Page 1 of 7 12 ... LastLast
Results 1 to 35 of 219

Thread: The small trimaran thread

  1. #1
    Join Date
    Nov 2004
    Location
    St. Charles, IL
    Posts
    1,136

    Default The small trimaran thread

    The outrigger and proa thread has been one of the most fun threads on WBF for me, but I'm leaning towards building a small trimaran to compliment my bigger catamaran made from Tamanu hulls and a Hobie 18.

    There are some great resources out there, but I thought it might be nice to gather information in one place. Lists of designs, pictures, and trip reports would be appreciated.

    To kick things off I thought I'd link http://smalltrimarans.com/blog/?p=7767#more-7767 post today of a homebuilt tri the builder is calling the E15 using a laser rig and rudder.



    What has spurred your imagination? I can think of a few in this category including the Seaclipper 16 & 20, the W17, the range from Mark Gumprecht, the XCR that finished the EC this year by Chris O, and others.

    Dan

  2. #2
    Join Date
    Jun 2005
    Location
    Virginia
    Posts
    4,535

    Default Re: The small trimaran thread

    Chris White's "Discovery 20" might be of interest to someone:
    Sometimes you've gotta leave the kibble out where the slow dogs can get some....
    ... Roy Blount, Jr.

  3. #3
    Join Date
    Nov 2004
    Location
    St. Charles, IL
    Posts
    1,136

    Default Re: The small trimaran thread

    Perfect addition! Shall we add the W17?


    Dan

  4. #4
    Join Date
    Nov 2007
    Posts
    4,951

    Default Re: The small trimaran thread

    Solway Dory's small trimarans deserve to be much better known. This company make terrific sailing canoes and canoe trimarans.



    http://www.solwaydory.co.uk/

  5. #5
    Join Date
    Jan 2010
    Location
    St. Augustine, Fl.,U.S.A.
    Posts
    131

    Default Re: The small trimaran thread

    We are currently building a W-17 at Seaworthy Solutions for a client . Mike Waters has several nice features that he has designed for this boat, including a wing mast, a kick-up spade rudder, and some really sexy curved akas as seen in Dan's pic above. There is a video of a recently completed W-17 on Youtube , sailing at speeds in the mid teens on a reefed main alone. Maybe someone who is more computer savvy than I could upload it to this thread, Scott

  6. #6
    Join Date
    Nov 2007
    Posts
    4,951

    Default Re: The small trimaran thread

    Last edited by keyhavenpotterer; 04-12-2012 at 04:41 AM.

  7. #7
    Join Date
    Nov 2007
    Posts
    4,951

    Default Re: The small trimaran thread

    Mosquito looks amazing and completed this years Everglades.



    Blog here http://sailnaway.blogspot.co.uk/

  8. #8
    Join Date
    Nov 2004
    Location
    St. Charles, IL
    Posts
    1,136

    Default Re: The small trimaran thread

    Chris O's XCR also completed the EC (driven by Ben and his wife) this year including the Nightmare section of the Wilderness Waterway. Used as a canoe, outrigger, and trimaran!





    Kellan Hatch's version of XCR

    Dan
    Last edited by Dan St Gean; 04-18-2012 at 02:35 PM.

  9. #9
    Join Date
    Nov 2004
    Location
    St. Charles, IL
    Posts
    1,136

    Default Re: The small trimaran thread

    Roger Mann's tri was damaged in the UFC attempt, but looked really interesting as well.



    Dan

  10. #10
    Join Date
    Nov 2004
    Location
    St. Charles, IL
    Posts
    1,136

    Default Re: The small trimaran thread

    How about Wade's Short Dragon trimaran conversion?



    Dan

  11. #11
    Join Date
    May 2007
    Location
    Seattle
    Posts
    4,848

    Default Re: The small trimaran thread

    Great thread: I am really intrigued with small tris
    The cure for everything is salt water - sweat, tears, or the sea
    Isak Dinesen

  12. #12
    Join Date
    Nov 2004
    Location
    St. Charles, IL
    Posts
    1,136

    Default Re: The small trimaran thread

    Seaclipper 20 has some attention here and elsewhere.


  13. #13
    Join Date
    Nov 2004
    Location
    St. Charles, IL
    Posts
    1,136

    Default Re: The small trimaran thread

    Richard Wood's Strike series


  14. #14
    Join Date
    Nov 2004
    Location
    St. Charles, IL
    Posts
    1,136

    Default Re: The small trimaran thread

    Frank Smoot's self designed tri


  15. #15
    Join Date
    Nov 2004
    Location
    St. Charles, IL
    Posts
    1,136

    Default Re: The small trimaran thread

    Cross 18


  16. #16
    Join Date
    Jan 2008
    Posts
    754

    Default Re: The small trimaran thread

    I always liked Kurt Hughes' designs. I sent off for study plans several years ago for his 16' daysailer.



