Multihulls

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

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  1. Dolfiman

    Brest Atlantiques 2019 - Ultims

    Dolfiman, Oct 31, 2019 ... 3 4 5
    Replies:
    63
    Views:
    3,478
    Dronerz
    Jun 21, 2020
  2. gpb

    Supernova trimaran

    gpb, May 22, 2009 ... 3 4 5
    Replies:
    63
    Views:
    21,304
    amphibian
    Jul 16, 2015
  3. upchurchmr

    Trimaran From a Tornado Cat

    upchurchmr, Oct 31, 2011 ... 3 4 5
    Replies:
    64
    Views:
    20,587
    Doug Lord
    Nov 19, 2011
  4. Doug Lord

    Multi 50 Design Rule: no vertical lift!

    Doug Lord, Aug 4, 2012 ... 3 4 5
    Replies:
    65
    Views:
    8,543
    Corley
    Aug 10, 2012
  5. Bruce Woods

    speed around a course

    Bruce Woods, Feb 4, 2008 ... 3 4 5
    Replies:
    65
    Views:
    8,636
    Meanz Beanz
    Feb 24, 2008
  6. Dolfiman

    Ultims in Transat Jacques Vabre

    Dolfiman, Oct 29, 2017 ... 3 4 5
    Replies:
    66
    Views:
    5,143
    Dolfiman
    Feb 16, 2019
  7. kaymaran
    Locked

    4.75m Trimaran Project

    kaymaran, Jan 2, 2016 ... 3 4 5
    Replies:
    66
    Views:
    10,876
    Boat Design Net Moderator
    Jan 10, 2016
  8. Manfred.pech

    Trimarans of the Everglades Challenge 2013

    Manfred.pech, Mar 15, 2013 ... 3 4 5
    Replies:
    66
    Views:
    17,234
    upchurchmr
    Feb 12, 2014
  9. rubyjeaan

    Building my MT 26 folding tri

    rubyjeaan, Jul 12, 2012 ... 3 4 5
    Replies:
    66
    Views:
    8,624
    Doug Lord
    Feb 12, 2013
  10. peterchech

    why has high buoyancy become so important?

    peterchech, May 6, 2011 ... 3 4 5
    Replies:
    66
    Views:
    16,255
    Gary Baigent
    May 24, 2011
  11. nickvonw

    Daggerboards vs keeled hulls

    nickvonw, Apr 11, 2011 ... 3 4 5
    Replies:
    66
    Views:
    14,403
    cavalier mk2
    Apr 28, 2011
  12. guzzis3

    Beam design for a demountable catamaran

    guzzis3, Dec 21, 2016 ... 3 4 5
    Replies:
    67
    Views:
    10,162
    fallguy
    Oct 30, 2017
  13. lowe210

    Pontoon Boat Conversion to Sailboat

    lowe210, Nov 15, 2008 ... 3 4 5
    Replies:
    67
    Views:
    37,893
    silverbear
    Aug 3, 2016
  14. Doug Lord

    A Cat on foils wins NZ Nationals/ Worlds Start Tuesday

    Doug Lord, Feb 8, 2014 ... 3 4 5
    Replies:
    67
    Views:
    7,657
    P Flados
    Apr 8, 2014
  15. Inquisitor

    In search of the prefect Proa

    Inquisitor, Jun 30, 2010 ... 3 4 5
    Replies:
    67
    Views:
    15,236
    Inquisitor
    Sep 4, 2010
  16. pir8ped

    Commercial fishing trimaran?

    pir8ped, Jun 7, 2008 ... 3 4 5
    Replies:
    67
    Views:
    21,492
    entropy
    Mar 22, 2009
  17. P Flados

    Small Tri Test Platform

    P Flados, Sep 30, 2014 ... 3 4 5
    Replies:
    68
    Views:
    12,005
    Samuel Langhorn
    Jan 2, 2021
  18. spidennis

    beach catamaran hull plans

    spidennis, Feb 8, 2012 ... 3 4 5
    Replies:
    68
    Views:
    47,568
    upchurchmr
    Apr 18, 2012
  19. Doug Lord

    Trimaran Turning Radius: Ama Position

    Doug Lord, Jun 27, 2012 ... 3 4 5
    Replies:
    69
    Views:
    10,525
    Whatsisname
    Jul 12, 2012
  20. EscapeArtist

    Can solar energy power a catamaran?

