scow bow trimaran

Discussion in 'Multihulls' started by dsigned, Apr 27, 2018.

  1. trip the light fandango
    Joined: Apr 2018
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    trip the light fandango Senior Member

    How about a convertible Tri?
    I like the idea of arching a pair of beachcat masts, with tracks facing each other and spanning to each amas about 8ft / 2metres apart, but this thread is about scow bows, my apologies.
     
    Last edited: May 21, 2018
  2. dsigned
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    dsigned O.R.C. Hunter

    Oooh....Forward double-bunk anyone?
     
  3. trip the light fandango
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    trip the light fandango Senior Member

    To create a forward double bunk on a tri this size it probably has to be a pop out as opposed to a pop up.
     
  4. dsigned
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    dsigned O.R.C. Hunter

    I seem to remember our Cal 20 had a forward bunk that could sleep (small) adults. I think it could be done with a 27 ft tri
     
  5. UpOnStands
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    UpOnStands Senior Member

    Feet are small, so put in a full width "foot shelf" say 70 cm wide x 70 cm long in the bows that abuts two swinging mini bunks. Each half the width of the hull by 1.2 m long.
    Hinged on the outboard edges so when not sleeping they can be swung up to make more space.
     
  6. trip the light fandango
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    trip the light fandango Senior Member

    Yes, it is quite feasible you're right, also having your feet toward the bow is safer under way as I read on a previous post. I really like the Nicol Piver style that is a feature on this forum, the aeroplane type wing beam can help create a roomy feel around where your head/shoulders would be . I like the way the main mass of those tri's is aft of the centre, nice protection from going A over T, clever design.. I have kind of realised I hijacked a perfectly good design concept of a rounded bow, apologies .
     
    Last edited: May 21, 2018
  7. Doug Lord
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    Doug Lord Flight Ready

    The ama bow on SuperFoiler is interesting and may have more applications:

    SuperFoilerSydney2018D1_07_1.jpg
    SuperfoilerSydney--euroflex.jpg
     
  8. dsigned
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    dsigned O.R.C. Hunter

    Doug Lord likes this.
  9. Dolfiman
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    Dolfiman Senior Member

    dsigned and Doug Lord like this.
  10. Doug Lord
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    Doug Lord Flight Ready

    I'm amazed that those amas are immersed so far even with the curved lifting boards? Beautiful boat except for that......
     
  11. dsigned
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    dsigned O.R.C. Hunter

    Full carbon...how many appendages/organs does it cost? It still has a pretty sharp bow, so your interior volume is going to be way less than an equivalent 26 ft monohull. It looks much more like a day sailer than something you'd want to spend any significant amount of time on. Looks wicked fast though.
     
  12. Doug Lord
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    Doug Lord Flight Ready

    dsigned, the main hull flare is pretty substantial on this boat. Looks to me like it makes a lot of room forward that might even be improved following Dolfimans suggestion. Take a close look at the main hull.
     
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  13. bruceb
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    bruceb Senior Member

    Hi Doug, I have been following this thread- I have had much the same ideas. I have spent quite a few hours watching the bows of my Bucs fly way above the water and thought they could be almost any shape/size and not affect the boat at all. "Most" of the time, the main hull's bow is well clear of the water, even the 24's bow knuckle is over a foot clear in typical flat water conditions, you would need a ladder to get to my 33. Of course, over size mains, big spinnakers, big wind and waves can use up the reserves, but I think a scow/flared bow would just give some extra reserve. Staying on top of the water seems better than trying to force your way through it. I would love the extra space up forward in my boat.
    Of course, I also have some opinions :). I think that 26 really looks nice, and I expect the wind is far higher than the sea conditions would indicate, BUT, I also think their float volume is too small for the rig and the nice curved boards are too far aft. When I experimented with the straight boards on my buc 24, they lifted the bows when pushed hard - until I broke one :(. Their curved boards should be better than mine.
    On about the same line of thought, what foil design seems to be the current favorite for curved foils in this size range? I expect you see a lot more than I do where I sail.
    Bruce
     
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  14. Doug Lord
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    Doug Lord Flight Ready

    Bruce, I'm seeing a lot more tris going with uptip foils because of their automatic altitude control-they can be designed to need very little to no adjustment on a regular basis. Maserati, Gitana 17, Banque Pop and possibly Macif are using them. They're ideal for foilers but I believe they'd probably be just as good for foil assist instead of curved foils because they would likely be able to be designed to have a lot less tendency to pop out when pressed real hard.
    The foils on the 26 don't appear to be matched too well to the characteristics of the boat-the ama should never submerge so much, in my opinion.
     

  15. redreuben
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    redreuben redreuben

    I like the lines of the Greg Lyn trimaran Girlfriend.
    That knuckle that flows from the bow to underneath the main body could be flare out on a fatter hull to create space in all the right areas.
     
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