DailyDirt: Impractically-Powered Planes

from the urls-we-dig-up dept

Some methods of flying are better than others. Passenger comfort isn't always the top priority for some aircraft, and that's especially true when engineers are trying out really novel designs and propulsion ideas. Here are just a few examples of some new planes that aren't quite ready for commercial flight, but that look really cool on the drawing board. By the way, StumbleUpon can recommend some good Techdirt articles, too.
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Filed Under: electic, flying, lenr, nuclear, planes, solar, superconducting, voltair


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  • identicon
    abc gum, 1 Nov 2011 @ 5:12pm

    "Passenger comfort isn't always the top priority"

    I hear ya.

    link to this | view in chronology ]

  • identicon
    Anonymous Coward, 1 Nov 2011 @ 7:03pm

    The problem with airplanes powered by nuclear(Nuclear Aircraft) is shielding this was what made them impractical in the 60's, the Russians flown one and it killed all the pilots according to some accounts.

    http://en.wikipedia.org/wiki/Nuclear_aircraft
    http://www.aviation-history.com/articles /nuke-american.htm

    It was a time when people were scared, both Americans and Russians were trying to outdo each other and the Russians had no value for life.

    link to this | view in chronology ]

    • icon
      xenomancer (profile), 2 Nov 2011 @ 12:40am

      Re:

      With the designs around today, shielding should no longer be a problem. Shielding was inadequate in the 60's because the reactors were oversized to compensate for low power consumption efficiency, and shielding is heavy. Nowadays, reactor designs the size of a large trashcan are viable. They may still be heavy, but a competent company would have a tough time arguing against losing a couple passengers in exchange for virtually no refueling time.

      To explain a bit further, even if the reactor can not sustain the maximum instantaneous power required during a typical flight (take-off being the big power hog), there are plenty of means to store excess energy during periods of low power consumption (taxiing, cruising, initial landing approach) as electrical/chemical/mechanical energy. In fact, operating the reactor with less variance in power demand by using such an external energy capacitor is often desirable as it introduces fewer overall deviations from nominal design conditions to the system.

      link to this | view in chronology ]

      • identicon
        Anonymous Coward, 2 Nov 2011 @ 4:01am

        Re: Re:

        What happens if one of those fall from the sky, would the shielding be strong enough to protect the core? Will it maintain integrity on prolonged exposure to heat like in a fire.
        Did they managed to make a truly closed system, last I heard it was not that simple, doable but not practical not even today.

        link to this | view in chronology ]

      • identicon
        abc gum, 2 Nov 2011 @ 4:19am

        Re: Re:

        "a competent company would have a tough time arguing against losing a couple passengers in exchange for virtually no refueling time."

        This is the measure of competency these days ... oh wait, this is sarcasm - right?

        link to this | view in chronology ]

        • identicon
          Anonymous Coward, 2 Nov 2011 @ 2:06pm

          Re: Re: Re:

          "a competent company would have a tough time arguing against having the engine be slightly heavier, to the point where the plane's carrying capacity is reduced by a couple passengers in exchange for virtually no refueling time."

          Better?

          link to this | view in chronology ]

      • icon
        Michael Ho (profile), 2 Nov 2011 @ 11:54am

        Re: Re:

        Considering that lots of folks are still worried about burying waste from nuclear power plants in deep underground facilities, I'm pretty sure a *flying* nuclear power plant would be a bit outside the acceptable risk tolerances for the general public...

        But maybe it's possible for military planes since there are plenty of nuclear-powered submarines.

        link to this | view in chronology ]

  • icon
    Drew (profile), 1 Nov 2011 @ 10:44pm

    Solar Airship/plane hybrid

    This post reminded of something I saw recently that intrigued me. Plus it's in the final stages of development.
    http://green.autoblog.com/2011/10/22/solar-ship-sails-the-skies-schlepps-supplies/

    link to this | view in chronology ]

    • icon
      Michael Ho (profile), 2 Nov 2011 @ 1:11am

      Re: Solar Airship/plane hybrid

      That's a pretty cool airship... but I'm not sure that advertising it as "fast" is the right way to go. It's a big solar-powered helium balloon -- it's not going to be too swift compared to jets.

      link to this | view in chronology ]

  • icon
    xenomancer (profile), 2 Nov 2011 @ 12:29am

    Ironic Musings

    Suddenly terrorism may not seem so bad compared to a low temperature superconductor quenching mid flight due to some brief turbulence. If the cooling system on one of those goes off, it'll take the whole wing with it. BLEVE's don't have to be hot to do some severe damage.

    link to this | view in chronology ]

  • icon
    Bergman (profile), 2 Nov 2011 @ 3:24am

    Nikola Tesla envisioned a model for electrical distribution that, had it been implemented, would have inevitably led to aircraft with electric motors to spin propellers, but no fuel or batteries on board the plane itself.

    I imagine sooner or later, the FAA would have required at least a small backup battery to allow the plane to safely land if the broadcast power tower failed, but it wouldn't take much of a battery to power a plane for 5 minutes or so.

    link to this | view in chronology ]

  • identicon
    Anonymous Coward, 2 Nov 2011 @ 4:06am

    About energy production I can see some cheap airlines having to rethink the strategy of having less loo's.

    http://www.physorg.com/news/2011-11-urine-cheaper-electricity.html

    link to this | view in chronology ]


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