Multihulls

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

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  1. Konstanty

    Tanker proa

    Konstanty, Apr 18, 2016 ... 5 6 7
    Replies:
    97
    Views:
    10,668
    gonzo
    Apr 18, 2018
  2. Dolfiman

    Ultim Tri Macif round the world in solo

    Dolfiman, Nov 4, 2017 ... 5 6 7
    Replies:
    97
    Views:
    8,423
    Doug Lord
    Jan 26, 2018
  3. Jetboy

    Folding arm materials - Any reason not to use Aluminum?

    Jetboy, Feb 7, 2012 ... 5 6 7
    Replies:
    97
    Views:
    13,851
    gypsy28
    Jul 31, 2012
  4. lucdekeyser

    80 foot cargo harryproa

    lucdekeyser, Nov 15, 2020 ... 5 6 7
    Replies:
    98
    Views:
    7,968
    Dejay
    May 8, 2021
  5. langdon2

    Trimaran crossbeam calculations

    langdon2, Jun 5, 2011 ... 5 6 7
    Replies:
    98
    Views:
    25,980
    Richard Woods
    Jun 13, 2011
  6. bad dog

    Sydney-Hobart won by multihull!!

    bad dog, Dec 26, 2009 ... 5 6 7
    Replies:
    100
    Views:
    18,334
    Corley
    Oct 4, 2012
  7. LucD

    Seeking info on Tri-Star or Piver trimaran 23 to 27 Feet

    LucD, Sep 25, 2009 ... 5 6 7
    Replies:
    100
    Views:
    37,422
    FredMG
    Apr 8, 2010
  8. marshmat

    Multi-masted sailing cats

    marshmat, Jan 3, 2009 ... 5 6 7
    Replies:
    100
    Views:
    26,726
    marshmat
    Jan 2, 2010
  9. Doug Lord

    Offshore Foiling Revolution-Gitana

    Doug Lord, Apr 16, 2015 ... 5 6 7
    Replies:
    101
    Views:
    17,972
    Doug Lord
    Apr 24, 2016
  10. PetterM
    Locked

    length/beam ratio of around 20

    PetterM, Apr 21, 2015 ... 5 6 7
    Replies:
    102
    Views:
    13,505
    Boat Design Net Moderator
    Apr 29, 2015
  11. Manfred.pech
    Locked

    Hinged Bruce Foil Proa

    Manfred.pech, May 7, 2013 ... 5 6 7
    Replies:
    102
    Views:
    18,610
    tomas
    Aug 23, 2013
  12. Doug Lord

    America's Cup 2010: Race Thread

    Doug Lord, Feb 12, 2010 ... 5 6 7
    Replies:
    104
    Views:
    10,209
    Doug Lord
    Mar 2, 2010
  13. Corley

    Route des Princes 2013

    Corley, Jun 5, 2013 ... 6 7 8
    Replies:
    106
    Views:
    10,889
    pipeline
    Jul 13, 2013
  14. guzzis3

    crowther 10 hull refit: how much ?

    guzzis3, Jan 16, 2012 ... 6 7 8
    Replies:
    106
    Views:
    14,590
    guzzis3
    Mar 17, 2012
  15. bjn

    Why does multihulls have pointy bows?

    bjn, Jan 22, 2017 ... 6 7 8
    Replies:
    107
    Views:
    13,490
    BobBill
    Apr 23, 2021
  16. Skip JayR

    12th edition of Transat Jacques Vabre: 8 Tris (Multi50 & Maxis) started on Sunday

    Skip JayR, Oct 26, 2015 ... 6 7 8
    Replies:
    107
    Views:
    11,484
    Skip JayR
    Nov 11, 2015
  17. idkfa

    T20 -- New development class

    idkfa, Sep 26, 2011 ... 6 7 8
    Replies:
    107
    Views:
    15,268
    waynemarlow
    Feb 28, 2015
  18. Doug Lord

    High Power Very Small Tri(s)-10'-14'-why not?

