Small trimarans under 20'

Discussion in 'Multihulls' started by Doug Lord, Jun 24, 2012.

  1. Cholsson
    Joined: Aug 2015
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    Cholsson Junior Member

    Here is a 2018 wrapup of my sailing with my small homemade trimarman Outlaw [​IMG]:) Happy new year from Sweden!
     
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  2. revintage
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    revintage Senior Member

    Happy New Year, Christopher, from another part of Sweden!
     
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  3. upchurchmr
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    upchurchmr Senior Member

    Cholsson,
    Congratulations on your boat.
    Really sweet.
    Not to be too critical, but it looks like a bigger ama (deeper) and higher akas would easily allow higher speeds.
    What do you think?

    Marc
     
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  4. Doug Lord
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    Doug Lord Flight Ready

    Exceptional boat-exceptional video-Great work! Happy New Year!
    PS-looking forward to the video after you add foils(?).........
     
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  5. Cholsson
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    Cholsson Junior Member

    Yes bigger amas with more volyme with centerboard in the ama would give higher top speed. And a longer boat would be even faster. But then its not the same boat. For 2019 i have lots of improvements coming up. Furling jib. New Code0. And other things. But its a long winter here. I will post when something cool is ready :) I need to make the boat little little more safe and more handle to be allowed competing in some sail race here.
     
  6. Dolfiman
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    Dolfiman Senior Member

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  7. Tiny Turnip
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    Tiny Turnip Senior Member

    Thanks Dolfiman - I do like this boat very much, even though it misses my criteria of two people carrying it up the beach!
     
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  8. Doug Lord
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    Doug Lord Flight Ready

    Smoots Slingshot-discovered this video by accident- seems pretty cool:
     
  9. Cholsson
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    Cholsson Junior Member

    Finally spring here in Sweden. Testing out all new improvments, my new jib and Code0 in the amazing weather :). Not that much wind, but fel great to be on the water.
    Failed with my action-cams a lot, but become someting at least :-D
     
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  10. Doug Lord
    Joined: May 2009
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    Doug Lord Flight Ready

    Quote from page 24, post 351, Jan 18, 2015:
    =====================
    Funny to look back on some of these older threads-particularly this one and the comments made by several people and summed up by Wayne above. He basically had the "feeling" that model testing was useless and could not be said to warrant a full size version of a concept such as the Fire Arrow.
    Whats funny is that about a year or two after this thread was started the basic "Fire Arrow Foil System" started to be used on large trimarans beginning with Maserati. Followed by Gitana 17 at 100' , Banque Pop-100', Macif jr(a converted 24' DIAM tri), and the 100' Macif.
    The concept of "downforce" from the main foil is used on every single one of these boats as is the concept of uptip ama foils! Planing amas are used on Gitana and probably on the others as well. And rudder t-foils are used on every boat above.
    I remain absolutely convinced that the Fire Arrow Foil System will revolutionize trimaran design especially when it is used on under 20' trimarans-in which case it could well revolutionize small boat foiling.

    Macif 24' test boat using the basic Fire Arrow Foil System:
    Macif Test boat.jpg

    Gitana 17 Flying on the Most Advanced Trimaran Foiling System Ever:
    [​IMG]

    Fire Arrow Doing Exactly the Same Thing:
    [​IMG]


    yes, it is a Revolution
     
    Last edited: Apr 21, 2019
  11. Gary Baigent
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    Gary Baigent Senior Member

    Doug in his delusional fantasy land ... as per usual. Has been corrected before but strangely never seems to penetrate - so posting a 40 odd year old image of a pioneering design. There are others but this will suffice.
     

    Attached Files:

  12. Doug Lord
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    Doug Lord Flight Ready

    Wrong again, Gary: Charles Heidsieck had a fixed, non adjustable foil on the main hull and unlike Fire Arrow, Maserati, Gitana 17, Macif jr, Macif and Banque Pop could NOT develop downforce -a key element of the mainfoil in the Fire Arrow Foil System and used on every single boat I just mentioned!!! Further,Heidsieck had NO rudder T-foils and was incapable of foiling. It didn't use UptiP ama foils as does every single boat that uses the basic Fire Arrow Foil System mentioned above.
    Why you continue to post a picture of a boat that was a design/build failure(way too heavy!) and could not foil remains a mystery to me!!
     
    Last edited: Apr 21, 2019
  13. Gary Baigent
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    Gary Baigent Senior Member

    Keep deluding yourself in your la la land.
     
  14. Doug Lord
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    Doug Lord Flight Ready

    From "Foilers!" on Charles Heidsieck:
    "But while he had to be light, he was heavy. Expected to weigh 13.2 tons, it was 5 more when it was launched and had to approach 20 tons in operation. Whose fault is it ? Some spoke of poor management of construction, others of insufficiently precise plans ..."
     

  15. Cholsson
    Joined: Aug 2015
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    Cholsson Junior Member

    Lets keep focus now in this thread to small trimarans larger than 10 feet and shorter than 20 feet :)
     
    Last edited: Apr 22, 2019
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