    EscapeArtist, Sep 4, 2016 ... 3 4 5
    Replies:
    70
    Views:
    14,559
    pacific green
    Oct 27, 2017
  21. Doug Lord

    Amaryllis

    Doug Lord, Mar 14, 2011 ... 3 4 5
    Replies:
    70
    Views:
    11,414
    Doug Lord
    Feb 25, 2016
  22. Dr. Peter

    Narrowing the beam

    Dr. Peter, Apr 1, 2010 ... 3 4 5
    Replies:
    70
    Views:
    17,197
    Dr. Peter
    May 5, 2011
  23. gpb

    K24T versus Buccaneer 24

    gpb, May 22, 2009 ... 3 4 5
    Replies:
    71
    Views:
    30,526
    Ilikeboats
    May 18, 2017
  24. JasonCatt

    Waller 1200 or Easy Sarah? Advice please.

    JasonCatt, Jan 9, 2017 ... 3 4 5
    Replies:
    71
    Views:
    12,162
    JasonCatt
    Apr 8, 2017
  25. cloudsrule9

    demountable catamaran for the caribbean and south pacific

    cloudsrule9, Jun 10, 2016 ... 3 4 5
    Replies:
    71
    Views:
    15,023
    brian eiland
    Aug 10, 2016
  26. rogerf

    Insurance - the elephant in the room.

    rogerf, Jan 31, 2013 ... 3 4 5
    Replies:
    71
    Views:
    13,745
    Alan.M
    Sep 5, 2015
  27. Becaris

    Bi-Plane rig on a 20m cat

    Becaris, Jun 28, 2010 ... 3 4 5
    Replies:
    71
    Views:
    22,471
    scape
    Mar 8, 2014
  28. Autodafe

    Pod cat square rigger cold weather cruiser project

    Autodafe, Feb 4, 2012 ... 3 4 5
    Replies:
    71
    Views:
    13,510
    CatBuilder
    May 16, 2012
  29. nickvonw

    Amateur wants to build Blue water multi hull cruiser

    nickvonw, Oct 13, 2009 ... 3 4 5
    Replies:
    71
    Views:
    16,954
    Alan M.
    Dec 6, 2009
  30. xarax

    Center nacelles and wave pounding in cats.

    xarax, Sep 1, 2007 ... 3 4 5
    Replies:
    72
    Views:
    33,262
    BobBill
    Sep 6, 2017
  31. Becaris

    Rotating Dagger boards on a cruising catamaran

    Becaris, Jun 11, 2011 ... 3 4 5
    Replies:
    72
    Views:
    17,236
    brian eiland
    Feb 4, 2017
  32. Manfred.pech

    New small Multi from Icarus

    Manfred.pech, May 31, 2016 ... 3 4 5
    Replies:
    72
    Views:
    16,370
    ricardoribeiro
    Oct 27, 2016
  33. Richard Woods

    The Pitchpoling Myth

    Richard Woods, Aug 18, 2008 ... 3 4 5
    Replies:
    72
    Views:
    15,585
    Richard Atkin
    Sep 5, 2008
  34. DennisRB

    Catamaran tender to replace rib?

    DennisRB, Jul 4, 2014 ... 3 4 5
    Replies:
    73
    Views:
    24,929
    Jolly Mon
    Jul 2, 2019
  35. Nautically Obsessed

    Please Sanity Check My Catamaran Design

    Nautically Obsessed, Mar 4, 2018 ... 3 4 5
    Replies:
    73
    Views:
    8,348
    gonzo
    Dec 6, 2018
  36. Corley

    Francis Joyon and the IDEC team depart in their attempt to claim Jules Verne Trophy

    Corley, Nov 21, 2016 ... 3 4 5
    Replies:
    74
    Views:
    6,697
    oldsailor7
    Feb 9, 2017
  37. Steve W

    outboard power on larger cruising cats

    Steve W, Aug 14, 2016 ... 4 5 6
    Replies:
    75
    Views:
    10,289
    Steve W
    Sep 14, 2016
  38. paxfish

    High Speed Rudder issue....

    paxfish, Oct 12, 2015 ... 4 5 6
    Replies:
    76
    Views:
    10,976
    oldsailor7
    Nov 6, 2015
  39. ImaginaryNumber

    Wide-hulled trimaran?

    ImaginaryNumber, Apr 21, 2011 ... 4 5 6
    Replies:
    76
    Views:
    33,360
    ImaginaryNumber
    Aug 22, 2012
  40. Skint For Life

    Micro Cruising Multihulls

    Skint For Life, Jul 31, 2011 ... 4 5 6
    Replies:
    77
    Views:
    61,144
    salglesser
    Jun 23, 2014
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