Stories
Slash Boxes
Comments

SoylentNews is people

posted by hubie on Friday February 23, @03:59PM   Printer-friendly
from the leaf-on-the-wind dept.

https://www.npr.org/2024/02/19/1232325097/near-record-winds-over-the-northeast-push-passenger-planes-to-speeds-over-800-mp

Strong high-altitude winds over the Mid-Atlantic sped up sky traffic on Saturday night, getting passengers on at least two commercial planes to their destinations early, after both aircraft hit supersonic speeds topping 800 mph.
[...]
"Although its ground speed — a measure that combines the plane's actual speed and the additional push from the wind — was greater than the speed of sound, it was still moving through the surrounding air at its ordinary cruise speed. It just so happened that the surrounding air was moving unusually fast," the Post reported.

Another 787, a United Airlines flight from Newark, N.J., to Lisbon, Portugal, that took off at 8:35 p.m. on Saturday, reached a peak ground speed of 838 mph, shaving 20 minutes off the scheduled flight time.

Certainly not the first time as Wired's UK site reported on a similar event in 2019.
Wired UK article: The wild physics of the passenger plane that just hit 800 mph - 20190221


Original Submission

This discussion was created by hubie (1068) for logged-in users only, but now has been archived. No new comments can be posted.
Display Options Threshold/Breakthrough Mark All as Read Mark All as Unread
The Fine Print: The following comments are owned by whoever posted them. We are not responsible for them in any way.
(1)
  • (Score: 3, Insightful) by OrugTor on Friday February 23, @04:33PM (4 children)

    by OrugTor (5147) on Friday February 23, @04:33PM (#1345875)

    This is old news to students of high school applied mathematics. Wild physics? No, basic Newtonian physics. And don't even mention the speed of sound. It's irrelevant.

    • (Score: 3, Touché) by Nuke on Friday February 23, @05:11PM

      by Nuke (3162) on Friday February 23, @05:11PM (#1345891)

      No, basic Newtonian physics.

      It's not even that is it? I'm sure that cavemen must have noticed that their hollowed-out log boats took them down river faster than they could make it back up again.

    • (Score: 4, Funny) by Freeman on Friday February 23, @05:27PM (2 children)

      by Freeman (732) on Friday February 23, @05:27PM (#1345895) Journal

      Relevant "Ten Thousand" [xkcd.com] XKCD comic.

      --
      Joshua 1:9 "Be strong and of a good courage; be not afraid, neither be thou dismayed: for the Lord thy God is with thee"
      • (Score: 3, Funny) by RS3 on Friday February 23, @05:32PM (1 child)

        by RS3 (6367) on Friday February 23, @05:32PM (#1345898)

        So you're saying planes should carry some Diet Coke and Mentos to power some booster rockets?

        • (Score: 2, Touché) by khallow on Friday February 23, @05:39PM

          by khallow (3766) Subscriber Badge on Friday February 23, @05:39PM (#1345900) Journal
          Of course! Does he need to type slower and louder so you get it?

          PS, I don't want to run into the ten thousand people discovering mentors powered jets for the first time. That's way too many people.
  • (Score: 1) by khallow on Friday February 23, @05:01PM (10 children)

    by khallow (3766) Subscriber Badge on Friday February 23, @05:01PM (#1345889) Journal
    And I'm pretty sure someone has taken passenger jet to supersonic speeds before. Time for scary stories?
    • (Score: 5, Funny) by DannyB on Friday February 23, @05:29PM (7 children)

      by DannyB (5839) Subscriber Badge on Friday February 23, @05:29PM (#1345896) Journal

      As I understand it, this plane was only at a "supersonic speed" relative to the ground. But not supersonic within the moving air it was flying in. The plane was not braking the sound barrier or causing a masonic boom.

      --
      To transfer files: right-click on file, pick Copy. Unplug mouse, plug mouse into other computer. Right-click, paste.
      • (Score: 1) by khallow on Friday February 23, @05:43PM (2 children)

        by khallow (3766) Subscriber Badge on Friday February 23, @05:43PM (#1345902) Journal
        As I understand it, actual breaking of the barrier is routinely followed by actual breaking of the aircraft as it craters into the ground - powered dives being a common cause of the phenomenon.
        • (Score: 4, Touché) by Tork on Saturday February 24, @03:37AM (1 child)

          by Tork (3914) Subscriber Badge on Saturday February 24, @03:37AM (#1346001)
          Heh. I got in trouble in school once when our teacher asked us what the cause of most plane crashes is. Apparently "gravity" was an offensive answer.
          --
          🏳️‍🌈 Proud Ally 🏳️‍🌈
          • (Score: 2) by Freeman on Monday February 26, @02:17PM

            by Freeman (732) on Monday February 26, @02:17PM (#1346304) Journal

            That was brilliant and your teacher should have given it to you. Instead of whatever negative came from your statement.

