Multihulls

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

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  1. patrik111

    rig fore aft position limits for catamaran

    patrik111, Jun 24, 2021
    Replies:
    12
    Views:
    2,101
    oldmulti
    Jun 25, 2021
  2. Nordschleife

    Building a “C-Class” Catamaran

    Nordschleife, May 23, 2021 ... 2 3
    Replies:
    34
    Views:
    4,336
    oldmulti
    Jun 25, 2021
  3. Scuff

    Kickup rudder questions

    Scuff, Jun 22, 2021
    Replies:
    9
    Views:
    1,935
    wet feet
    Jun 23, 2021
  4. Iridian

    Considering Homebuilding a ~50' Catamaran

    Iridian, Jun 10, 2021 ... 3 4 5
    Replies:
    60
    Views:
    9,384
    guzzis3
    Jun 22, 2021
  5. rael dobkins

    PROA LeePod DESIGN, the different styles....

    rael dobkins, Jun 22, 2021
    Replies:
    0
    Views:
    1,691
    rael dobkins
    Jun 22, 2021
  6. Coastal Ogre

    Multihull Bulkhead Refit Advice

    Coastal Ogre, Mar 1, 2021 ... 2 3
    Replies:
    33
    Views:
    5,069
    Coastal Ogre
    Jun 20, 2021
  7. santomas

    Mast corrosion - repair options?

    santomas, May 16, 2021
    Replies:
    11
    Views:
    2,885
    aussiebushman
    Jun 17, 2021
  8. Tom Makes Things

    Non-foiling trimarans under 20'

    Tom Makes Things, Sep 25, 2019 ... 4 5 6
    Replies:
    79
    Views:
    17,241
    kleppar
    Jun 10, 2021
  9. NewSalt

    Proa Shunting in Heavy Weather

    NewSalt, May 3, 2021 ... 2 3 4
    Replies:
    59
    Views:
    8,359
    rob denney
    Jun 7, 2021
  10. CatBuilder

    Single Dagger Board vs Double Boards

    CatBuilder, Apr 26, 2011 ... 5 6 7
    Replies:
    91
    Views:
    22,670
    DennisRB
    May 31, 2021
  11. Paul S Hamilton

    Hull flexing on 49' Norm Cross Tri

    Paul S Hamilton, May 26, 2021
    Replies:
    4
    Views:
    1,592
    Paul S Hamilton
    May 28, 2021
  12. Stefano Dilena

    Fiberglass hull construction cost

    Stefano Dilena, May 23, 2021 ... 2 3
    Replies:
    39
    Views:
    5,095
    ondarvr
    May 27, 2021
  13. Donnavan Wright

    Aluminium sailing catamaran build

    Donnavan Wright, Sep 9, 2019 ... 2
    Replies:
    26
    Views:
    12,309
    waterbear
    May 27, 2021
  14. Nordschleife

    AC50/F50 Hull Drawings

    Nordschleife, May 25, 2021
    Replies:
    1
    Views:
    1,700
    oldmulti
    May 25, 2021
  15. Doug Lord

    Banque Populaire XI

    Doug Lord, Dec 20, 2019
    Replies:
    6
    Views:
    2,123
    DogCavalry
    May 20, 2021
  16. Cameron Bartlett

    Farrier TrailerTri 720 Centerboard lamination

    Cameron Bartlett, May 16, 2021
    Replies:
    10
    Views:
    1,735
    Russell Brown
    May 17, 2021
  17. SolGato

    SolGato’s Lateen Crab Claw Rig

    SolGato, May 12, 2021 ... 2
    Replies:
    15
    Views:
    2,471
    SolGato
    May 14, 2021
  18. valery gaulin

    Waller Coral Cove 31

    valery gaulin, Apr 23, 2017
    Replies:
    5
    Views:
    3,245
    guzzis3
    May 11, 2021
  19. seandepagnier

    making a daggerboard longer

    seandepagnier, May 7, 2021
    Replies:
    8
    Views:
    1,275
    catsketcher
    May 11, 2021
  20. Doug Lord

    Kite Foiler

    Doug Lord, Apr 22, 2021
    Replies:
    11
    Views:
    1,606
    Skyak
    Apr 26, 2021
  21. Doug Lord

    New Trimaran Foilers

    Doug Lord, Jun 8, 2016 ... 17 18 19
    Replies:
    276
    Views:
    50,058
    Vantage475T
    Apr 26, 2021
  22. Skyak

    Sail GP live on YT

    Skyak, Apr 25, 2021
    Replies:
    1
    Views:
    894
    Skyak
    Apr 25, 2021
  23. Charlyipad

    best way to stiffen a bridgedeck?

