Multihulls

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

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  1. Inquisitor

    Proa Questions: Atlantic vs Pacific

    Inquisitor, Jun 22, 2010 ... 12 13 14
    Replies:
    201
    Views:
    66,453
    Clarkey
    Sep 5, 2010
  2. MikeJohns

    Multihull Capsize Prevention <split>

    MikeJohns, Jun 23, 2011 ... 18 19 20
    Replies:
    294
    Views:
    63,609
    Angélique
    Jul 23, 2017
  3. Doug Lord

    GC 32 super cat

    Doug Lord, Oct 15, 2012 ... 15 16 17
    Replies:
    240
    Views:
    62,298
    Doug Lord
    May 23, 2019
  4. nickvonw

    Round Bilge vs hard chine

    nickvonw, Apr 11, 2011 ... 6 7 8
    Replies:
    119
    Views:
    61,977
    MikeJohns
    Jan 20, 2015
  5. bluebox3000

    Build time 40ft catamaran

    bluebox3000, Jan 8, 2014 ... 10 11 12
    Replies:
    166
    Views:
    61,765
    oldsailor7
    Dec 7, 2014
  6. spidennis

    beach catamaran hull plans

    spidennis, Feb 8, 2012 ... 3 4 5
    Replies:
    68
    Views:
    61,009
    upchurchmr
    Apr 18, 2012
  7. SAILFASTtigre

    design of a fast 27 catamaran

    SAILFASTtigre, Apr 18, 2005 ... 2
    Replies:
    26
    Views:
    60,584
    Pilgrim
    Jun 6, 2006
  8. eiasu

    Trimaran with accomodation in the amas

    eiasu, Nov 23, 2012 ... 15 16 17
    Replies:
    244
    Views:
    60,533
    cavalier mk2
    Jul 10, 2018
  9. Doug Lord

    Flying Phantom F 18 Catamaran

    Doug Lord, Jul 13, 2012 ... 6 7 8
    Replies:
    111
    Views:
    59,804
    Doug Lord
    Jun 4, 2019
  10. rallard

    carbon fiber wing mast for my cat

    rallard, Dec 28, 2008 ... 5 6 7
    Replies:
    95
    Views:
    57,949
    rallard
    Nov 15, 2011
  11. Brorsan

    Scarab 16

    Brorsan, Feb 6, 2011 ... 8 9 10
    Replies:
    140
    Views:
    57,378
    Nedelin Karnolski
    Apr 1, 2020
  12. CatBuilder

    Wave Piercing Bows

    CatBuilder, Apr 15, 2012 ... 12 13 14
    Replies:
    196
    Views:
    56,936
    Corley
    Feb 5, 2015
  13. groper

    Open source 12-15m high performance/semi-cruising catamaran design

    groper, May 10, 2017 ... 20 21 22
    Replies:
    319
    Views:
    56,743
    groper
    Sep 15, 2017
  14. Corley

    Lock Crowther 1962 Kraken 25 trimaran build and rebuild log

    Corley, Jun 7, 2011 ... 12 13 14
    Replies:
    203
    Views:
    55,129
    revintage
    Feb 1, 2022
  15. Skip JayR

    The Future of Formula 40 Trimarans

    Skip JayR, Sep 8, 2015 ... 8 9 10
    Replies:
    146
    Views:
    54,760
    powerabout
    Oct 8, 2015
  16. Bruce Woods

    cruising catamaran average speeds

    Bruce Woods, Nov 27, 2007 ... 2
    Replies:
    15
    Views:
    54,664
    souljour2000
    Jun 11, 2012
  17. brian eiland

    Canting Keel Monos vs Multihulls

    brian eiland, Aug 31, 2006 ... 15 16 17
    Replies:
    252
    Views:
    54,563
    CT 249
    Nov 29, 2006
  18. terhohalme

    How to dimension a sailing catamaran?

    terhohalme, Apr 27, 2008 ... 4 5 6
    Replies:
    83
    Views:
    54,450
    Andre Holanda
    Aug 18, 2021
  19. P Flados

    Sailrocket 2 set to launch

    P Flados, Feb 19, 2011 ... 15 16 17
    Replies:
    242
    Views:
    54,400
    Doug Lord
    May 17, 2015
  20. Corley

    Yvan Bougnon's circumnavigation in a beach cat project

    Corley, Jul 23, 2013 ... 16 17 18
    Replies:
    259
    Views:
    53,882
    Corley
    Aug 4, 2017
  21. Doug Lord

