Multihulls

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

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  1. rael dobkins

    8 Years of Multihull design, result in this!

    rael dobkins, Oct 7, 2020
    Replies:
    0
    Views:
    1,338
    rael dobkins
    Oct 7, 2020
  2. fallguy

    Bow anchoring.

    fallguy, Oct 10, 2020 ... 2
    Replies:
    29
    Views:
    969
    Blueknarr
    Oct 11, 2020
  3. TDG

    Early Stage Structural Estimation

    TDG, Oct 13, 2020
    Replies:
    7
    Views:
    778
    TDG
    Oct 16, 2020
  4. skyl4rk

    Wisconsin Proa

    skyl4rk, Oct 17, 2020
    Replies:
    0
    Views:
    485
    skyl4rk
    Oct 17, 2020
  5. eiasu

    Which small trimaran for cruising/charter

    eiasu, Oct 21, 2020
    Replies:
    4
    Views:
    824
    eiasu
    Oct 31, 2020
  6. Le_skipper

    Catamaran hull cross-section

    Le_skipper, Oct 22, 2020
    Replies:
    6
    Views:
    1,288
    fallguy
    Oct 22, 2020
  7. JunkRat

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

    JunkRat, Oct 31, 2020
    Replies:
    10
    Views:
    1,309
    Dolfiman
    Apr 18, 2021
  8. Dolfiman

    Trophée Jules Vernes 2020

    Dolfiman, Nov 3, 2020
    Replies:
    2
    Views:
    646
    Dolfiman
    Nov 25, 2020
  9. Mark Wybierala

    Little fishing floaty thing

    Mark Wybierala, Nov 4, 2020
    Replies:
    11
    Views:
    922
    Mark Wybierala
    Nov 18, 2020
  10. Chotu

    Figuring out a Carbon Rig, Starting with a Known Aluminum Rig?

    Chotu, Nov 4, 2020
    Replies:
    3
    Views:
    602
    fastsailing
    Nov 16, 2020
  11. yanivmass

    Impressed current cathodic protection (ICCP) for aluminum multihull

    yanivmass, Nov 8, 2020
    Replies:
    3
    Views:
    592
    Ad Hoc
    Nov 12, 2020
  12. Catbuild

    Help Choosing Kit for Cat @ 43

    Catbuild, Nov 9, 2020 ... 2
    Replies:
    15
    Views:
    1,095
    Steve W
    Nov 28, 2020
  13. Cedric Oberman

    10ft Beach Catamaran - Too Small?

    Cedric Oberman, Nov 10, 2020
    Replies:
    10
    Views:
    1,006
    patzefran
    Nov 14, 2020
  14. Scuff

    Daggerboard wear blocks?

    Scuff, Nov 12, 2020
    Replies:
    3
    Views:
    423
    Scuff
    Nov 12, 2020
  15. lucdekeyser

    80 foot cargo harryproa

    lucdekeyser, Nov 15, 2020 ... 5 6 7
    Replies:
    98
    Views:
    7,968
    Dejay
    May 8, 2021
  16. lausl

    Resistance calculation of a "very" hard chine catamaran

    lausl, Nov 17, 2020
    Replies:
    14
    Views:
    1,049
    lausl
    Nov 20, 2020
  17. Jacobra

    24 ft Proa Design

    Jacobra, Nov 21, 2020
    Replies:
    4
    Views:
    1,012
    Jacobra
    Nov 24, 2020
  18. SPC

    Crossbar hydrofoil

    SPC, Nov 26, 2020
    Replies:
    4
    Views:
    490
    Heimfried
    Nov 26, 2020
  19. philSweet

    Sodebo and Gitana 17 set off on Jules Verne Record attempt

    philSweet, Nov 26, 2020 ... 2 3
    Replies:
    30
    Views:
    2,164
    Doug Lord
    Jan 29, 2021
  20. Owly

    Tacking Proa (for lack of a better term)

