Multihulls

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

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  1. Iridian

    Cruising Catamaran Righting System

    Iridian, Aug 3, 2021
    Replies:
    4
    Views:
    4,446
    redreuben
    Aug 5, 2021
  2. Scuff

    Self tacking jib options

    Scuff, Jul 13, 2021 ... 2
    Replies:
    17
    Views:
    5,484
    Blueknarr
    Jul 31, 2021
  3. Burnside Style

    Beach Catamaran Beams from Aluminum to ply/composite?

    Burnside Style, Jul 16, 2021 ... 2 3
    Replies:
    44
    Views:
    7,177
    rxcomposite
    Jul 27, 2021
  4. jmarker1612

    Martingale Design

    jmarker1612, Jul 23, 2021
    Replies:
    3
    Views:
    3,744
    bajansailor
    Jul 24, 2021
  5. DennisRB

    Catamaran tender to replace rib?

    DennisRB, Jul 4, 2014 ... 3 4 5
    Replies:
    74
    Views:
    38,917
    EDWARD GARCIA
    Jul 21, 2021
  6. Moshe Chocron

    Recently purchased our first boat - 1984 45' Catamaran

    Moshe Chocron, Jul 17, 2021
    Replies:
    11
    Views:
    2,746
    fallguy
    Jul 17, 2021
  7. Gunnar Sommerlund

    SeaRider 360 (Need help with Rigging)

    Gunnar Sommerlund, May 24, 2020 ... 2
    Replies:
    20
    Views:
    5,115
    SolGato
    Jul 14, 2021
  8. Brian Alsum

    Multihull power requirements

    Brian Alsum, May 27, 2021 ... 2 3
    Replies:
    44
    Views:
    7,216
    Dragontri
    Jul 14, 2021
  9. bjn

    Why do multihulls have pointy bows?

    bjn, Jan 22, 2017 ... 6 7 8
    Replies:
    115
    Views:
    21,204
    Iridian
    Jul 11, 2021
  10. rob denney

    Replacing outboard motors with sail in the Marshall islands

    rob denney, Feb 22, 2020 ... 2
    Replies:
    21
    Views:
    4,798
    rob denney
    Jul 10, 2021
  11. Gary Bernier

    1981 52' CSK ketch rigged catamaran

    Gary Bernier, Jul 1, 2021
    Replies:
    2
    Views:
    2,215
    Gary Bernier
    Jul 2, 2021
  12. Boatguy30

    Catamaran Single Engine One Hull

    Boatguy30, Jul 20, 2012 ... 2 3
    Replies:
    44
    Views:
    22,068
    buzzman
    Jul 1, 2021
  13. Chris71

    Where do I start? Build a Trimaran from an Australian Surf Boat and Hobiecat

    Chris71, Mar 11, 2021 ... 2
    Replies:
    17
    Views:
    4,846
    buzzman
    Jun 30, 2021
  14. rturbett

    Shark Restoration

    rturbett, Jun 29, 2021
    Replies:
    4
    Views:
    1,544
    rturbett
    Jun 30, 2021
  15. perry2222

    Shape of a chainplate that might spread load better?

    perry2222, Jun 26, 2021
    Replies:
    13
    Views:
    2,051
    Blueknarr
    Jun 28, 2021
  16. patrik111

    rig fore aft position limits for catamaran

    patrik111, Jun 24, 2021
    Replies:
    12
    Views:
    1,890
    oldmulti
    Jun 25, 2021
  17. Nordschleife

    Building a “C-Class” Catamaran

    Nordschleife, May 23, 2021 ... 2 3
    Replies:
    34
    Views:
    3,947
    oldmulti
    Jun 25, 2021
  18. Scuff

    Kickup rudder questions

    Scuff, Jun 22, 2021
    Replies:
    9
    Views:
    1,769
    wet feet
    Jun 23, 2021
  19. Iridian

    Considering Homebuilding a ~50' Catamaran

    Iridian, Jun 10, 2021 ... 3 4 5
    Replies:
    60
    Views:
    8,489
    guzzis3
    Jun 22, 2021
  20. rael dobkins

    PROA LeePod DESIGN, the different styles....

