accompanied by conventional supersonic aircraft, which are louder.

    The idea behind the long, skinny X-59 is to create weaker, widely-spaced shocks along the aircraft body. Weaker shocks are easier for atmospheric effects to damp out before they reach the ground, and spacing them out makes it harder for them to “pile up” at the nose and tail to create the strong double shocks that merge into a sonic boom.

    Schlieren image of a model X-59 tested at supersonic conditions in a wind tunnel. The model is mounted upside-down. The three dark diagonal lines are shock waves originating from the wind tunnel and can be ignored. The fainter lines coming off parts of the aircraft model are the plane’s shock waves.

    NASA is preparing to test the X-59’s in-flight shocks soon, including with in-air schlieren photography like they’ve done in the past for other aircraft. But we’ve already have a glimpse of what to expect, thanks to wind tunnel testing, shown above. Ignore the three dark diagonal lines in the middle of the image (those are from the wind tunnel, not the model aircraft), and focus instead on the thin bright lines coming off the plane. Those are some impressively subtle shock waves!

    Hear more from the aircraft’s designer and test pilots in this Ars Technica article. (Image credit: NASA; see also: Ars Technica, M. Ahaus et al.)

    #fluidDynamics #physics #schlierenPhotography #science #shockwave #supersonic #supersonicFlight #supersonicWindTunnel #windTunnelTesting
  2. Making Quieter Shock Waves

    NASA’s X-59 aircraft is intended to demonstrate supersonic flight without the boom. Although it’s broken into supersonic speeds, we haven’t yet heard its “sonic thump” because, so far, it’s been accompanied by conventional supersonic aircraft, which are louder.

    The idea behind the long, skinny X-59 is to create weaker, widely-spaced shocks along the aircraft body. Weaker shocks are easier for atmospheric effects to damp out before they reach the ground, and spacing them out makes it harder for them to “pile up” at the nose and tail to create the strong double shocks that merge into a sonic boom.

    Schlieren image of a model X-59 tested at supersonic conditions in a wind tunnel. The model is mounted upside-down. The three dark diagonal lines are shock waves originating from the wind tunnel and can be ignored. The fainter lines coming off parts of the aircraft model are the plane’s shock waves.

    NASA is preparing to test the X-59’s in-flight shocks soon, including with in-air schlieren photography like they’ve done in the past for other aircraft. But we’ve already have a glimpse of what to expect, thanks to wind tunnel testing, shown above. Ignore the three dark diagonal lines in the middle of the image (those are from the wind tunnel, not the model aircraft), and focus instead on the thin bright lines coming off the plane. Those are some impressively subtle shock waves!

    Hear more from the aircraft’s designer and test pilots in this Ars Technica article. (Image credit: NASA; see also: Ars Technica, M. Ahaus et al.)

    #fluidDynamics #physics #schlierenPhotography #science #shockwave #supersonic #supersonicFlight #supersonicWindTunnel #windTunnelTesting
  3. Tracklisten per Subsonic importieren

    Ich kann jetzt beliebige Playlisten mit meiner Musiksammlung in der Nextcloud abgleichen und daraus richtige Playlisten per Subsonic erstellen lassen. Ganz nebenbei war das eine Zeitreise in die Geschichte der Kieler Club-Kultur - aber dazu später mehr. Content Warning: Vibe Coding […]

    kaffeeringe.de/2026/07/17/next

  4. Tracklisten per Subsonic importieren

    Ich kann jetzt beliebige Playlisten mit meiner Musiksammlung in der Nextcloud abgleichen und daraus richtige Playlisten per Subsonic erstellen lassen. Ganz nebenbei war das eine Zeitreise in die Geschichte der Kieler Club-Kultur - aber dazu später mehr. Content Warning: Vibe Coding […]

    kaffeeringe.de/2026/07/17/next

  5. Friday, July 17, 2026

    2 more Russian shadow fleet tankers hit by drones in Black Sea . . . . . On his way out, Fedorov moves to boost Ukraine's sky shield with EU loans . . . . . Thousands rally in Kyiv, other cities against Defense Minister Fedorov's dismissal, demand reappointment . . . . . Russian opposition politician Boris Nadezhdin banned from leaving country . . . . . and more

    activitypub.writeworks.uk/2026

  6. Friday, July 17, 2026

    2 more Russian shadow fleet tankers hit by drones in Black Sea . . . . . On his way out, Fedorov moves to boost Ukraine's sky shield with EU loans . . . . . Thousands rally in Kyiv, other cities against Defense Minister Fedorov's dismissal, demand reappointment . . . . . Russian opposition politician Boris Nadezhdin banned from leaving country . . . . . and more

    activitypub.writeworks.uk/2026

  7. NASA Testing Supersonic Rotors for Mars

    NASA’s Ingenuity helicopter was the first aircraft humanity has flown on another planet, and engineers are looking to make the next generation of Martian helicopters bigger and more capable. That’s challenging in Mars‘ thin atmosphere, which is only 1% as dense as Earth’s. To get adequate lift, the rotors need to spin faster there.

    During Ingenuity’s mission, the team intentionally designed the craft to keep the rotor tips below supersonic speeds. But for the next mission–SkyFall–they’re looking to push the rotorcraft further. In recent tests in a Mars simulator chamber, they successfully spun the new rotors to tip speeds as high as Mach 1.08, significantly increasing the loads SkyFall could carry. (Image and video credit: NASA/JPL-Caltech; via Ars Technica)

    https://www.youtube.com/watch?v=aBJNtvAyt9g

    #fluidDynamics #helicopter #Mars #physics #rotorcraft #science #supersonic
  8. NASA Testing Supersonic Rotors for Mars

    NASA’s Ingenuity helicopter was the first aircraft humanity has flown on another planet, and engineers are looking to make the next generation of Martian helicopters bigger and more capable. That’s challenging in Mars‘ thin atmosphere, which is only 1% as dense as Earth’s. To get adequate lift, the rotors need to spin faster there.

    During Ingenuity’s mission, the team intentionally designed the craft to keep the rotor tips below supersonic speeds. But for the next mission–SkyFall–they’re looking to push the rotorcraft further. In recent tests in a Mars simulator chamber, they successfully spun the new rotors to tip speeds as high as Mach 1.08, significantly increasing the loads SkyFall could carry. (Image and video credit: NASA/JPL-Caltech; via Ars Technica)

    https://www.youtube.com/watch?v=aBJNtvAyt9g

    #fluidDynamics #helicopter #Mars #physics #rotorcraft #science #supersonic
  9. Going supersonic! NASA's X-59 jet breaks sound barrier for the 1st time
    atlas.whatip.xyz/post.php?slug
    <p>NASA&#039;s X-59 jet broke the sound barrier for the first time on Friday (June 5)
    #supersonic #barrier #breaks #sound

  10. NASA’s X-59 Aircraft Flies Supersonic for First Time
    atlas.whatip.xyz/post.php?slug
    <p>NASA’s experimental X-59 aircraft marked a major milestone Friday, June 5, when it flew
    #experimental #supersonic #milestone #aircraft

  11. Seeking Quieter Supersonic Flight

    Supersonic flight over the U.S. has been banned by all non-military aircraft for more than fifty years. The ban gained momentum in the 1960s after test programs over St. Louis and Oklahoma provoked public outcry. But NASA’s X-59 aircraft is working to lift the ban by softening the sonic booms that encouraged the ban in the first place. Although it hasn’t been tested at supersonic speeds yet, pilots are putting the sharp and skinny X-59 through its paces, slowly widening the flight envelope.

    https://www.youtube.com/watch?v=gR4Xuslczoo

    In the video above, NASA shares footage of some of the recent test flights, including various maneuvers like phugoids, banking rolls, flutter, and landing gear tests. Pay close attention to the pilot’s view and the radio chatter, and you’ll hear that they’re hovering around Mach 0.98 in some cases–just underneath the point of generating a shock wave around the aircraft. It will be neat to see what happens when they finally do go supersonic. Will it be as quiet as promised? (Video credit: NASA; image credit: NASA/L. Losey; see also NASA; via Gizmodo)

    #aircraft #flightTest #fluidDynamics #physics #science #shockwave #sonicBoom #supersonic #supersonicFlight #X59
  12. Seeking Quieter Supersonic Flight