    Gunboat G4 with UptiP Foils

    Doug Lord, May 12, 2014 ... 13 14 15
    Replies:
    215
    Views:
    53,823
    OzFred
    Oct 22, 2020
  22. guzzis3

    a better tiki 21

    guzzis3, May 7, 2019 ... 11 12 13
    Replies:
    189
    Views:
    53,737
    Mark Waters
    Feb 11, 2020
  23. Doug Lord

    New Trimaran Foilers

    Doug Lord, Jun 8, 2016 ... 17 18 19
    Replies:
    276
    Views:
    53,091
    Vantage475T
    Apr 26, 2021
  24. kimosadler

    Aluminum Strongall Sailing Catamaran Plans?

    kimosadler, May 4, 2009 ... 2
    Replies:
    19
    Views:
    51,662
    Rico chico
    Mar 1, 2024
  25. pulsar

    small catamaran plans needful

    pulsar, Aug 9, 2006 ... 2
    Replies:
    22
    Views:
    51,572
    Ikarus342000
    Mar 28, 2007
  26. frank smith

    dory catamaran hull

    frank smith, Feb 2, 2010 ... 6 7 8
    Replies:
    111
    Views:
    51,525
    Motivator-1
    Jun 1, 2010
  27. guzzis3

    Modern hirondelle

    guzzis3, Nov 18, 2016 ... 8 9 10
    Replies:
    147
    Views:
    50,812
    guzzis3
    Jan 26, 2021
  28. basildog

    Assymetric Cat Hulls

    basildog, Apr 8, 2009 ... 4 5 6
    Replies:
    79
    Views:
    50,345
    Ikarus342000
    Jun 10, 2015
  29. Doug Lord

    Hydroptere-61 knots(70.15mph) Peak

    Doug Lord, Apr 1, 2011 ... 10 11 12
    Replies:
    172
    Views:
    49,950
    rcnesneg
    Apr 17, 2016
  30. Brorsan

    Post your design ideas

    Brorsan, Mar 11, 2011 ... 8 9 10
    Replies:
    136
    Views:
    48,432
    rob denney
    Apr 8, 2020
  31. jakobo

    tiny cruising catamaran

    jakobo, Jan 2, 2012 ... 2 3
    Replies:
    40
    Views:
    47,783
    rapscallion
    Jan 3, 2012
  32. Caldera Boats

    Hobie Bravo

    Caldera Boats, Jun 1, 2006 ... 2
    Replies:
    20
    Views:
    47,748
    CT249
    Jul 17, 2018
  33. DennisRB

    Reverse bows on cruising cats pros and cons

    DennisRB, Mar 1, 2013 ... 11 12 13
    Replies:
    180
    Views:
    47,283
    Alik
    Apr 7, 2013
  34. DSmith

    Wing sail for an A Class Cat

    DSmith, Dec 1, 2004 ... 2 3
    Replies:
    39
    Views:
    46,306
    petereng
    Jan 9, 2013
  35. Boatguy30

    Catamaran dinghy 10-11' long

    Boatguy30, May 9, 2015 ... 7 8 9
    Replies:
    133
    Views:
    45,974
    Goliat
    Mar 8, 2017
  36. lowe210

    Pontoon Boat Conversion to Sailboat

    lowe210, Nov 15, 2008 ... 3 4 5
    Replies:
    67
    Views:
    45,011
    silverbear
    Aug 3, 2016
  37. Tcubed

    Proa design

    Tcubed, Sep 13, 2008 ... 6 7 8
    Replies:
    112
    Views:
    44,781
    rob denney
    Apr 15, 2009
  38. paradoxbox

    An extremely cheap, easy to build proa, cat or tri for Okinawa island hopping?

    paradoxbox, Oct 2, 2011 ... 2 3 4
    Replies:
    56
    Views:
    44,740
    Okitom
    Feb 7, 2017
  39. Doug Lord

    Little America's Cup 2010-C CLass-the real one..

    Doug Lord, Apr 12, 2010 ... 8 9 10
    Replies:
    135
    Views:
    44,379
    Doug Lord
    Sep 28, 2010
  40. DennisRB

    Catamaran tender to replace rib?

    DennisRB, Jul 4, 2014 ... 3 4 5
    Replies:
    74
    Views:
    44,331
    EDWARD GARCIA
    Jul 21, 2021
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