    Charlyipad, Apr 22, 2021
    Replies:
    11
    Views:
    1,531
    Charlyipad
    Apr 25, 2021
  24. dustman

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

    dustman, Apr 23, 2021
    Replies:
    12
    Views:
    2,029
    comfisherman
    Apr 25, 2021
  25. Muzammal

    Building 44' wooden tri with traditional planking

    Muzammal, Apr 19, 2021 ... 2
    Replies:
    20
    Views:
    3,053
    Dejay
    Apr 24, 2021
  26. Gary Curtis

    Query carbon rudder box layup and repair

    Gary Curtis, Apr 5, 2021
    Replies:
    2
    Views:
    1,194
    Ganzi
    Apr 24, 2021
  27. Owly

    Design Spiral into Madness

    Owly, Apr 15, 2021 ... 2
    Replies:
    20
    Views:
    2,702
    guzzis3
    Apr 18, 2021
  28. JunkRat

    What’s formula for estimating catamaran speed? Speed from length better than from design?

    JunkRat, Oct 31, 2020
    Replies:
    10
    Views:
    3,571
    Dolfiman
    Apr 18, 2021
  29. JunkRat

    Seeking Tradewind route Statistical Data

    JunkRat, Apr 16, 2021
    Replies:
    7
    Views:
    1,148
    CocoonCruisers
    Apr 17, 2021
  30. Lachie

    Hard v round bilge and leeway

    Lachie, Mar 23, 2021
    Replies:
    9
    Views:
    1,967
    guzzis3
    Apr 14, 2021
  31. David L. Dodd II

    Car Toppable Trimaran Pocket Cruiser

    David L. Dodd II, Mar 15, 2021 ... 2
    Replies:
    21
    Views:
    4,367
    David L. Dodd II
    Apr 6, 2021
  32. peterchech

    CSC 30 Catamaran- the coastal passage

    peterchech, Nov 29, 2011 ... 27 28 29
    Replies:
    425
    Views:
    128,251
    Dorydude
    Apr 6, 2021
  33. SmallSpaceBigImagination

    Building hull in cross sections

    SmallSpaceBigImagination, Mar 22, 2021 ... 2 3 4
    Replies:
    55
    Views:
    6,829
    Mr Efficiency
    Mar 30, 2021
  34. guzzis3

    Seasickness

    guzzis3, Mar 18, 2021
    Replies:
    7
    Views:
    1,341
    Mr Efficiency
    Mar 19, 2021
  35. CerealPirate

    HDPE for bottom hull skin or line-x

    CerealPirate, Feb 26, 2021
    Replies:
    13
    Views:
    3,659
    SlickMick
    Mar 17, 2021
  36. perry2222

    Fitting a tiller to a cat with tie bar steering

    perry2222, Mar 9, 2021
    Replies:
    4
    Views:
    1,418
    jamez
    Mar 12, 2021
  37. perry2222

    Daggerboard Dreaming

    perry2222, Mar 9, 2021
    Replies:
    6
    Views:
    1,365
    perry2222
    Mar 11, 2021
  38. TI TI

    Wharram Pahi 31 to give away

    TI TI, Mar 19, 2019
    Replies:
    4
    Views:
    4,370
    Pierre Roger
    Mar 11, 2021
  39. jagercek

    Homemade Weta Trimaran

    jagercek, Mar 7, 2021
    Replies:
    10
    Views:
    3,047
    redreuben
    Mar 8, 2021
  40. BobBill

    Hook and Loop Sail

    BobBill, Mar 3, 2021
    Replies:
    4
    Views:
    1,228
    Olav
    Mar 4, 2021
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