    rael dobkins, Jun 22, 2021
    Replies:
    0
    Views:
    1,577
    rael dobkins
    Jun 22, 2021
  21. Coastal Ogre

    Multihull Bulkhead Refit Advice

    Coastal Ogre, Mar 1, 2021 ... 2 3
    Replies:
    33
    Views:
    4,547
    Coastal Ogre
    Jun 20, 2021
  22. santomas

    Mast corrosion - repair options?

    santomas, May 16, 2021
    Replies:
    11
    Views:
    2,520
    aussiebushman
    Jun 17, 2021
  23. Tom Makes Things

    Non-foiling trimarans under 20'

    Tom Makes Things, Sep 25, 2019 ... 4 5 6
    Replies:
    79
    Views:
    15,504
    kleppar
    Jun 10, 2021
  24. NewSalt

    Proa Shunting in Heavy Weather

    NewSalt, May 3, 2021 ... 2 3 4
    Replies:
    59
    Views:
    7,588
    rob denney
    Jun 7, 2021
  25. CatBuilder

    Single Dagger Board vs Double Boards

    CatBuilder, Apr 26, 2011 ... 5 6 7
    Replies:
    91
    Views:
    22,044
    DennisRB
    May 31, 2021
  26. Paul S Hamilton

    Hull flexing on 49' Norm Cross Tri

    Paul S Hamilton, May 26, 2021
    Replies:
    4
    Views:
    1,491
    Paul S Hamilton
    May 28, 2021
  27. Stefano Dilena

    Fiberglass hull construction cost

    Stefano Dilena, May 23, 2021 ... 2 3
    Replies:
    39
    Views:
    4,168
    ondarvr
    May 27, 2021
  28. Donnavan Wright

    Aluminium sailing catamaran build

    Donnavan Wright, Sep 9, 2019 ... 2
    Replies:
    26
    Views:
    11,249
    waterbear
    May 27, 2021
  29. Nordschleife

    AC50/F50 Hull Drawings

    Nordschleife, May 25, 2021
    Replies:
    1
    Views:
    1,462
    oldmulti
    May 25, 2021
  30. Doug Lord

    Banque Populaire XI

    Doug Lord, Dec 20, 2019
    Replies:
    6
    Views:
    2,007
    DogCavalry
    May 20, 2021
  31. Cameron Bartlett

    Farrier TrailerTri 720 Centerboard lamination

    Cameron Bartlett, May 16, 2021
    Replies:
    10
    Views:
    1,543
    Russell Brown
    May 17, 2021
  32. SolGato

    SolGato’s Lateen Crab Claw Rig

    SolGato, May 12, 2021 ... 2
    Replies:
    15
    Views:
    2,115
    SolGato
    May 14, 2021
  33. valery gaulin

    Waller Coral Cove 31

    valery gaulin, Apr 23, 2017
    Replies:
    5
    Views:
    3,115
    guzzis3
    May 11, 2021
  34. seandepagnier

    making a daggerboard longer

    seandepagnier, May 7, 2021
    Replies:
    8
    Views:
    1,152
    catsketcher
    May 11, 2021
  35. Doug Lord

    Kite Foiler

    Doug Lord, Apr 22, 2021
    Replies:
    11
    Views:
    1,463
    Skyak
    Apr 26, 2021
  36. Doug Lord

    New Trimaran Foilers

    Doug Lord, Jun 8, 2016 ... 17 18 19
    Replies:
    276
    Views:
    48,126
    Vantage475T
    Apr 26, 2021
  37. Skyak

    Sail GP live on YT

    Skyak, Apr 25, 2021
    Replies:
    1
    Views:
    824
    Skyak
    Apr 25, 2021
  38. Charlyipad

    best way to stiffen a bridgedeck?

    Charlyipad, Apr 22, 2021
    Replies:
    11
    Views:
    1,328
    Charlyipad
    Apr 25, 2021
  39. dustman

    How big would a catamaran have to be...?

    dustman, Apr 23, 2021
    Replies:
    12
    Views:
    1,904
    comfisherman
    Apr 25, 2021
  40. Muzammal

    Building 44' wooden tri with traditional planking

    Muzammal, Apr 19, 2021 ... 2
    Replies:
    20
    Views:
    2,724
    Dejay
    Apr 24, 2021
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