Had the EMALS from USS Ford been DC instead of AC have fixed most of Its operational issues?

Had the EMALS from USS Ford been DC instead of AC have fixed most of Its operational issues?

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  1. 3 weeks ago
    Anonymous

    I think not, because you're going to need a giga capacitor to feed the catapult, anyway.

  2. 3 weeks ago
    Anonymous

    What are you drivelling on about now Chang ?

  3. 3 weeks ago
    Anonymous

    Black person OP thinks he is Thomas Edison

    • 3 weeks ago
      Anonymous

      Edison was unironically right: https://en.wikipedia.org/wiki/High-voltage_direct_current

      • 3 weeks ago
        Anonymous

        Lol no, how the frick are you going to step the grid up and down for the last 100 years with DC?
        >b-but we can do it now
        Sure we can but I think society is better off having power for the last 100 years rather than waiting until now.

      • 3 weeks ago
        Anonymous

        Well he would have been if he also invented high voltage electronics.

      • 3 weeks ago
        Anonymous

        DC is the way.
        It is known.

        >scale
        https://en.wikipedia.org/wiki/Baltic_Cable

        Literally the only advantage for DC is reduced line losses over long distance, but massively complicates the grid since you need converters and rectifiers at every point that connects to DC.
        t. Anon who builds substations

        • 2 weeks ago
          Anonymous

          That's backwards. DC has higher resistance over long distances. High voltage AC has very low resistance over long distances. High frequency AC has a maximum cable length that's the frequency divided by the speed of light.

          • 2 weeks ago
            Anonymous

            Eddy currents and Skin Effect cause increased resistance in HV AC transmission lines. It can be mitigated by things like stranded wire or T2 wire bundles, but it's still a significant factor. AC Transmission systems also have to deal with reactance. The other advantage of DC Transmission is it can be a single or two conductor system rather than three conductors required for AC.

    • 3 weeks ago
      Anonymous

      It's a chink thread. The chink emals uses DC and it has been the talking point of these chinks

  4. 3 weeks ago
    Anonymous

    DC is the way.
    It is known.

    • 3 weeks ago
      Anonymous

      Sure. If you're a fricking moron.

      • 3 weeks ago
        Anonymous

        >Typed from a device that only works on DC

        • 3 weeks ago
          Anonymous

          some technologies scale very poorly
          - steel for example scales great but ultimately is unable to sustain its own weight if you go too far...

          • 3 weeks ago
            Anonymous

            This is also a huge factor in network infrastructure, radio, internet, or otherwise.

          • 3 weeks ago
            Anonymous

            >scale
            https://en.wikipedia.org/wiki/Baltic_Cable

          • 3 weeks ago
            Anonymous

            That is the most nonsensical comparison I've read in a while.
            Please never post again concerning matters of electricity. Or steel.

        • 3 weeks ago
          Anonymous

          >typed on power transmitted via high voltage lines enabled by transformer schemes only possible because of AC.

  5. 3 weeks ago
    Anonymous

    Should have just stuck to steam.
    They've got steam from the nuclear creator anyhow.

  6. 3 weeks ago
    Anonymous

    Please learn a little more about voltage and circuits and electromagnets.

    Your car might run fine on 12V DC, but thats just a starter and some pumps.

    • 3 weeks ago
      Anonymous

      And computers only run on DC

      • 3 weeks ago
        Anonymous

        What the frick does a catapult that needs a huge amount of electricity to operate have in common with my computer? It's a completely different use case moron.

  7. 3 weeks ago
    Anonymous

    No, that wouldn't have changed anything significant.
    If the Ford had been designed in 2024 it might have used a MVDC system instead of the AC power system they went with, but it honestly doesn't really make much operational difference. The issues the Ford had weren't really in the power system, they were with a whole bunch of brand new systems which were installed on a brand new ship without sufficient testing beforehand, necessitating many revisions and fixes to already installed systems. Very tight tolerances of systems stuck on a ship which physically flexes when at sea were an especially serious pain point, but one which has absolutely nothing to do with electricity. Thankfully those issues finally seem to be ironed out.
    Compared to an AC system a MVDC system theoretically lets you simplify some electrical systems a bit, maybe. That's about it.

