largest sailing catamaran for offshore work

Discussion in 'Boat Design' started by nulik, Dec 12, 2014.

  1. nulik
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    nulik Junior Member

    Hi,
    I am analyzing a project of building the largest possible sailing catamaran that would be able to do ocean crossing. What would be the maximum size for safety and manageability?
    The boat would be used by a software company, to work offshore, so it needs to have the maximum number of cabins (with queen size bed, no private head) , relatively small saloon (for 8 to 10 people), and the least possible amount of shared heads and showers. No luxury stuff. The goal of the boat is to accomodate the maximum number of programmers on it. Obviously, it must be a custom catamaran, but I am looking for example plans of large sailing cats, so I could calculate approximately how many people could one boat fit, are there any plans available online I could check?

    Thanks in advance for any info or comments.
     
  2. WestVanHan
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    WestVanHan Not a Senior Member

  3. philSweet
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    philSweet Senior Member

    Why on earth would you want a catamaran? Barracks boats are usually goofy looking monohulls. A hotel perched on a barge kind of thing. You want better than average motion index. And transport efficiency is usually pretty low on the list. Can be as big as you want - there were about 16,000 GI's on the troop transport that brought my dad to the US.

    Here you go. Pretty big, not too many amenities.

    [​IMG]
     
  4. Richard Woods
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    Richard Woods Woods Designs

    Do you mean one like this?

    http://www.sy-hemisphere.com/

    Years ago I designed a 70ft sailing catamaran that was designed for scientists working in the Indian Ocean. IIRC it could take 22 scientists plus crew. It had a mini submarine, a floatplane and a 20ft x 25ft main conference centre.

    The boat was big enough to have two floors in the hulls, so it had upper and lower cabins. The hulls had 13ft freeboard keel to gunwale

    Richard Woods of Woods Designs

    www.sailingcatamarans.com
     
  5. philSweet
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    philSweet Senior Member

    By "maximum number of programmers" do you mean 1000, 10,000, what?

    Are they each going to expect 20kWh/day to run their kit?

    Can you explain where sails or catamaran enter into the picture if your hotel power needs are maybe 10 times what your propulsion needs are? You could probably run the props off of waste heat.
     
  6. nulik
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    nulik Junior Member

  7. nulik
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    nulik Junior Member

    not that much, about 20 people. but I can hardly find a boat with more than 6 cabins.

    I don't think there will be problems for powering a laptop, solar panels will be enough.
     
  8. nulik
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    nulik Junior Member

    Well this is too much, and even if it would be a small barrack boat I doubt it could do ocean crossing.
     
  9. keysdisease
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    keysdisease Senior Member

  10. FAST FRED
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    FAST FRED Senior Member

    I doubt it could do ocean crossing.


    Check with the potential employees , I think most would prefer to FLY across an ocean than spend weeks at sea.
     
  11. philSweet
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    philSweet Senior Member

    You need to find out about the power needed as soon as possible, and the endurance needed. It will most likely drive the entire design. PC's can draw 800W these days. It depends on whether they are just typing script or are doing graphics, game design, animation, etc. You may need a lot of equipment space for HVAC as well. You have to take the entire utility system with you. The power densities you require basically mean solar, wind, and sail power are useless. Solar is nice when the boat is unoccupied. It can maintain batteries and security systems, etc. 400W should do for that. It makes a difference whether you need 500 gallons of diesel tankage or 5000. And the latter is probably closer to the mark.

    Go look at one of the little coastal casino boats. They are very good at packing people into a boat. Look at the equipment spaces on these craft. The tankage, the electrical distribution systems, gensets, etc.
     
    Last edited: Dec 14, 2014
  12. WestVanHan
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    WestVanHan Not a Senior Member

    Fascinating.
    Do you have any drawing/pix/info on it,Richard?


    At any rate, a dozen computer geeks plus crew on a hot/humid boat bouncing about in the ocean-seems to me that with sea sickness,intrigues and squabbles very little coding will get done.

    If some sort of exoticism is wanted,seems cheaper and better to fly them all to an all inclusive resort in Mexico for a couple months.
     
  13. DennisRB
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    DennisRB Senior Member

    New headquarters for The Pirate Bay?
     
  14. RHP
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    RHP Senior Member

    WVH: spot on. It would appear someone isn't so much concerned about overheads as providing 'an experience'.
     

  15. nulik
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    nulik Junior Member

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