• Ekky@sopuli.xyz
    link
    fedilink
    English
    arrow-up
    2
    ·
    1 month ago

    Just detach the blades. You can always re-attach them when you’ve landed.

  • TheMightyCanuck@sh.itjust.works
    link
    fedilink
    English
    arrow-up
    1
    ·
    edit-2
    1 month ago

    So basing off another comment. Have the Ejection seat tied to the rotor and shaft (not in a way that the chair spins. Duh)

    Then (as long as rotor hasn’t disintegrated) you can eject the seat with the rotor, thus minimizing filet chances… Whilst also floating to the ground softly like those whirly paper helicopter things you played with as a kid

    Boom. Parachute free ejection seat

    • Voroxpete@sh.itjust.works
      link
      fedilink
      English
      arrow-up
      1
      ·
      1 month ago

      Nah, just do it like they did in WW1; synchronize the ejection to the rotor blades so you fly through the gap, clean as a whistle.

      (Please don’t ask about our experiments with the earlier WW1 method of “Fuck it, just shoot the propeller sometimes, it’ll be fine”. Turns out that doesn’t work so great when you replace bullets with people.)

        • Voroxpete@sh.itjust.works
          link
          fedilink
          English
          arrow-up
          1
          ·
          1 month ago

          Some planes did, but early on they mostly just freeballed it. Turns out propellers are really big and heavy, and they can take a few bullets without breaking. Armour actually makes it more likely that fragments of bullets will fly back at the pilot.

            • Voroxpete@sh.itjust.works
              link
              fedilink
              English
              arrow-up
              1
              ·
              1 month ago

              It’s very rare that a bullet strikes the blade anyway. Bursts were short because ammo was very limited (twenty round strips were common in early biplanes), and the percentage of the space in front of the nose that is propeller is absolutely tiny compare to the percentage that is not propeller. To us its all a blur but to a bullet those blades are basically standing still.

  • FartsWithAnAccent@fedia.io
    link
    fedilink
    arrow-up
    1
    ·
    1 month ago

    Why not blow the blades off first with a charge in the Jesus pin? Or have the seats eject siddeways or downward? Or like, open the door and jump out hoping you don’t hit he rotors?

    • sushibowl@feddit.nl
      link
      fedilink
      English
      arrow-up
      1
      ·
      1 month ago

      If you eject downward you may hit the ground before your chute has opened. Helicopters tend to stay pretty low.

    • some_designer_dude@lemmy.world
      link
      fedilink
      English
      arrow-up
      1
      ·
      1 month ago

      Can’t believe I had to scroll this far to find the real solution. Eject rotors, then eject pilots. I think fighter jets basically do the same: eject canopy, then seat.

    • tibi@lemmy.world
      link
      fedilink
      English
      arrow-up
      1
      ·
      1 month ago

      Because now you have blades shooting away from the helicopter at a high speed which could kill someone.

  • nullpotential@lemmy.dbzer0.com
    link
    fedilink
    English
    arrow-up
    1
    ·
    1 month ago

    Attach the ejector seat TO the helicopter blades so that they both eject and you get a cool propeller and can fly around and it can shoot lasers and stuff too.

  • unemployedclaquer@sopuli.xyz
    link
    fedilink
    English
    arrow-up
    1
    ·
    edit-2
    1 month ago

    Sus. I watched AirWolf, and Magnum P.I. AND I’ve studied Leonardo di Vinci. Helicopters are next-gen tech and they don’t crash.

  • Etterra@lemmy.world
    link
    fedilink
    English
    arrow-up
    1
    ·
    1 month ago

    Oh boy I love it when death is multiple choice!

    1. Fiery explosion
    2. Cuisinart of Doom
    3. Squeezing your brain into hips
    4. 9mm of lead therapy
    5. Other: __________
      • chiliedogg@lemmy.world
        link
        fedilink
        English
        arrow-up
        1
        ·
        1 month ago

        The Kamov does it.

        The individual rotor blades are separated from the center with an explosive charge and their centrifugal motion carries them laterally away from the vehicle as the seat rockets straight up.

        • skulblaka@sh.itjust.works
          link
          fedilink
          English
          arrow-up
          1
          ·
          1 month ago

          As a bonus, whoever was close enough to shoot you down is about to get at least one heavy steel javelin flung terrifyingly close to their direction at high speeds.

