Submarine driven by kites

Discussion in 'Boat Design' started by schakel, Feb 28, 2014.

  1. Poida
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    Poida Senior Member

    The only thing I can add to that, sitting here still fagged from my time in the pool yesterday. Swimmers do not try and prolong their start underwater at all. They simply utilise the power of their kick off from the end of the pool as much as possible. It is possible to swim under water at lot further than they do but after the kick off they start losing momentum and return to the surface because you can swim faster.

    And the only reason why they start each lap under water is because the flip turn is faster but finishes under water.

    Poida
     
  2. Squidly-Diddly
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    Squidly-Diddly Senior Member

    I can't count how many times I've posted this WW2 German "hybrid" semi-sub in response to similar ideas.

    http://strangevehicles.greyfalcon.us/VS 5.htm

    I'm guessing the idea was to go fast in rough water, while still using water as 'armor' with only engine intake and exhaust exposed to direct fire.

    Probably be tricky not to accidentally ram the whole thing under the waves briefly, with so little reserve buoyancy and at decent speed.
     
  3. Mr Efficiency
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    Mr Efficiency Senior Member

    The rules were changed for competitive swimming re how far swimmers could continue underwater before breaking the surface, I doubt they'd have been doing it unless it was faster underwater.
     
  4. gonzo
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    gonzo Senior Member

    That is correct. Swimmers were swimming underwater to gain speed and it got limited to two kicks.
     
  5. parkland
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    parkland Senior Member


    I think it's invisible just because it's all water, theres still currents caused by the hull.
     
  6. Mr Efficiency
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    Mr Efficiency Senior Member

    How about a kite-powered concrete sub, for those who like making life more difficult than it has to be ?
     
  7. Mr Efficiency
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    Mr Efficiency Senior Member

    Not quite, there are circumstances where submersible vessels can create less drag under water, and it is because of wave-making resistance, despite the fact displacement submerged is greater, of course.
     
  8. schakel
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    schakel environmental project Msc

    I can give a reaction to everyone of you but... It's sunday!
    I see you after the weekend.
    A manned topedo is a minisubmarine I had in mind. The purpose of the project is to break world speed records.
     
  9. Poida
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    Poida Senior Member

    Restricting the number of Dolphin Kicks a swimmer does under water, for example in a freestyle event is because it is a freestyle event not a Dolphin Kick event.

    In a freestyle event a swimmer would certainly like to do more Dolphin Kicks only to utilise the power from kicking off the wall.

    Kites on submarines may not have to be in the air, they could utilise the ocean currents to drag them around.

    Poida
     
  10. Fanie
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    Fanie Fanie

    LOL... you guys... !

    Isn't this called drifting ?

    In Starcraft you get this mothership with lots of little planes flying into the enemy destroying them as they hit them. Difficult to shoot down too. If you have a fleet of them you could clean the playing field.

    Before you ask, I have no idea either :D
     
  11. parkland
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    parkland Senior Member


    I know of something that would be 10x awesome-er....

    a kite powered concrete modular train submarine!!!!!!!!!!! :D
     
  12. rwatson
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    rwatson Senior Member

    And we can get some experts to put it on hydrofoils as well !!!!! :p
     
  13. parkland
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    parkland Senior Member

    Sounds like it will be stealthy :cool:
     
  14. schakel
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    schakel environmental project Msc

    Point is: It's a bit difficult to find sponsors for this project. Since the one who beats a speed record like this doesn't see a thing. A cam recorder in the kite makes it somewhat visual more interesting but still. It's like lying in a coffin.

    Unmanned transportation by a rail underwater in this way might look more interesting. But I guess it will be a crazy invention.
     

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  15. Poida
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    Poida Senior Member

    Under water train, too much movement on the ocean floor, and too deep.

    Under water cable cars 'tho, could be the go.

    Maybe we need a futuristic section.

    Poida
     
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