[Article] – ZeroHedge – Boeing … 777 Fuselage "Split Dramatically" During Stress Test

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    • #231115
      ThouArtThat
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      • Total Posts: 2,924

      Boeing Shares Slide On Reports 777 Fuselage “Split Dramatically” During Stress Test

      With the FAA reportedly preparing to inspect every 737 MAX individually before it signs off on the planes’ return to the air – a decision that will likely delay recertification and add to Boeing’s losses – the latest bad news for the aerospace firm comes from its hometown (well, sort of, Boeing is officially based in Chicago but the bulk of its operations are located in Washington State) paper, the Seattle Times.

      The paper reported that a recent stress test for a new model of the Boeing 777 resulted in the fuselage (a fancy term for the body of the plane) ripping apart just below the FAA’s official threshold for certification.

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      When Boeing tested the original 777 model in 1995, it kept going until the aluminum wings snapped at 1.54 times limit load. On the 787, it chose to stop at 1.5 and then ease the composite wings back down again. Breaking a pair of composite wings could result in release of unhealthy fibers in the air, so it’s likely that with the 777X also having composite wings, that was the plan again this time.

      But as Boeing personnel along with six FAA observers watched from the windows of a control room, at 1.48 times limit load – 99% of ultimate load – the structure gave way. Under the center fuselage, just aft of the wing and the well where the landing gear wheels are stowed, the extreme compression load caused the plane’s aluminum skin to buckle and rupture, according to the person familiar with the details.

      Grief requires us to know the time we're in. The great enemy of grief is hope. Hope is the four-letter word for people who are unwilling to know things for what they are.

      Our time requires us to be hope-free. To burn through the false choice of being hopeful and hopeless. They are two sides of the same con job. Grief is required to proceed.

      - Stephen Jenkinson

      Sooner or later we all sit down to a banquet of consequences.

      - Robert Louis Stevenson

    • #231119
      tk2kewl
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      • Total Posts: 1,036

      There must be dozens of engineers shaking their heads saying “I told you so.”

      • #231122
        ThouArtThat
        Participant
        • Total Posts: 2,924

        @tk2kewl

        Hi tk2kewl,

        Yep – it is well known that the stress properties of carbon fiber (wings) and aluminum (fuselage) are wildly different such that any joint between the two (wings and fuselage) is going to be problematic at best and disastrous at worst.  Additionally it has been widely reported for the better part of a decade that Boeing engineers and machinists are very dissatisfied with the way the company is managed and run.  So your suspicions are probably spot on.  Also note that this failure has been kept secret since September when the test occurred.  I suspect that many passengers would have liked to know this information so they could have chosen another airplane type or alternative form of travel.

        TAT

        Grief requires us to know the time we're in. The great enemy of grief is hope. Hope is the four-letter word for people who are unwilling to know things for what they are.

        Our time requires us to be hope-free. To burn through the false choice of being hopeful and hopeless. They are two sides of the same con job. Grief is required to proceed.

        - Stephen Jenkinson

        Sooner or later we all sit down to a banquet of consequences.

        - Robert Louis Stevenson

    • #231124
      rampart
      Participant
      • Total Posts: 534

      @tk2kewl

      you’re probably right. the marketing dept seems to think we engineers exist to give them inferior products to sell.

      my contention is that they exist to provide money for us to develop superior products.

    • #231127
      tk2kewl
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      • Total Posts: 1,036

      @rampart @thouartthat i’m a software engineer working for a very large local govt. for at least 4 yrs i’ve been saying it can’t get any worse but it always finds a new low. austerity + command and control organizations are an absolute recipe for government failure. most all real IT engineers (the govt has a lot of fake ones) know that technology is not done in a top-down fashion – the world runs on the bottom-up technology created by free and open interaction. instead govt pours money into big tech SIs and pays gobs of money for garbage that doesn’t work and then hand it over to employees to fix with no budget left. It’s well past time for this top-down/bottom-up worm to turn.

      • #231134
        ThouArtThat
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        • Total Posts: 2,924

        @tk2kewl

        Hi tk2kewl,

        Yep – this just underscores the fallacy of operating a company for profit that builds safety critical products.

        Public safety and quarterly profits are a recipe for disaster.

        TAT

        Grief requires us to know the time we're in. The great enemy of grief is hope. Hope is the four-letter word for people who are unwilling to know things for what they are.

        Our time requires us to be hope-free. To burn through the false choice of being hopeful and hopeless. They are two sides of the same con job. Grief is required to proceed.

        - Stephen Jenkinson

        Sooner or later we all sit down to a banquet of consequences.

        - Robert Louis Stevenson

    • #231128
      Bearian
      Participant
      • Total Posts: 524

      Don’t forget. Jay Inslee, Washington’s Governor rushed to get Boeing a 9 billion dollar tax cut, to keep the New 777 plant in Washington.

    • #231140
      FedUp
      Participant
      • Total Posts: 425

      This is what happens when bean counters, whose only concern is the bottom line, are put in charge and replace experienced engineers who know how to avoid cow pies with inexperienced newbies who step right in them every time. Witness the 737 Max and now this. Neither would have happened had senior staff not been let go to cut costs.

    • #231157
      NV Wino
      Moderator
      • Total Posts: 4,958

      Okay, they’ve got to stop using The Hulk to test those things.

      “As we act, let us not become the evil that we deplore.” Barbara Lee
      “Politicians and pro athletes: The only people who still get paid when they lose.” William Rivers Pitt

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