Multihulls

Discuss multi-hull sailboat design, production and custom sailing catamarans and trimarans.

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  1. Doug Lord

    Ultim Foiling Trimarans Schedule and Behind the Scenes

    Doug Lord, Apr 5, 2019
    Replies:
    2
    Views:
    993
    Doug Lord
    May 16, 2019
  2. Dolfiman

    Ultim Tri Macif round the world in solo

    Dolfiman, Nov 4, 2017 ... 5 6 7
    Replies:
    97
    Views:
    8,404
    Doug Lord
    Jan 26, 2018
  3. Doug Lord

    Ultim: Actual Leader

    Doug Lord, Apr 2, 2019
    Replies:
    2
    Views:
    1,933
    Doug Lord
    May 16, 2019
  4. Doug Lord

    Ultimate 18' Tri ?

    Doug Lord, Jun 2, 2007 ... 2
    Replies:
    28
    Views:
    9,374
    Doug Lord
    Feb 4, 2008
  5. rapscallion

    ultimate 3.5 M tri

    rapscallion, Sep 22, 2007
    Replies:
    6
    Views:
    2,748
    jamez
    Sep 24, 2007
  6. Corley

    Ultime trimaran Banque Populaire IX

    Corley, Aug 23, 2016
    Replies:
    0
    Views:
    1,264
    Corley
    Aug 23, 2016
  7. Dolfiman

    Ultims 2018-2019

    Dolfiman, Mar 29, 2018 ... 2 3 4
    Replies:
    52
    Views:
    4,865
    Doug Lord
    Oct 27, 2018
  8. Dolfiman

    Ultims are back in 2021

    Dolfiman, May 7, 2021
    Replies:
    2
    Views:
    310
    Dolfiman
    Jun 8, 2021
  9. Dolfiman

    Ultims are back, for the Dhream Cup july 19

    Dolfiman, Jul 17, 2020
    Replies:
    11
    Views:
    766
    Dolfiman
    Jul 22, 2020
  10. Doug Lord

    Ultims Brest Oceans Race

    Doug Lord, Dec 12, 2018
    Replies:
    3
    Views:
    1,025
    Doug Lord
    Apr 5, 2019
  11. Dolfiman

    Ultims in next Fastnet race 3rd August

    Dolfiman, Jul 6, 2019 ... 2
    Replies:
    18
    Views:
    1,488
    Doug Lord
    Aug 21, 2019
  12. Dolfiman

    Ultims in Transat Jacques Vabre

    Dolfiman, Oct 29, 2017 ... 3 4 5
    Replies:
    66
    Views:
    5,142
    Dolfiman
    Feb 16, 2019
  13. rael dobkins

    Ultra lightweight deck+Nonskid DIY style...

    rael dobkins, Sep 9, 2017
    Replies:
    4
    Views:
    2,810
    rael dobkins
    Sep 18, 2017
  14. schakel

    ultraluxum fast cruising trimaran

    schakel, Jan 21, 2014
    Replies:
    3
    Views:
    2,930
    schakel
    Jan 24, 2014
  15. Inquisitor

    Un-flippable Proa

    Inquisitor, Jul 7, 2010 ... 2 3
    Replies:
    33
    Views:
    6,447
    ThomD
    Aug 7, 2010
  16. Inquisitor

    Un-stayed mast flexibility

    Inquisitor, Jul 23, 2010 ... 2
    Replies:
    22
    Views:
    3,632
    Eric Sponberg
    Jul 28, 2010
  17. Doug Lord

    Understanding Curved Boards(in the A Class)

    Doug Lord, Nov 5, 2010
    Replies:
    0
    Views:
    1,950
    Doug Lord
    Nov 5, 2010
  18. Pericles

    Underwater hull form for sailing catamarans

    Pericles, Jan 7, 2008 ... 2 3 4
    Replies:
    56
    Views:
    21,845
    oldsailor7
    Oct 31, 2008
  19. wizzwas

    Unique 5' remote control trimaran, thoughts and advice

    wizzwas, Sep 18, 2017
    Replies:
    14
    Views:
    1,863
    UpOnStands
    Oct 31, 2017
  20. buzzman

    Unknown 24' tri for sale Gold Coast Oz

    buzzman, May 30, 2013
    Replies:
    1
    Views:
    1,446
    catsketcher
    May 31, 2013
  21. MickH

    Unraveling the origin mysteries of my cat

    MickH, Feb 1, 2019
    Replies:
    3
    Views:
    871
    Angélique
    Feb 5, 2019
  22. Nico Crispi

    Unstayed carbon fiber mast on cruising catamaran?