    A lot of his designs are "cylinder molded", in that thin ply is laminated over a mold, then cut out and tortured. Its a little less work than constant camber.



    I like the Chris White Discovery, too. While the dory type hulls of some of the designs are easy to build, it seems like it isn't so much more work to build a better shape.
    I was always tempted to do a glued lap main hull. Remember the Peter Spronk cats?

    Cricket

  17. #17
    Join Date
    Nov 2004
    Location
    St. Charles, IL
    Posts
    1,136

    Default Re: The small trimaran thread

    Seaclipper 16





    Last edited by Dan St Gean; 04-16-2012 at 09:02 AM.

  18. #18
    Join Date
    Nov 2004
    Location
    St. Charles, IL
    Posts
    1,136

    Default Re: The small trimaran thread

    Quote Originally Posted by jim_cricket View Post
    I always liked Kurt Hughes' designs. I sent off for study plans several years ago for his 16' daysailer.



    A lot of his designs are "cylinder molded", in that thin ply is laminated over a mold, then cut out and tortured. Its a little less work than constant camber.



    I like the Chris White Discovery, too. While the dory type hulls of some of the designs are easy to build, it seems like it isn't so much more work to build a better shape.
    I was always tempted to do a glued lap main hull. Remember the Peter Spronk cats?

    Cricket
    A glued lap trimaran of the right design (spoon bow perhaps? High aspect gaff rig?) would blow some minds.

  19. #19
    Join Date
    Nov 2004
    Location
    St. Charles, IL
    Posts
    1,136

    Default Re: The small trimaran thread

    Mark Gumprecht's drifter 17


  20. #20
    Join Date
    Nov 2004
    Location
    St. Charles, IL
    Posts
    1,136

    Default Re: The small trimaran thread

    Farrier Tramp

  21. #21
    Join Date
    Nov 2004
    Location
    St. Charles, IL
    Posts
    1,136

    Default Re: The small trimaran thread

    Newick's Tremolino


  22. #22
    Join Date
    May 2009
    Location
    Fort Worth, Texas, USA
    Posts
    1,793

    Default Re: The small trimaran thread

    Does anyone know what happened in the UFC? What was the damage. I have found almost nothing about the actual experiences from this year. Any links? I would also like to know about Mosquito - I have the SOS link.

    Quote Originally Posted by Dan St Gean View Post
    Roger Mann's tri was damaged in the UFC attempt, but looked really interesting as well.



    Dan

  23. #23
    Join Date
    Nov 2007
    Posts
    4,951

    Default Re: The small trimaran thread

    My appologies for the repeat posting. Here's a french tri from Giles Montaubin which he entered into the WB design competition. His boats have won many of the European Raid events so his designs have great pedigree. Triboulet is 6.8m long, 24 sq m sail and only weighs 380kgs. http://chantiermer.wordpress.com/productions/triboulet/

    Last edited by keyhavenpotterer; 04-13-2012 at 08:44 AM.

  24. #24
    Join Date
    May 2009
    Location
    Fort Worth, Texas, USA
    Posts
    1,793

    Default Re: The small trimaran thread

    Reply #23 is a repeat of #14. If you haven't seen Frank Smoots web site it is interesting. www.diy-tris.com

  25. #25
    Join Date
    Jun 2000
    Location
    Douglasville, Ga
    Posts
    3,615

    Default Re: The small trimaran thread

    Quote Originally Posted by upchurchmr View Post
    Reply #23 is a repeat of #14. If you haven't seen Frank Smoots web site it is interesting. www.diy-tris.com
    It may have been a repeat, but i had no idea it was in duckworks this month. I would love plans for that boat.

    http://www.duckworksmagazine.com/12/...oot/index.html
    Last edited by Tom Wilkinson; 04-13-2012 at 10:16 AM.
    Tom

  26. #26
    Join Date
    May 2009
    Location
    Fort Worth, Texas, USA
    Posts
    1,793

    Default Re: The small trimaran thread

    The website has a little more detail than the Duckworks article. So far Frank hasn't offered plans. He has had three iterations of the folding boat - primarily the hull, with some interesting observations.

    There is another thread with some interesting discussion http://www.boatdesign.net/forums/mul...ver-41318.html

    keyhavenpotterer,

    My comment wasn't meant to be a criticism, sorry it sounded wrong.

    Marc
    Last edited by upchurchmr; 04-13-2012 at 11:43 AM.

  27. #27
    Join Date
    Nov 2004
    Location
    St. Charles, IL
    Posts
    1,136

    Default Re: The small trimaran thread

    Gary Dierking outriggers as trimarans:
    Ulua

    Tamanu or Wa'apa

    or his new Va'Motu could be rigged that way too.

