Multihulls

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

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  1. Dolfiman

    Ultims in next Fastnet race 3rd August

    Dolfiman, Jul 6, 2019 ... 2
    Replies:
    18
    Views:
    2,683
    Doug Lord
    Aug 21, 2019
  2. Doug Lord

    Ultims Brest Oceans Race

    Doug Lord, Dec 12, 2018
    Replies:
    3
    Views:
    1,877
    Doug Lord
    Apr 5, 2019
  3. Dolfiman

    Ultims are back, for the Dhream Cup july 19

    Dolfiman, Jul 17, 2020
    Replies:
    11
    Views:
    1,677
    Dolfiman
    Jul 22, 2020
  4. Dolfiman

    Ultims are back in 2021

    Dolfiman, May 7, 2021 ... 2
    Replies:
    26
    Views:
    12,015
    Dolfiman
    Nov 24, 2021
  5. Dolfiman

    Ultims 2018-2019

    Dolfiman, Mar 29, 2018 ... 2 3 4
    Replies:
    52
    Views:
    7,285
    Doug Lord
    Oct 27, 2018
  6. Corley

    Ultime trimaran Banque Populaire IX

    Corley, Aug 23, 2016
    Replies:
    0
    Views:
    1,783
    Corley
    Aug 23, 2016
  7. rapscallion

    ultimate 3.5 M tri

    rapscallion, Sep 22, 2007
    Replies:
    6
    Views:
    3,321
    jamez
    Sep 24, 2007
  8. Doug Lord

    Ultimate 18' Tri ?

    Doug Lord, Jun 2, 2007 ... 2
    Replies:
    28
    Views:
    10,516
    Doug Lord
    Feb 4, 2008
  9. Doug Lord

    Ultim: Actual Leader

    Doug Lord, Apr 2, 2019
    Replies:
    2
    Views:
    2,683
    Doug Lord
    May 16, 2019
  10. Dolfiman

    Ultim Tri Macif round the world in solo

    Dolfiman, Nov 4, 2017 ... 5 6 7
    Replies:
    97
    Views:
    11,538
    Doug Lord
    Jan 26, 2018
  11. Doug Lord

    Ultim Foiling Trimarans Schedule and Behind the Scenes

    Doug Lord, Apr 5, 2019
    Replies:
    2
    Views:
    1,986
    Doug Lord
    May 16, 2019
  12. Doug Lord

    Ultim Class 32/23

    Doug Lord, Feb 18, 2018
    Replies:
    0
    Views:
    1,998
    Doug Lord
    Feb 18, 2018
  13. zigzag

    Typhoon

    zigzag, Aug 21, 2007
    Replies:
    1
    Views:
    3,202
    luftspringaren
    Aug 22, 2007
  14. markcampbell

    two trailer sailers to make a cat

    markcampbell, Apr 17, 2006 ... 2
    Replies:
    20
    Views:
    6,255
    Figgy
    Apr 22, 2006
  15. Corley

    two ORMA 60 Trimarans at Berrys Bay in Sydney

    Corley, Jul 28, 2011
    Replies:
    5
    Views:
    3,869
    Corley
    Jul 31, 2011
  16. peterAustralia

    two engines on centerline, Filipino Banca

    peterAustralia, Dec 27, 2020
    Replies:
    8
    Views:
    2,302
    fallguy
    Dec 28, 2020
  17. ProBoat

    Two current articles about catamarans in Professional BoatBuilder magazine

    ProBoat, Dec 9, 2019
    Replies:
    0
    Views:
    1,871
    ProBoat
    Dec 9, 2019
  18. seadreamer6

    twin masts on cat thoughts on

    seadreamer6, Oct 21, 2012 ... 2
    Replies:
    26
    Views:
    19,238
    brian eiland
    Nov 14, 2023
  19. zeroname

    Twin Hull Mine Hunter Design

    zeroname, May 4, 2012
    Replies:
    0
    Views:
    1,525
    zeroname
    May 4, 2012
  20. SURRYEQUIP

    Twin engines for cruising cat

    SURRYEQUIP, May 31, 2016 ... 2
    Replies:
    27
    Views:
    5,008
    UpOnStands
    Sep 10, 2016
  21. tribalance