            --
            Joshua 1:9 "Be strong and of a good courage; be not afraid, neither be thou dismayed: for the Lord thy God is with thee"
      • (Score: 4, Funny) by pTamok on Friday February 23, @05:59PM (2 children)

        by pTamok (3042) on Friday February 23, @05:59PM (#1345909)

        The plane was not braking the sound barrier or causing a masonic boom.

        Yes, it's a good job the driver was standing on the breaks so as not to free a lot of masons by misteak. I'm sure someone would lodge a protest if that happened. An explosive increase in masons running around unfettered would be unsound, make no bones about it, and it's a good thing there's a well-founded barrier in place to prevent that.

        • (Score: 2) by Tork on Friday February 23, @09:29PM

          by Tork (3914) Subscriber Badge on Friday February 23, @09:29PM (#1345962)

          ...and it's a good thing there's a well-founded barrier in place to prevent that.

          Agreed. We don't need to make Steve Guttenburg a star again.

          --
          🏳️‍🌈 Proud Ally 🏳️‍🌈
        • (Score: 2) by DannyB on Monday February 26, @04:00PM

          by DannyB (5839) Subscriber Badge on Monday February 26, @04:00PM (#1346321) Journal

          An explosive increase in masons running around unfettered would be unsound

          I think the masons would only explode in a particle accelerator. Running around unfettered.

          --
          To transfer files: right-click on file, pick Copy. Unplug mouse, plug mouse into other computer. Right-click, paste.
      • (Score: 1) by lush7 on Saturday February 24, @01:42AM

        by lush7 (18543) on Saturday February 24, @01:42AM (#1345987)

        Masonic boom lol. That's great, lol.

    • (Score: 0) by Anonymous Coward on Friday February 23, @05:45PM

      by Anonymous Coward on Friday February 23, @05:45PM (#1345904)

      And I'm pretty sure someone has taken passenger jet to supersonic speeds before.

      You can confirm that by reading the whole summary.

    • (Score: 2, Informative) by pTamok on Friday February 23, @05:50PM

      by pTamok (3042) on Friday February 23, @05:50PM (#1345906)

      How Quick Thinking Saved the First Airliner to Break the Sound Barrier

      In August 1961 a crew of Douglas Aircraft test pilots proved the new DC-8’s worth by diving it through the speed of sound

      https://www.historynet.com/the-first-sst-the-first-airliner-to-break-the-sound-barrier/ [historynet.com]

  • (Score: 4, Informative) by DadaDoofy on Friday February 23, @06:41PM (2 children)

    by DadaDoofy (23827) on Friday February 23, @06:41PM (#1345919)

    "both aircraft hit supersonic speeds"

    No, they didn't. Ground speed is irrelevant when determining whether an aircraft is flying supersonically.

    • (Score: 2, Funny) by Hauke on Friday February 23, @09:13PM (1 child)

      by Hauke (5186) on Friday February 23, @09:13PM (#1345955)

      Exactly.
      Wake me up when they reach superluminal speeds.

      --
      TANSTAAFL
      • (Score: 2) by ls671 on Saturday February 24, @01:36AM

        by ls671 (891) Subscriber Badge on Saturday February 24, @01:36AM (#1345985) Homepage

        Maybe ride a solar flare?

        --
        Everything I write is lies, including this sentence.
  • (Score: 3, Interesting) by crafoo on Saturday February 24, @03:48AM

    by crafoo (6639) on Saturday February 24, @03:48AM (#1346008)

    I always like to repost this wiki article. https://en.wikipedia.org/wiki/Coffin_corner_%28aerodynamics%29 [wikipedia.org]

    it's more about commercial airlines flying high to reduce drag/increase fuel efficiency. it is interesting though. stall speed and max flight speed only being a few knots apart.

(1)