  28. #28
    Join Date
    Jun 2000
    Location
    Madison Wisconsin
    Posts
    8,245

    Default Re: The small trimaran thread

    Tris in the 20' range can be awfully nice boats (especially those where you're not trying to add a full cabin and do it with boom tents or similar shelters). All the extra cockpit and net room can really spoil you. About the only thing that really bugged me about our Farrier was that when at anchor in a chop, three hulls can at times have a pretty nausiating, round and round, up and down rocking motion.


  29. #29
    Join Date
    May 2009
    Location
    Fort Worth, Texas, USA
    Posts
    1,793

    Default Re: The small trimaran thread

    There are a significant group of small trimarans drawn by Marples and Jim Brown, pity I could not find a link to any pictures or illustrations on the designers website. The CC23 by Marples was one that kept my interest for a long time.

  30. #30
    Join Date
    Nov 2007
    Posts
    4,951

    Default Re: The small trimaran thread

    Eric Henseval's Sardine Run is 5.5m 300kg, can sleep two internally and the hulls look quite simple to build.





    http://hensevalyd-english.jimdo.com/...ine-run-5-50m/

    Ed

  31. #31
    Join Date
    Nov 2011
    Location
    Rotorua, NZ
    Posts
    89

    Default Re: The small trimaran thread

    Hi everyone, great idea for a thread Dan.
    I've been pondering options for leeway prevention beyond daggerboard or leeboard. I'm thinking asymmetric amas and or some low aspect keels on the amas. Anyone have suggestions for asymmetric foil shapes? Could the whole ama be a foil section, or is just half of a symmetric shape be OK? ditto for keels and should they be full ama length or shorter.
    I did read that asymmetric foils only offer a tiny advantage over symmetric, something like the equivalent of 3 degrees angle of attack. In that case perhaps ama and optional keel might just as well be symmetric, my understanding is a symmetric foil will start to generate lift as soon as AOA is over 0 degrees, this would happen as soon as any leeway is happening. My boat and more importantly my sailing skills are far from being sharp enough to worry about 3 degrees!
    cheers Dave

  32. #32
    Join Date
    Nov 2011
    Location
    Rotorua, NZ
    Posts
    89

    Default Re: The small trimaran thread

    The Seaclipper range by John Marples is shown here:

    http://www.duckflatwoodenboats.com/m...gallery?KID=52

    My interest is at the very small end of the range.

    I looked a bit further and found the Constant Camber Tri range (CC23 mentioned earlier)

    http://www.duckflatwoodenboats.com/m...gallery?KID=55


    Dave P
    Last edited by DavePont; 04-16-2012 at 05:08 AM.

  33. #33
    Join Date
    Nov 2004
    Location
    St. Charles, IL
    Posts
    1,136

    Default Re: The small trimaran thread

    Quote Originally Posted by DavePont View Post
    Hi everyone, great idea for a thread Dan.
    I've been pondering options for leeway prevention beyond daggerboard or leeboard. I'm thinking asymmetric amas and or some low aspect keels on the amas. Anyone have suggestions for asymmetric foil shapes? Could the whole ama be a foil section, or is just half of a symmetric shape be OK? ditto for keels and should they be full ama length or shorter.
    I did read that asymmetric foils only offer a tiny advantage over symmetric, something like the equivalent of 3 degrees angle of attack. In that case perhaps ama and optional keel might just as well be symmetric, my understanding is a symmetric foil will start to generate lift as soon as AOA is over 0 degrees, this would happen as soon as any leeway is happening. My boat and more importantly my sailing skills are far from being sharp enough to worry about 3 degrees!
    cheers Dave
    The Wood's Strike series has a new addition--the Strike 15. It is potentially using a small LAR (low aspect ratio) on the amas to accomplish what you are mentioning. It's being used successfully on Little wing tri's (plans not available sadly).


    Dan

  34. #34
    Join Date
    Feb 2007
    Location
    Waterbury, Connecticut
    Posts
    1,876

    Default Re: The small trimaran thread

    The Windrider 17 has a low AR keel on the vaka. It goes to windward, but not great, I hear. I think if one is going to have low AR, then you need to balance that with high area. -- Wade

  35. #35
    Join Date
    Nov 2004
    Location
    St. Charles, IL
    Posts
    1,136

    Default Re: The small trimaran thread

    Quote Originally Posted by wtarzia View Post
    The Windrider 17 has a low AR keel on the vaka. It goes to windward, but not great, I hear. I think if one is going to have low AR, then you need to balance that with high area. -- Wade
    Well, clearly one doesn't use it for racing where every last advantage is necessry to win. however, Warren is a bit of a hot shoe as is Richard Woods--and neither of their LAR keels are really the hull shape like the W17 or the Hobie Wave, Getaway, or H16 for that matter. The 16's try to load up the rudder as much as possible to get decent pointing. In a much different vein and craft style, so does Matt Layden's paradox and similar hulls.


    For a cruiser, it's probably an acceptable compromise. Me? I like kick up boards if I can have them.

    Dan

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •