• GhostPain@lemmy.world
    link
    fedilink
    English
    arrow-up
    35
    ·
    3 days ago

    While I agree they look cool, they’re an engineering nightmare and absolutely require titanium to build and that shit is too expensive for very little benefit.

    The point of a variable wing was to increase the effective flight envelope and there’s no point now that the same thing can be done with modern avionics and materials.

    Sorry.

    • Threeme2189
      link
      fedilink
      English
      arrow-up
      13
      ·
      2 days ago

      Pros:
      The plane will be partially made of titanium

    • nukeM
      link
      fedilink
      English
      arrow-up
      50
      ·
      3 days ago

      Counterpoint: they look fucking dope

      • GhostPain@lemmy.world
        link
        fedilink
        English
        arrow-up
        12
        ·
        3 days ago

        Again, completely agree.

        But like the A10, sometimes tech just passes you by.

        And swing wings are like biplanes. Old obsolete tech.

        • herrvogel@lemmy.world
          link
          fedilink
          English
          arrow-up
          5
          arrow-down
          2
          ·
          2 days ago

          They’re not obsolete until someone designs better looking wings. Until then swing wings are the state of the art in coolness tech. The cutting edge.

      • GhostPain@lemmy.world
        link
        fedilink
        English
        arrow-up
        7
        ·
        3 days ago

        Except the US doesn’t have a cheap, easily available source of titanium.

        The stuff we used for the SR-71 and F-14 had to be gotten surreptitiously from the Russians.

        That’s why the Space Shuttle didn’t have the titanium heat shield it was designed with and had to rely on the newly invented, much more delicate, ceramic heat shields. Which, it can be argued, resulted in the all of the deaths of the Challenger crew.

        • Captain Aggravated
          link
          fedilink
          English
          arrow-up
          10
          ·
          3 days ago

          No, the ceramic heat shield killed the Columbia crew.

          The Challenger crew was killed when a leaky SRB blowtorched the big orange tank. The SRB leaked partially because of an imperfectly designed seal and partially by being flown outside of its design limitations regarding temperature.

          • GhostPain@lemmy.world
            link
            fedilink
            English
            arrow-up
            6
            ·
            3 days ago

            Mea culpa, you’re right. I was misremembering.

            So with the original titanium heat shield the Columbia crew wouldn’t have died such gruesome deaths. All because Congress was cheap.

            • Captain Aggravated
              link
              fedilink
              English
              arrow-up
              4
              arrow-down
              1
              ·
              2 days ago

              It is my belief as a pilot and aircraft mechanic that both accidents share a critical design flaw: The crew vehicle for some bizarre reason was carried next to its rockets instead of on top where it belongs. It meant that Challenger had no way to escape, no launch escape tower could take them away from an exploding lower stage, and it put Columbia in a place where debris shed by the lower stage could hit it. Nothing could fall off of an Apollo first stage and hit the capsule because it was a hundred feet ahead.

              • GhostPain@lemmy.world
                link
                fedilink
                English
                arrow-up
                2
                ·
                2 days ago

                Not a rocket scientist so I can’t say.

                But I’m betting a room full of them and NASA engineers thought through all of their options based on the criteria and current tech.

                • gamermanh@lemmy.dbzer0.com
                  link
                  fedilink
                  English
                  arrow-up
                  1
                  ·
                  2 days ago

                  Having been to NASA and seen their museum and the launch pads and shit and gotten to talk to people who work there:

                  You’d think they thought it through, but small details get missed all the time in Nassau history

              • InverseParallax@lemmy.world
                link
                fedilink
                English
                arrow-up
                2
                ·
                2 days ago

                The issue is that they wanted to really pump up the reusable launch vehicle part, so it couldn’t be this little thing on the top with 4 SRBs.

                They died for the marketing.

                • Captain Aggravated
                  link
                  fedilink
                  English
                  arrow-up
                  2
                  arrow-down
                  1
                  ·
                  2 days ago

                  When basically all of your “lift” is coming from thrust, sure it does. As if the space shuttle stack was a work of aerodynamic genius.

        • Threeme2189
          link
          fedilink
          English
          arrow-up
          3
          arrow-down
          1
          ·
          2 days ago

          Pros:
          Forces the US to upkeep international relations and trading

  • tal@lemmy.today
    link
    fedilink
    English
    arrow-up
    14
    ·
    edit-2
    3 days ago

    Might complicate reducing radar signature.

    Also, it seems like kind of a specialized tool. You want it to have a low stall speed but also high maximum speed. The F-14 was a naval interceptor – intended to take off from and land on carriers at low speed, buy also dash out quickly enough to intercept incoming strikes against that carrier.

    I don’t know if there are many situations that have that combination of characteristics.

    • masterspace@lemmy.ca
      link
      fedilink
      English
      arrow-up
      17
      ·
      3 days ago

      Also, it seems like kind of a specialized tool. You want it to have a low stall speed but also high maximum speed. The F-14 was a naval interceptor – intended to take off from and land on carriers at low speed, buy also dash out quickly enough to intercept incoming strikes against that carrier.

      Completely agree with you, they’re awesome and should be used everywhere.

    • slacktoid@lemmy.ml
      link
      fedilink
      English
      arrow-up
      1
      arrow-down
      1
      ·
      2 days ago

      But see now we can have the glorious f35 to do everything we need. Purpose built says what? /s