Tri progress

Discussion in 'Multihulls' started by tamas, Aug 4, 2013.

  1. tamas
    Joined: May 2009
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    Location: Brisbane

    tamas Junior Member

    Hi,
    I have been held up with family things so have not been able to get the boat in the water yet. I was all set last weekend except it rained and the wind got to about 25+knts. I hope this weekend will be it. It is finished except for a few paint touch up's and polish the hobie hulls.

    I have attached a recent photo. I think it looks good and hope it sails as well. I have a coupel of weeks off work over Christmas and a friend with F22 is coming down so I hope to get out with him as well as sail against him. That will give me an idea of speed ability.

    The boat has sparked a bit of interest from a couple of other club members so maybe we will end up with a few more similar.

    I will update as soon as I have had it in the water.

    Cheers
     

    Attached Files:

    1 person likes this.
  2. Corley
    Joined: Oct 2009
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    Location: Melbourne, Australia

    Corley epoxy coated

    Good work, it looks sweet eagerly awaiting the first sailing report.
     
  3. upchurchmr
    Joined: Feb 2011
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    Location: Ft. Worth, Tx, USA

    upchurchmr Senior Member

    Very nice looking.
    When you get a chance how about taking a picture from on top of the carport?
    I'm only sort of joking.
    Fully folded and fully open would be neat too. At least one side.
     
  4. Tom.151
    Joined: Jul 2009
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    Location: New England, USA

    Tom.151 Senior Member

    Tamas,
    Thanks for keeping us updated

    Boat looks better every time you post a picture

    Good luck sailing!!!
     
  5. Doug Lord
    Joined: May 2009
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    Location: Cocoa, Florida

    Doug Lord Flight Ready

    =====================
    Way to go ,Tamas! Great job-hope she goes like you want her to. Looking forward to further updates......
     
  6. upchurchmr
    Joined: Feb 2011
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    Location: Ft. Worth, Tx, USA

    upchurchmr Senior Member

    Tamas,

    Can you tell us what the rig will be?
    Area, mast height and all those fun things?

    I hope I haven't missed where you already called those out.
    Any idea what the hulls weigh?
     
  7. tamas
    Joined: May 2009
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    Location: Brisbane

    tamas Junior Member

    The rig is a std hobie 20 mirical rig, I am using from the hobie 20 donor amas. I think that is about 23m2 up wind area and I have 2 spinnakers, 1 from a 14ft skiff and the other from a 16ft skiff. Not sure the area of those but the 16ft'er will be to big because it will have to attach up the mast where it is un-stayed. The 14ft'er is ok and approx 30m2, I think. hard to work out the area of an asso. The mast is 9.5m. It has a carbon tip of approx 2.4m.

    I think the weight is approx 300kg which includes rigging, outboard etc, Add crew and their gear to get sailing weight. I will get it weighted over Xmas if I have the time.

    I managed to move the entire boat sideways in the carport when it was in its building cradle. I dragged the front accross a 1/2 meter and then the back a 1/2 meter until I moved it about 3 meters. It was heavy but I am not a huge bloke so that gives you an idea of the weight as well. I then got it on the railer by winching the trailer under the bow and working it onto the trailer. Funny thing, I had to do it while un-folded because when folded the arms are higher than the roof of the carport. Lucky it was narrower than the carport or I would have had to dismantle it. The things you dont think about.

    cheers
     
  8. Petros
    Joined: Oct 2007
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    Location: Arlington, WA-USA

    Petros Senior Member

    I just caught this thread. Nice work, the center hull looks fast and sexy.

    Seems to me you should paint over the "HC" logos on the ama or you will have a lot very confusted sailors when they think you are sailing some kind of "new" hobie cat model.

    Or, you can leave it and let them guess...
     
  9. luckystrike
    Joined: Feb 2010
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    Location: Germany

    luckystrike Power Kraut

    Tamas,

    I wish you the best of wind for the first sailing.

    How do you want to control the fore- and aft movement of the amas? I see just one bolt per mainhull/ beam conection.

    Do you want to string some diagonal lines from front mainhull to aft ama and the other way around. Same as the (older) Farriers do it?

    Best Regards, Michel
     
  10. tamas
    Joined: May 2009
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    Location: Brisbane

    tamas Junior Member

    Test Sail.
    A few problem I encountered like the inner stays hitting the spreaders which stopped the mast rotating properly. They are only used to hold the mast up before going into the water and unfolding the boat. Nothing much really.

    Someone might be able to comment on the boat speed because i don't know if it is good or not.

    Wind was gusting to about 14knts. My meter said 11.1knts but I was in the lee of the shore. The average of 2 local weather stations was used to get 14knts.

    To windward the boat got to 7.2knts in a gust. Only 1 test was done so at other times it may have been better as I did not know that gust speed.

    2 sail reach we got to 12.4knts. Again may have been faster depending on what the gust was at the time. Only 1 GPS test done and it was going faster before the GPS came out.

    Pointing, seemed to sail around 45 Deg but this was difficult to tell because of conditions. Wind coming across the passage and shifting 20deg.

    Boat accelerated quickly.

    Transition from moving 6knts to planning (or what seemed to be planing) was not noticeable like it is on a mono or motor boat it just went faster.

    Planed (or what I thought was planing) at about 9 to 10 knts boat speed.

    Spinnaker not tested. No creaks or gowns – good sign.

    Cheers
     

    Attached Files:

  11. Doug Lord
    Joined: May 2009
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    Location: Cocoa, Florida

    Doug Lord Flight Ready

    Tamas ,sounds great! And she looks real good under sail.
     
  12. luckystrike
    Joined: Feb 2010
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    Location: Germany

    luckystrike Power Kraut

    Hi Tamas,

    well done and congrats for your first sail! Some big stones are falling from my heart.

    The rapid growth of your tri up to the birth makes me thinkt that the beachcat to tri conversion with a sharpie mainhull is a really interesting alternative to a conventional tri built. Fast and easy to construct, very cost effective with good results an the water.

    We will see what will happen in the future. The next boat is already on the drawing table.

    I think the first speed results are promising, but don't put too much inference from the first sail. You have to learn to feel your boat first to know what does it best in different conditiones. A new boat always needs evolution before it reaches its final performance.

    The big question is ... are you happy with your boat? Does it feel good?

    Best Regards, Michel
     
  13. tamas
    Joined: May 2009
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    Location: Brisbane

    tamas Junior Member

  14. tamas
    Joined: May 2009
    Posts: 38
    Likes: 1, Points: 0, Legacy Rep: 15
    Location: Brisbane

    tamas Junior Member


  15. Corley
    Joined: Oct 2009
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    Location: Melbourne, Australia

    Corley epoxy coated

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