    Nico Crispi, Jul 15, 2017 ... 3 4 5
    Replies:
    61
    Views:
    9,074
    brian eiland
    Jul 8, 2020
  23. Ric Oliveira

    Unstayed cat ketch tri?

    Ric Oliveira, Jul 12, 2007
    Replies:
    0
    Views:
    2,923
    Ric Oliveira
    Jul 12, 2007
  24. jamez

    Unusual 'foil' stabilised tri

    jamez, Dec 8, 2018 ... 2
    Replies:
    22
    Views:
    2,284
    Angélique
    May 28, 2019
  25. rlawler

    upside-down hydrofoils

    rlawler, Oct 1, 2010
    Replies:
    7
    Views:
    3,053
    Doug Lord
    Oct 1, 2010
  26. Doug Lord

    Uptip Foils

    Doug Lord, Oct 24, 2016 ... 2
    Replies:
    26
    Views:
    7,160
    Doug Lord
    May 21, 2018
  27. Jawad

    urgent request for help plz about pentamaran

    Jawad, Oct 28, 2007
    Replies:
    7
    Views:
    2,909
    Jawad
    Nov 8, 2007
  28. tspeer

    US Sailing Drops Multihulls From Olympics

    tspeer, Mar 24, 2007
    Replies:
    5
    Views:
    2,299
    yipster
    Mar 24, 2007
  29. Doug Lord

    USA-Technical Details-Helium used

    Doug Lord, Mar 27, 2010 ... 6 7 8
    Replies:
    107
    Views:
    13,630
    Doug Lord
    May 15, 2010
  30. Tchamo

    Use foam core and plywood in a catamaran hull

    Tchamo, Apr 7, 2019 ... 2 3
    Replies:
    32
    Views:
    4,817
    trip the light fandango
    May 19, 2019
  31. oceandreams

    used blue water capable cat's under $125K..recomendations???

    oceandreams, Nov 8, 2010
    Replies:
    14
    Views:
    4,690
    sandy daugherty
    Jan 30, 2011
  32. Emerson White

    Using a foil to fly a hull, rather than a whole boat?

    Emerson White, Feb 1, 2017
    Replies:
    1
    Views:
    1,193
    Doug Lord
    Feb 1, 2017
  33. Roni

    Using aluminiun masts sections as tranverse structure instead of bulkheads

    Roni, Jul 20, 2020 ... 2
    Replies:
    29
    Views:
    1,309
    Roni
    Jul 24, 2020
  34. Corley

    Using biaxial tape to replace keelson and stem lamination on off the beach trimaran

    Corley, May 12, 2011
    Replies:
    1
    Views:
    1,269
    catsketcher
    May 12, 2011
  35. GOTTABSOMEWHERE

    Uss Independence

    GOTTABSOMEWHERE, Nov 10, 2009
    Replies:
    2
    Views:
    7,921
    Gannet
    Nov 10, 2009
  36. rede2

    utility cat

    rede2, Mar 5, 2012
    Replies:
    2
    Views:
    1,442
    rede2
    Mar 8, 2012
  37. markstrimaran

    UV proof synthetic standing rigging for mast stays.

    markstrimaran, Mar 1, 2019 ... 2 3
    Replies:
    42
    Views:
    2,729
    trip the light fandango
    Mar 12, 2019
  38. Doug Lord

    V-44 Albatross World Speed Sailing Contender

    Doug Lord, Sep 29, 2010 ... 2 3
    Replies:
    31
    Views:
    13,048
    Verney
    May 24, 2011
  39. tighkey

    Va'a

    tighkey, May 25, 2006 ... 2
    Replies:
    20
    Views:
    12,150
    tighkey
    Mar 27, 2011
  40. Corley

    Vale Dick Newick

    Corley, Aug 29, 2013
    Replies:
    13
    Views:
    2,592
    ImaginaryNumber
    Sep 16, 2013
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