Multihulls

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

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  1. oldmulti

    Multihull Structure Thoughts

    oldmulti, May 27, 2019 ... 102 103 104
    Replies:
    1,552
    Views:
    163,903
    ThomD
    Jan 20, 2021 at 11:53 PM
  2. philSweet

    Sodebo and Gitana 17 set off on Jules Verne Record attempt

    philSweet, Nov 26, 2020 ... 2
    Replies:
    26
    Views:
    1,291
    Dolfiman
    Jan 19, 2021 at 6:06 PM
  3. guzzis3

    Modern hirondelle

    guzzis3, Nov 18, 2016 ... 8 9 10
    Replies:
    146
    Views:
    29,159
    redreuben
    Jan 19, 2021 at 4:59 AM
  4. Corley

    Tremolino tales

    Corley, Aug 24, 2017 ... 2 3
    Replies:
    34
    Views:
    5,845
    Russell Brown
    Jan 18, 2021 at 9:34 PM
  5. Beezer

    Coast guard certified Catamaran

    Beezer, Jan 2, 2021
    Replies:
    9
    Views:
    319
    Corley
    Jan 17, 2021 at 10:49 PM
  6. oldsailor7

    Buccaneer 24 Builders Forum

    oldsailor7, Jul 22, 2009 ... 190 191 192
    Replies:
    2,870
    Views:
    541,731
    bruceb
    Jan 12, 2021
  7. Doug Lord

    Small trimarans under 20'

    Doug Lord, Jun 24, 2012 ... 74 75 76
    Replies:
    1,128
    Views:
    253,010
    Tiny Turnip
    Jan 9, 2021
  8. Doug Lord

    New Trimaran Foilers

    Doug Lord, Jun 8, 2016 ... 17 18 19
    Replies:
    274
    Views:
    35,013
    Vantage475T
    Jan 6, 2021
  9. Lucainbarca

    Rival 21 from batavento sailmakers brazil

    Lucainbarca, Apr 20, 2019 ... 2
    Replies:
    21
    Views:
    1,973
    Lucainbarca
    Jan 5, 2021
  10. Boatguy30

    Catamaran Single Engine One Hull

    Boatguy30, Jul 20, 2012 ... 2 3
    Replies:
    43
    Views:
    15,954
    Stefan Gessinger
    Jan 3, 2021
  11. onekiwi

    Restoring 1967 B-LION catamaran

    onekiwi, Feb 1, 2015 ... 2
    Replies:
    29
    Views:
    4,853
    Gopherit10
    Jan 3, 2021
  12. redreuben

    Race Navigation

    redreuben, Jan 2, 2021
    Replies:
    1
    Views:
    134
    boatgm2
    Jan 3, 2021
  13. Swift

    Best motor system for a racing tri?

    Swift, Jan 2, 2021
    Replies:
    4
    Views:
    213
    Swift
    Jan 3, 2021
  14. MichaelRoberts

    How to connect catamaran rudders

    MichaelRoberts, Dec 29, 2020
    Replies:
    11
    Views:
    481
    Russell Brown
    Jan 2, 2021
  15. P Flados

    Small Tri Test Platform

    P Flados, Sep 30, 2014 ... 3 4 5
    Replies:
    68
    Views:
    11,259
    Samuel Langhorn
    Jan 2, 2021
  16. Doug Lord

    High Performance MPX Foil/Self-righting Trimaran-The Test Model

    Doug Lord, Dec 28, 2010 ... 197 198 199
    Replies:
    2,976
    Views:
    633,122
    Doug Lord
    Dec 30, 2020
  17. MichaelRoberts

    Carbon wing mast for Archimedes 60

    MichaelRoberts, Dec 19, 2020
    Replies:
    5
    Views:
    478
    MichaelRoberts
    Dec 30, 2020
  18. peterAustralia

    two engines on centerline, Filipino Banca

    peterAustralia, Dec 27, 2020
    Replies:
    8
    Views:
    321
    fallguy
    Dec 28, 2020
  19. Matthias S.