    Twiggy trimaran

    tribalance, Dec 29, 2012 ... 2
    Replies:
    18
    Views:
    7,741
    3timesbetter
    Jan 13, 2013
  22. rapscallion

    Twiggy MKIII

    rapscallion, Feb 5, 2015 ... 2 3
    Replies:
    41
    Views:
    13,961
    oldsailor7
    Jun 13, 2016
  23. warwick

    twiggy drawings

    warwick, Apr 26, 2012 ... 2 3
    Replies:
    31
    Views:
    12,647
    triple jim
    Aug 1, 2016
  24. Twiggyman

    Twiggy 32 construction

    Twiggyman, Oct 15, 2014 ... 2
    Replies:
    28
    Views:
    10,087
    Jethro
    Sep 27, 2022
  25. thorpeboat

    twiggy 31 tri's

    thorpeboat, Oct 5, 2011
    Replies:
    3
    Views:
    2,669
    thorpeboat
    Oct 5, 2011
  26. Sundevil

    Tweaking a GHOST multihull design for a personal cruising watercraft

    Sundevil, Nov 16, 2014
    Replies:
    8
    Views:
    3,458
    hump101
    Nov 22, 2014
  27. rapscallion

    TWA vs. AWA

    rapscallion, Jul 7, 2012
    Replies:
    8
    Views:
    3,297
    rapscallion
    Jul 8, 2012
  28. Ikenzu

    Turning Grumman Canoe into waka ama

    Ikenzu, Oct 13, 2007
    Replies:
    9
    Views:
    16,085
    Ikenzu
    Oct 13, 2007
  29. SpiritWolf15x

    Turning a Tornado into a tri?

    SpiritWolf15x, Apr 22, 2010
    Replies:
    5
    Views:
    3,910
    Chris Ostlind
    Apr 24, 2010
  30. nikb

    Turboing a Buffalo Cat

    nikb, Jun 14, 2010
    Replies:
    1
    Views:
    2,200
    ned
    Jun 17, 2010
  31. ImaginaryNumber

    TURANOR PlanetSolar - Cat or Tri?

    ImaginaryNumber, Oct 14, 2012
    Replies:
    2
    Views:
    2,081
    Red Dwarf
    Oct 14, 2012
  32. visnu

    tunnel influence on resistance in catamarans

    visnu, Dec 31, 2008
    Replies:
    1
    Views:
    3,117
    masalai
    Dec 31, 2008
  33. brendan gardam

    tunnel clearance

    brendan gardam, Sep 2, 2020
    Replies:
    8
    Views:
    1,717
    Ad Hoc
    Sep 5, 2020
  34. Vincent DePilli

    tub tri dillemas

    Vincent DePilli, Mar 14, 2012
    Replies:
    5
    Views:
    2,023
    Corley
    Mar 14, 2012
  35. Richard Atkin

    Trying to design my own cat.

    Richard Atkin, Aug 12, 2007 ... 37 38 39
    Replies:
    579
    Views:
    85,219
    bobg3723
    Aug 27, 2008
  36. russmbiz

    Trying to design a homemade catamaran..

    russmbiz, Jul 11, 2010 ... 2
    Replies:
    23
    Views:
    13,194
    nimblemotors
    Apr 29, 2011
  37. Dolfiman

    Trophée Jules Vernes 2020

    Dolfiman, Nov 3, 2020
    Replies:
    2
    Views:
    1,399
    Dolfiman
    Nov 25, 2020
  38. Kym Bouckaert

    Triwanderer Hedley Nicol

    Kym Bouckaert, Jun 3, 2019
    Replies:
    6
    Views:
    1,998
    RJW Adelaide
    Jun 15, 2020
  39. eiasu

    TriStar Price differences

    eiasu, Dec 17, 2013 ... 2
    Replies:
    23
    Views:
    3,573
    cavalier mk2
    Dec 24, 2013
  40. rberrey

    Tristar 36' hull

    rberrey, Aug 21, 2011 ... 2 3 4
    Replies:
    47
    Views:
    9,234
    cavalier mk2
    Feb 19, 2012
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