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Water rocket-manned flight! "video"

Discussion in 'The Lounge' started by dontoe, Oct 15, 2005.

  1. dontoe

    dontoe 3/4 ton status GMOTM Winner

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  2. surpip

    surpip 1 ton status

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    he diddent look to happy when they brought him in
     
  3. Grieby54

    Grieby54 1/2 ton status

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    bellyflop!
     
  4. surpip

    surpip 1 ton status

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    they tried to do this on myth busters last night and couldent get it to work, i wonder if this was a fake? :haha:
    still funny as hell :haha: :haha:
     
  5. chevyfumes

    chevyfumes Court jester

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    Watch for the muzzleflash!
    I made one out of a 2 liter for the kids about 10 years ago, it was cool as hell, I'll have to make another for the youngest...:D
     
  6. jekbrown

    jekbrown I am CK5 Premium Member GMOTM Winner Author

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    good music, lol!

    j
     
  7. MattK

    MattK 1/2 ton status

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    real or not, after shows like most extreme elimination challenge on spike tv, im just about convinced that asian people do not get hurt.
     
  8. Inu-Hanyou1776

    Inu-Hanyou1776 1/2 ton status

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    Saw them try that on MythBusters last night too with the dummy. Kari originally was going to strap herself in as well, but after the test runs with the dummy, a paramedic they had as an advisor told Kari she shouldn't do it, so she didn't. Proves that video HAD to be faked.
     
  9. surpip

    surpip 1 ton status

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    i dont think it proves it, i think that the dead weight of the dummy is a whole lott different than strapping a live person into it.
     
  10. XHitman396

    XHitman396 1/2 ton status

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    i call fake, i just done see the physics working out... mainly from the close view from the side towards the end...
     
  11. BigBen

    BigBen 1/2 ton status Premium Member

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    Best i can do here quickly on the physics:

    I have a 20 oz diet coke bottle and in the inner diameter of the "nozzle" is about 0.850 inches.

    That gives an area of .568 sq inches. (pi*.850^2)/4

    It looks to me like there are three rows of 5 bottles (best guess).

    That works out to 15 bottles so the total nozzle area is 8.52 sq inches.

    If they pumped those things to 20 psi, I believe they would have about 170 lbs of force. (20*8.52).

    If that guy went 150 and they got 25 or 30 psi in the bottles....... :whistle:


    By quick math I think it's in the realm of possibility.
     
  12. afroman006

    afroman006 1/2 ton status

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    No Asian weighs 150, therefor your calculations are flawed :doah:
     
  13. BigBen

    BigBen 1/2 ton status Premium Member

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    I was being conservative...... ;)

    Lower his weight and raise the PSI.... he just flies farther.

    The quick math was to prove it was POSSIBLE with assumptions.

    :D :D :D
     
  14. mcinfantry

    mcinfantry 1/2 ton status

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    ????
    that reminds me of the old question.

    which weighs more?
    a pound of bricks
    -or-
    a pound of feathers
     
  15. mcinfantry

    mcinfantry 1/2 ton status

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    i dont think it was real either. not saying he wouldnt have fallen off the pier, just he wouldnt have flown around randomly in the air. where is his directional stability? what kept the thrust only pushing him skyward?
     
  16. K5er4Life

    K5er4Life 1/2 ton status

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    Hey does anyone else think Kari is pretty damn hot. Definitely too hot for them nerds on that show. Although they do come up with some pretty awesome stuff sometimes.
     
  17. afroman006

    afroman006 1/2 ton status

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    Agreed.
     
  18. XHitman396

    XHitman396 1/2 ton status

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    Italessi's got it pretty close. even if those bottles could have enough thrust to lift the little fella, it is not balanced, actually it is extremely unbalanced. it would just send him in a front flip as he tumbled into the water, not blasting off far into the water...
     

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