    Supersonic flight over the U.S. has been banned by all non-military aircraft for more than fifty years. The ban gained momentum in the 1960s after test programs over St. Louis and Oklahoma provoked public outcry. But NASA’s X-59 aircraft is working to lift the ban by softening the sonic booms that encouraged the ban in the first place. Although it hasn’t been tested at supersonic speeds yet, pilots are putting the sharp and skinny X-59 through its paces, slowly widening the flight envelope.

    https://www.youtube.com/watch?v=gR4Xuslczoo

    In the video above, NASA shares footage of some of the recent test flights, including various maneuvers like phugoids, banking rolls, flutter, and landing gear tests. Pay close attention to the pilot’s view and the radio chatter, and you’ll hear that they’re hovering around Mach 0.98 in some cases–just underneath the point of generating a shock wave around the aircraft. It will be neat to see what happens when they finally do go supersonic. Will it be as quiet as promised? (Video credit: NASA; image credit: NASA/L. Losey; see also NASA; via Gizmodo)

    #aircraft #flightTest #fluidDynamics #physics #science #shockwave #sonicBoom #supersonic #supersonicFlight #X59
  13. #Navidrome läuft und läuft 🤩

    Schlank, schnell und stabil und das Streaming meiner Musikbibliothek klappt ohne Drama oder Audio-Aussetzer - egal ob im Heimnetz mit #Supersonic bzw. #Feishin oder unterwegs im Mobilnetz mit #Symfonium.
    Seit dem letzten Jahr habe ich meine MP3 Sammlung endlich im Griff und jederzeit verfügbar 🔊

    #mp3 #streaming #selfhosting #opensource #musik #music #docker #audiostreaming #pangolin
    besser als #spotify

  14. #Navidrome läuft und läuft 🤩

    Schlank, schnell und stabil und das Streaming meiner Musikbibliothek klappt ohne Drama oder Audio-Aussetzer - egal ob im Heimnetz mit #Supersonic bzw. #Feishin oder unterwegs im Mobilnetz mit #Symfonium.
    Seit dem letzten Jahr habe ich meine MP3 Sammlung endlich im Griff und jederzeit verfügbar 🔊

    #mp3 #streaming #selfhosting #opensource #musik #music #docker #audiostreaming #pangolin
    besser als #spotify

  15. NASA’s X-59 Prepares for First Supersonic Flight  
    atlas.whatip.xyz/post.php?slug
    <p>NASA’s X-59 quiet supersonic research aircraft is preparing for some of its most significant flights yet
    #supersonic #preparing #prepares #research

  16. NASA’s X-59 Prepares for First Supersonic Flight  
    atlas.whatip.xyz/post.php?slug
    <p>NASA’s X-59 quiet supersonic research aircraft is preparing for some of its most significant flights yet
    #supersonic #preparing #prepares #research

  17. Going Low and Slow in Testing
    atlas.whatip.xyz/post.php?slug
    <p>NASA’s X-59 quiet supersonic research aircraft flies above NASA’s Armstrong Flight Research Center
    #supersonic #research #testing #flight

  18. Going Low and Slow in Testing
    atlas.whatip.xyz/post.php?slug
    <p>NASA’s X-59 quiet supersonic research aircraft flies above NASA’s Armstrong Flight Research Center
    #supersonic #research #testing #flight

  19. @jonty Oh, this is nice! I used it way, way back and recently thought it would be nice to have something similar again and went with #ListenBrainz ( listenbrainz.org/ ) which is really nice (once you find a player that actually works with it reliably, I went with #Supersonic ( github.com/dweymouth/supersoni ) connected to my local #Navidrome instance, can recommend).

  20. Supersonic Jet Interaction

    When supersonic jets get emitted into rarefied air, they behave differently than they do in regular atmospheric conditions. Here, researchers picture three different configurations these jets can take. In the top image, the jets are close enough together that they appear to merge into a narrow supersonic jet. In the middle image, the jets are not quite as close together. They merge but form what appears to be a subsonic wake. In the final image, the jets are far enough apart that they don’t merge, although they do appear to “lean in” toward one another. (Image credit: S. Lee et al.)