    • 3 weeks ago
      Anonymous

      it's just pure graft and corruption.
      the more you cope the faster the decline

      • 3 weeks ago
        Anonymous

        >third worlders accept the shit world they live in, provided the first world also appears to be shit
        implessive

      • 3 weeks ago
        Anonymous

        ching chong sar

      • 3 weeks ago
        Anonymous

        https://i.imgur.com/T4Ykon1.png

        No, that wouldn't have changed anything significant.
        If the Ford had been designed in 2024 it might have used a MVDC system instead of the AC power system they went with, but it honestly doesn't really make much operational difference. The issues the Ford had weren't really in the power system, they were with a whole bunch of brand new systems which were installed on a brand new ship without sufficient testing beforehand, necessitating many revisions and fixes to already installed systems. Very tight tolerances of systems stuck on a ship which physically flexes when at sea were an especially serious pain point, but one which has absolutely nothing to do with electricity. Thankfully those issues finally seem to be ironed out.
        Compared to an AC system a MVDC system theoretically lets you simplify some electrical systems a bit, maybe. That's about it.

        https://i.imgur.com/y8u51y4.png

        Had the EMALS from USS Ford been DC instead of AC have fixed most of Its operational issues?

        The amount of power it consumes is still about the same not to mention it still uses many of the same parts for the catapult.
        By the way the main reason China went with DC is because the AC version has a few rare metals that China can't mine itself and can be blocked by western countries.

    • 2 weeks ago
      Anonymous

      >40 sorties a day
      GEEZUS

      • 2 weeks ago
        Anonymous

        Navy surge testing/training in the 90s and 00s showed nimitz being capable of 180-200 sorties per day, though it required all sorties having a less than 200nmi range and many less than 100nmi, which is unrealistic during actual operational/combat sorties.

        43/day is pretty tame by surge standards and I think the GRF-class is supposed to (by design) be able to hit 240 sorties in a 24 hour preriod.

  8. 2 weeks ago
    Anonymous

    Implessive?

  9. 2 weeks ago
    Anonymous

    Total ESL death

  10. 2 weeks ago
    Anonymous

    Why is steam better than electronic? I am confused. Can you launch more quicker?

    I am assuming the steam recovers faster than it actually takes to taxi

    • 2 weeks ago
      Anonymous

      Electricity you just charge capacitor banks, with steam you have to boil water and move the steam from the boilers to the catapults.

      Electricity is better, this thread is about whether AC or DC electricity is better.

      • 2 weeks ago
        Anonymous

        Okay so I guess the electrical is more damage proof? If a steam pipe ruptures might take a while to fix.

  11. 2 weeks ago
    Anonymous

    Rotational mechanical energy produces AC electricity, you need to rectify it to get DC, there are cases where it's beneficial, but I don't see any obvious benefits for EMALS. And since the US carriers produce electricity through steam turbines (heated via nuclear reactors) which output AC power, why bother rectifying to DC?

    • 2 weeks ago
      Anonymous

      You can use rotational energy to generate DC, it's just inefficient.

      • 2 weeks ago
        Anonymous

        You can't directly make DC, which is why inefficient, you have conversion loss. It's still generating AC and you directly convert to DC for output, but that conversion step still has to happen.

        • 2 weeks ago
          Anonymous

          A dynamo can directly generate DC, but there are so many disadvantages compared to three phase AC power, it's basically irrelevant.

          • 2 weeks ago
            Anonymous

            Dynamos don't function at low RPM, conversion loss.

            With AC generation any rotational energy can be converted into AC no matter the RPM.

  12. 2 weeks ago
    Anonymous

    give me 100 Tesla cars, $100,000 for expenses, and dozen each Jr College engineers and auto-techs, and I'd build a cat on the football field able to launch 100,000 aircraft to 200mph in 80yds, and do about 2 dozen like that as fast as you could hook them up.

    I've run the numbers, and priced the parts, just need some techies to gang up the cars to a shaft and computer control their output.

    Maybe I'll send this idea to Elon, he likes big dumb stunts and could sure use some good press at the moment.

    PS-when in port the crew could use the cars to cruise around town, and this would help local hookers ID customers. On board ship the cars could serve as "gaming chairs" for video gamers.

    • 2 weeks ago
      Anonymous

      >100,000 aircraft
      100,000lb aircraft

      IIRC max loaded F-18 is heaviest current at about 80,000lbs.

      I unironically think new-gen of unmanned drones could include aircraft P-H-A-T-T-E-R that current full load fighter jets, for reasons.

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