          I’m assuming here that impact with a long range SAM is probably something you’re not about to eject from.

          • chiliedogg@lemmy.world
            link
            fedilink
            English
            arrow-up
            1
            ·
            1 month ago

            In cases like that I’d imagine you’d try and eject prior to being hit, though I don’t know enough to know how much warning time there is.

        • tibi@lemmy.world
          link
          fedilink
          English
          arrow-up
          1
          ·
          1 month ago

          Now you have blades shooting away from the helicopter at a high speed which could kill someone.

        • TranscendentalEmpire@lemm.ee
          link
          fedilink
          English
          arrow-up
          1
          ·
          1 month ago

          Mainly just copium for the pilots. Helicopters aren’t like airplanes where you have glide time and altitude to decide what to do after something bad happens. If you watch fixed winged ejections there’s usually about 30 seconds to a min after something goes wrong before the pilot decides to bail. Helicopters go from everything being fine, to a debris field in seconds.

          • Estiar@sh.itjust.works
            link
            fedilink
            English
            arrow-up
            1
            ·
            1 month ago

            It’s more about altitude than the ability to glide. Helicopters can do what’s called Auto rotation, which means they actually can glide. If the blade seize up however, they can’t autorotate. Helicopters fly a lot lower than most airplanes though, so they can’t glide as far.

              • Estiar@sh.itjust.works
                link
                fedilink
                English
                arrow-up
                1
                ·
                edit-2
                1 month ago

                Wow. I’d be nuts to fly one of those things. 6000 VVI sounds like suicide

                With the collective firmly held down on the bottom stop, things happen very fast. The helicopter is descending in a hurry, as in 4,000 – 6,000 feet per minute. Do the math, if you are at 1,000 feet and the descent rate is 4,000 feet, you have one quarter or a minute – 15 seconds – to find a place to land.

      • notabot@lemm.ee
        link
        fedilink
        English
        arrow-up
        1
        ·
        1 month ago

        Several models of helicopters have ejectable blades, this article mentions a few, and has a diagram of the blade severing system.

        • Steak@lemmy.ca
          link
          fedilink
          English
          arrow-up
          1
          ·
          1 month ago

          Damn never would have expected that. Thanks for showing me something new!

    • Madison420@lemmy.world
      link
      fedilink
      English
      arrow-up
      0
      ·
      1 month ago

      When helicopters lose power they just fall. If the rotor head isn’t decapitated then when you get ejected sideways there’s s no zero chance you’ll be julienned on the way down.

      It’s why the most (only version currently in operation) common method of helicopter ejection severs the head or blades while it’s still rotating so it/they spin off and hopefully away and then the seat rockets away.

        • Madison420@lemmy.world
          link
          fedilink
          English
          arrow-up
          0
          ·
          edit-2
          1 month ago

          Autorotation relies on one main thing, air being forced past a freewheeling rotor… Air that is being forced past because you’re falling.

          https://youtu.be/NLjFQJiJsZc?feature=shared

          Notice the immediate loss of attitude? It’s because they’re falling, unlike planes which can generally glide after an engine failure.

          https://youtu.be/CEMlny_ExuU?

          Specifically we’re speaking about helicopter ejection which in most cases means total loss of power or control or both. The only known helicopter eje tion seat(to me at least) to operate currently in modern combat is the ka 50/52.

          https://youtu.be/W6y_id3xOX0?

          One like this one which happens to eject and notably falls like a stone.

          • SSJMarx@lemm.ee
            link
            fedilink
            English
            arrow-up
            0
            arrow-down
            1
            ·
            edit-2
            1 month ago

            The KA-50 and -52 destroy their rotors when the ejection seat fires, as shown in this simulation. That’s why the helicopter drops like a rock after the ejection seat fires - the blades can’t autorotate if they’re not attached.

            Assuming the blades are still attached, the helicopter will autorotate down even if it is completely unpowered. It might lose some altitude initially, but like you said once the air is moving over the blades fast enough for them to spin they will do what they were designed to do.

            One thing helicopters and planes have in common is that if they fail too close to the ground autorotation/gliding won’t help. Helis are generally more dangerous than planes for a lot of reasons, the biggest one being that they spend more time in the most dangerous phase of flight - landing.