    Owly, Nov 27, 2020 ... 2 3
    Replies:
    31
    Views:
    2,571
    BobBill
    Mar 2, 2021
  21. Le_skipper

    Bob Harris trimaran

    Le_skipper, Nov 28, 2020
    Replies:
    0
    Views:
    644
    Le_skipper
    Nov 28, 2020
  22. rael dobkins

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

    rael dobkins, Nov 30, 2020
    Replies:
    0
    Views:
    436
    rael dobkins
    Nov 30, 2020
  23. magwas

    Cracks on FP Athena

    magwas, Dec 4, 2020
    Replies:
    5
    Views:
    515
    bajansailor
    Dec 6, 2020
  24. Infinitus

    Extendable hull

    Infinitus, Dec 7, 2020
    Replies:
    7
    Views:
    712
    gonzo
    Dec 19, 2020
  25. MichaelRoberts

    How to fill carbon dagger boards with foam

    MichaelRoberts, Dec 8, 2020
    Replies:
    13
    Views:
    906
    Eric ruttan
    Dec 19, 2020
  26. Gary Bernier

    52' CSK Catamaran

    Gary Bernier, Dec 14, 2020
    Replies:
    3
    Views:
    929
    shawn morgan
    Feb 10, 2021
  27. SmokeyBear

    "Small" design changes

    SmokeyBear, Dec 14, 2020
    Replies:
    13
    Views:
    793
    redreuben
    Dec 18, 2020
  28. SPC

    Gemini 105M and PDQ 36 -- Same Displacement?

    SPC, Dec 19, 2020
    Replies:
    6
    Views:
    366
    SPC
    Dec 19, 2020
  29. MichaelRoberts

    Carbon wing mast for Archimedes 60

    MichaelRoberts, Dec 19, 2020
    Replies:
    5
    Views:
    820
    MichaelRoberts
    Dec 30, 2020
  30. GUSRENTIT

    Need Cat advice

    GUSRENTIT, Dec 20, 2020 ... 2
    Replies:
    23
    Views:
    1,218
    GUSRENTIT
    Dec 22, 2020
  31. nwguy

    Home built foiling tri

    nwguy, Dec 21, 2020
    Replies:
    2
    Views:
    567
    nwguy
    Dec 21, 2020
  32. peterAustralia

    two engines on centerline, Filipino Banca

    peterAustralia, Dec 27, 2020
    Replies:
    8
    Views:
    670
    fallguy
    Dec 28, 2020
  33. MichaelRoberts

    How to connect catamaran rudders

    MichaelRoberts, Dec 29, 2020
    Replies:
    13
    Views:
    1,214
    tspeer
    Feb 6, 2021
  34. Beezer

    Coast guard certified Catamaran

    Beezer, Jan 2, 2021
    Replies:
    12
    Views:
    1,032
    fallguy
    Feb 25, 2021
  35. Swift

    Best motor system for a racing tri?

    Swift, Jan 2, 2021
    Replies:
    4
    Views:
    470
    Swift
    Jan 3, 2021
  36. redreuben

    Race Navigation

    redreuben, Jan 2, 2021
    Replies:
    1
    Views:
    298
    boatgm2
    Jan 3, 2021
  37. MichaelRoberts

    Gooseneck on wing mast

    MichaelRoberts, Jan 25, 2021 ... 2
    Replies:
    18
    Views:
    1,004
    catsketcher
    Jan 28, 2021
  38. Bigfork

    Mashup Trimaran (continued)

    Bigfork, Feb 17, 2021 ... 2 3 4
    Replies:
    47
    Views:
    2,379
    upchurchmr
    Mar 29, 2021
  39. JohnGB

    Modern hull shape vs ideal hydrofoil shape

    JohnGB, Feb 19, 2021 ... 2
    Replies:
    26
    Views:
    1,345
    Mr Efficiency
    Feb 21, 2021
  40. Burnside Style

    Eco 520 aft mast rig

    Burnside Style, Feb 20, 2021
    Replies:
    1
    Views:
    553
    jamez
    Feb 23, 2021
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