    Newbie question: would this trimaran folding system work? (parallel hinge)

    Matthias S., Sep 25, 2020
    Replies:
    11
    Views:
    807
    kleppar
    Dec 28, 2020
  20. trip the light fandango

    building new amas/floats from recycled beachcat hulls

    trip the light fandango, Apr 23, 2019 ... 5 6 7
    Replies:
    94
    Views:
    7,239
    trip the light fandango
    Dec 26, 2020
  21. lucdekeyser

    80 foot cargo harryproa

    lucdekeyser, Nov 15, 2020 ... 4 5 6
    Replies:
    89
    Views:
    4,741
    rob denney
    Dec 23, 2020
  22. GUSRENTIT

    Need Cat advice

    GUSRENTIT, Dec 20, 2020 ... 2
    Replies:
    23
    Views:
    731
    GUSRENTIT
    Dec 22, 2020
  23. nwguy

    Home built foiling tri

    nwguy, Dec 21, 2020
    Replies:
    2
    Views:
    269
    nwguy
    Dec 21, 2020
  24. Owly

    Tacking Proa (for lack of a better term)

    Owly, Nov 27, 2020 ... 2
    Replies:
    19
    Views:
    985
    BobBill
    Dec 20, 2020
  25. SPC

    Gemini 105M and PDQ 36 -- Same Displacement?

    SPC, Dec 19, 2020
    Replies:
    6
    Views:
    193
    SPC
    Dec 19, 2020
  26. MichaelRoberts

    How to fill carbon dagger boards with foam

    MichaelRoberts, Dec 8, 2020
    Replies:
    13
    Views:
    576
    Eric ruttan
    Dec 19, 2020
  27. Infinitus

    Extendable hull

    Infinitus, Dec 7, 2020
    Replies:
    7
    Views:
    416
    gonzo
    Dec 19, 2020
  28. SmokeyBear

    "Small" design changes

    SmokeyBear, Dec 14, 2020
    Replies:
    13
    Views:
    480
    redreuben
    Dec 18, 2020
  29. Gary Baigent

    Law abiding Kiwis.

    Gary Baigent, Mar 31, 2020 ... 2 3 4
    Replies:
    56
    Views:
    4,375
    fallguy
    Dec 17, 2020
  30. JCaprani

    Ontong Java II by Hans Klaar

    JCaprani, May 3, 2012 ... 2 3
    Replies:
    40
    Views:
    14,627
    peterAustralia
    Dec 17, 2020
  31. Gary Bernier

    52' CSK Catamaran

    Gary Bernier, Dec 14, 2020
    Replies:
    2
    Views:
    282
    Gary Bernier
    Dec 14, 2020
  32. FantasyTrimaran

    A few trimaran design questions

    FantasyTrimaran, Dec 20, 2019
    Replies:
    8
    Views:
    1,513
    W17 designer
    Dec 14, 2020
  33. tom ybarrola

    24' Buccaneer Trimaran

    tom ybarrola, Apr 23, 2012 ... 2
    Replies:
    22
    Views:
    5,385
    bruceb
    Dec 8, 2020
  34. oldsailor7

    Hedley Nicol Trimaran Plans

    oldsailor7, Mar 12, 2010 ... 30 31 32
    Replies:
    476
    Views:
    115,828
    cavalier mk2
    Dec 8, 2020
  35. magwas

    Cracks on FP Athena

    magwas, Dec 4, 2020
    Replies:
    5
    Views:
    292
    bajansailor
    Dec 6, 2020
  36. SV Pororoca

    How a proa works / I'm making a 45ft one in Aluminum

    SV Pororoca, Jan 8, 2020 ... 2
    Replies:
    16
    Views:
    1,803
    gonzo
    Dec 6, 2020
  37. BobBill

    Shear-web ?

    BobBill, Feb 28, 2020 ... 2 3
    Replies:
    34
    Views:
    1,380
    BobBill
    Nov 30, 2020
  38. rael dobkins

    Default New Workshop, new Proa, new thoughts, Balkan Shipyards

    rael dobkins, Nov 30, 2020
    Replies:
    0
    Views:
    197
    rael dobkins
    Nov 30, 2020
  39. Le_skipper

    Bob Harris trimaran

    Le_skipper, Nov 28, 2020
    Replies:
    0
    Views:
    345
    Le_skipper
    Nov 28, 2020
  40. Catbuild

    Help Choosing Kit for Cat @ 43

    Catbuild, Nov 9, 2020 ... 2
    Replies:
    15
    Views:
    711
    Steve W
    Nov 28, 2020
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