    Doug Lord, Jun 27, 2010 ... 6 7 8
    Replies:
    107
    Views:
    20,247
    Doug Lord
    Aug 3, 2010
  19. Doug Lord

    USA-Technical Details-Helium used

    Doug Lord, Mar 27, 2010 ... 6 7 8
    Replies:
    107
    Views:
    13,658
    Doug Lord
    May 15, 2010
  20. Earl Boebert

    Artemis Pitchpoled; 1 Dead

    Earl Boebert, May 9, 2013 ... 6 7 8
    Replies:
    108
    Views:
    9,908
    Doug Lord
    Jul 2, 2013
  21. AndrewK

    Load Paths in a Catamaran

    AndrewK, Feb 24, 2009 ... 6 7 8
    Replies:
    108
    Views:
    13,820
    Ad Hoc
    Mar 21, 2009
  22. BobBill

    Malibu Outrigger

    BobBill, Dec 16, 2011 ... 6 7 8
    Replies:
    110
    Views:
    29,050
    BobBill
    Oct 26, 2016
  23. Corley

    Race to Alaska and a listing of race entrants so far

    Corley, Apr 6, 2015 ... 6 7 8
    Replies:
    110
    Views:
    10,573
    cavalier mk2
    Jun 22, 2015
  24. Corley

    80' trimaran for Route du Rhum to be skippered by Lionel Lemanchois

    Corley, Aug 24, 2012 ... 6 7 8
    Replies:
    110
    Views:
    12,483
    Blackburn
    Feb 15, 2014
  25. Doug Lord

    Flying Phantom F 18 Catamaran

    Doug Lord, Jul 13, 2012 ... 6 7 8
    Replies:
    111
    Views:
    53,706
    Doug Lord
    Jun 4, 2019
  26. frank smith

    dory catamaran hull

    frank smith, Feb 2, 2010 ... 6 7 8
    Replies:
    111
    Views:
    42,658
    Motivator-1
    Jun 1, 2010
  27. buzzman

    Why don't lots more people sail multis..???

    buzzman, Aug 14, 2013 ... 6 7 8
    Replies:
    112
    Views:
    11,724
    El_Guero
    Sep 16, 2013
  28. Tcubed

    Proa design

    Tcubed, Sep 13, 2008 ... 6 7 8
    Replies:
    112
    Views:
    40,332
    rob denney
    Apr 15, 2009
  29. Becaris

    22m cruising cat design concept

    Becaris, Aug 3, 2008 ... 6 7 8
    Replies:
    114
    Views:
    17,640
    brian eiland
    Sep 7, 2009
  30. Fanie

    Anti Capsize / Damage and Sails

    Fanie, Dec 8, 2007 ... 6 7 8
    Replies:
    114
    Views:
    24,646
    yipster
    May 22, 2008
  31. Doug Lord

    Steve and Dave Clarks UFO

    Doug Lord, Aug 24, 2016 ... 6 7 8
    Replies:
    116
    Views:
    30,642
    Doug Lord
    Sep 11, 2019
  32. bscatam

    40 ft cruising cat design. First steps.

    bscatam, Mar 28, 2016 ... 6 7 8
    Replies:
    116
    Views:
    18,936
    bscatam
    Apr 15, 2017
  33. nickvonw

    Round Bilge vs hard chine

    nickvonw, Apr 11, 2011 ... 6 7 8
    Replies:
    119
    Views:
    51,675
    MikeJohns
    Jan 20, 2015
  34. outside the box

    Buccaneer 24, Buccaneer 28 and now Buccaneer 33 plans are also now to be available.

    outside the box, Jan 21, 2015 ... 7 8 9
    Replies:
    121
    Views:
    29,608
    oldmulti
    Jul 10, 2020
  35. oldsailor7

    Lock Crowther Kraken 25 Trimaran.

    oldsailor7, Oct 18, 2010 ... 7 8 9
    Replies:
    121
    Views:
    33,407
    oldsailor7
    Sep 27, 2015
  36. Doug Lord

    Banque Populaire V-Jules Verne Record Attempt- 11/21/11

    Doug Lord, Nov 21, 2011 ... 7 8 9
    Replies:
    123
    Views:
    19,298
    Corley
    Oct 5, 2012
  37. tamas

    Folding system loads

    tamas, Nov 11, 2013 ... 7 8 9
    Replies:
    124
    Views:
    16,500
    ThomD
    Dec 21, 2014
  38. Corley

    New 27' trimaran design by Kurt Hughes

    Corley, Aug 4, 2012 ... 7 8 9
    Replies:
    126
    Views:
    32,902
    Corley
    Oct 3, 2012
  39. boradicus

    Trimaran Design Concept with longer foils than the main hull

    boradicus, Jun 3, 2013 ... 7 8 9
    Replies:
    129
    Views:
    20,877
    boradicus
    Jul 6, 2013
  40. Swabber
    Locked

    Thailand Sailing Multihulls

    Swabber, Feb 19, 2009 ... 7 8 9
    Replies:
    130
    Views:
    20,109
    RHP
    Mar 23, 2009
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