Worst Yacht Design Ever?

Discussion in 'Boat Design' started by intrepid71, May 15, 2016.

  1. rwatson
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    rwatson Senior Member

  2. makobuilders
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    makobuilders Member

    I've always dreamed of having a large trawler with an enclosed crows nest like you see on the San Diego tuna boats.

    His design takes that a few steps further. But how do you keep from getting seasick up there. And how do you stabilize that fishtank so the fish don't get tossed overboard?
     
  3. nzboy
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    nzboy Senior Member

    A 492ft boat with a 125ft thingy on the back is not much different to a 55
    romsdale trawler with a pilot house 10ft off the water plus 7ft headroom (17ft ) similar to a nordhavn 55 23ft above the water and they are still floating around
     

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  4. nzboy
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    nzboy Senior Member

    Another Romsdale still floating upright

    3927116_20120518104610_3_XLARGE.jpg
     
  5. daiquiri
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    daiquiri Engineering and Design

    Stability is not the real problem here. The habitability of the 40m high stateroom on such narrow vessel is.

    1.5° roll or heel at the water level translates to 1m sway up there. And 1-1.5° is a very small roll angle, nearly impossible to achieve with modern stabilizing systems. A more likely value would be at least 2-3°, which means a swaying motion with an amplitude of 3-4 meters up there.

    IMO, the staterom will be usable only in absolutely flat and protected sea. Hard to achieve conditions, imo.
     
  6. SamSam
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    SamSam Senior Member

    Lead? How gauche and downright tacky.

    This is part of the actual ballast

    [​IMG]
     
  7. John Perry
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    John Perry Senior Member

    Yes, but it would I think be feasible to mount the base of the tower on a two axis gimble arrangement with accelerometers feeding back to actuators to make lateral accelerations of the stateroom negligible. Maybe even include a vertical acting actuator to compensate for ship heave and gimbles at the top of the tower to give control over five degrees of freedom. The stateroom would then be the most comfortable place on the ship in any weather - a cure for seasickness? If the the yacht designer Gabriele Teruzzi would like me to design the system I would be happy to discuss that.
     
  8. intrepid71
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    intrepid71 Junior Member

    I would be very surprised if those things existed for this design. It strikes me as a designer working up some 3D renderings with no engineering thought behind it. If, as people are saying, this designer works for a reputable yacht design firm, then maybe I am incorrect in that and they did some preliminary stability calculations. Looking up the designer's credentials, he has a four year degree in interior design and then a one year degree titled "Master in Yacht Design in Construction" and his self-named firm has been around for less than one year. His work experience appears to be interior design and 3D renderings. Do you really think preliminary hydrostatics and weight estimates have been performed?

    To his credit, he put out a concept design and it got picked up by newspapers across the globe. The reason it got picked up is because it is, as the NY Post described, "outrageous". Forgive me for having some doubts about the stability.
     
  9. daiquiri
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    daiquiri Engineering and Design

    But the rest of the ship would be much less safe, besides the mechanical complications of that solution.
    To get what I mean, try to go out in a slight sea state in a small rowing boat. Then stand up and try to compensate with your legs the boat movements, so that your upper body is more or less motionless. What you would see is a greatly increased rolling motion of the boat beneath you, and it might occasionally even get some water on board. I beg your pardon if you already knew these things, considering your experience. :)
    Cheers
     
  10. intrepid71
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    intrepid71 Junior Member

    Water doesn't weigh much but there is quite a lot of it in a swimming pool. A small pool, say 10' x 20' x 5' is 62,400 lbs of water. Putting large tanks of any liquid on the upper decks of a vessel is not standard practice as far as I am aware.
     
  11. intrepid71
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    intrepid71 Junior Member

    How many of them are located on the crows nest of the vessel?
     
  12. Rurudyne
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    Rurudyne Senior Member

    I still think the "worst design ever" was that gull winged, deep keeled mega yacht that was featured in a previous thread.
     
  13. Skyak
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    Skyak Senior Member

    I am sure the design functions as intended -and the intended function is nothing more than to make you look and talk about it online! This is nothing more than "click bait".

    Designers are always trying to do something new that has never been done- and the easiest way is to draw something that CAN'T be done, or shouldn't be done.
     
  14. serow
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    serow Junior Member

    That would be commercially idiotic. Drawing up something to attract a wealthy customer then having to announce that it's technically unfeasible is not a smart move, I should have thought.
     

  15. boatenthusiast
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    boatenthusiast Junior Member

    some of those massive cruise ships have water slides at the top i believe.
     
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