    #2025gofm #flowVisualization #fluidDynamics #instability #jets #physics #science #supersonic
  21. Supersonic Jet Interaction

    When supersonic jets get emitted into rarefied air, they behave differently than they do in regular atmospheric conditions. Here, researchers picture three different configurations these jets can take. In the top image, the jets are close enough together that they appear to merge into a narrow supersonic jet. In the middle image, the jets are not quite as close together. They merge but form what appears to be a subsonic wake. In the final image, the jets are far enough apart that they don’t merge, although they do appear to “lean in” toward one another. (Image credit: S. Lee et al.)

    #2025gofm #flowVisualization #fluidDynamics #instability #jets #physics #science #supersonic
  22. Speedpaint number 3, go! Went for a meme/redraw I've seen usually utilizing Doom Wing Shadow, but I thought Super Sonic would be a better fit.

    #sonicfanart #redraw #supersonic #sonadowfankid #video #spidersart

    unskeep.com/video/LUWr9fs817kn

  23. Wheels Up for X-59
    atlas.whatip.xyz/post.php?slug
    <p>NASA’s X-59 quiet supersonic research aircraft flies over the Mojave Desert in California in this
    #supersonic #aircraft #research #wheels

  24. Wheels Up for X-59
    atlas.whatip.xyz/post.php?slug
    <p>NASA’s X-59 quiet supersonic research aircraft flies over the Mojave Desert in California in this
    #supersonic #aircraft #research #wheels

  25. #QuizOfTheDay: What was the First manned #Supersonic (exceed the speed of sound) #Aircraft?

    A. Concorde
    B. Dassault MD.550 Mirage
    C. Lockheed F-104 Starfighter
    D. Bell X-1

    knowledgezone.co.in/resources/

  26. #US bombers land in #UK

    The 4 Rockwell #B-1, #supersonic variable-sweep wing heavy #bombers, arrived at #RAF Fairford, #Gloucestershire on Friday evening

    It comes after PM Keir #Starmer granted permission for “defensive” US action against #Iranian #missile sites from UK bases

    A #USAirForce #C-5 plane also pictured at RAF base, while armed US airmen were seen guarding perimeter fence of military base

    thenational.scot/news/25916694

    #StarmerLapDog #USThreats #USAggression #WarCrimes #StarmerOut

  27. On January 21st was the 50th anniversary of Concorde's first commercial flight. 📆 What's your favorite #Concorde livery? ✈️ Do you want to know more about the potential revival of #supersonic commercial #aviation? What may the next gen supersonic #airliners look like? 🤔 What are their implications in terms of noise compatibility and #airport engineering? 🛫 Read our report on The Future of #Airports: A Vision of 2040 & 2070: alumni.enac.fr/en/publications. 💺 #airtravel #engineering #transportation

  28. ✈️ On this day in 1976, the Concorde made its first commercial flight, connecting London and Paris in record time! 🌍 This iconic supersonic jet showcased the incredible potential of high-speed air travel and redefined the way we think about distance. Since the retirement of the Concorde, I hope for a revival of civilian supersonic flight technology. #Concorde #AviationHistory #supersonic

  29. NASA Chase Aircraft Ensures X-59’s Safety in Flight

    As NASA’s X-59 quiet supersonic research aircraft continues a series of flight tests over the California high desert in 2026, its pilot will be flying with a buddy closely looking out for his safety.

    nasa.gov/aeronautics/chase-air

    #X59 #supersonic #aircraft #science #news #NASA

  30. #OnThisDay Little Joe 1B, a Mercury spacecraft, lifts off with Miss Sam, a female rhesus monkey on board (1960).

    Commercial service of #Concorde, a Britis-French turbojet-powered #Supersonic passenger airliner, began (1976).

    Happy Birthday Jack Nicklaus (1940). Nicknamed The Golden Bear, he is considered by many as the greatest #Golfer of all time.

    knowledgezone.co.in/news

  31. Enhancing #Parachutes by Instrumenting the #Canopy (#EPIC) is a #NASA project led by the Armstrong Flight Research Center to improve the safety and reliability of #Supersonic parachutes used for planetary missions, particularly to #Mars.

    knowledgezone.co.in/kbits/6969