Multihulls

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

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  1. Owly

    Hobie Hulls (buyer's remorse)

    Owly, Feb 22, 2020 ... 2 3 4
    Replies:
    49
    Views:
    12,564
    Owly
    Mar 27, 2020
  2. brendan gardam

    reduce catamaran beam

    brendan gardam, Feb 11, 2020 ... 2 3
    Replies:
    32
    Views:
    5,695
    Mr Efficiency
    Sep 6, 2020
  3. revintage

    Early UK foiling cats and tris, Mayfly and Force8

    revintage, Feb 6, 2020
    Replies:
    3
    Views:
    2,151
    Richard Woods
    Feb 8, 2020
  4. Bruce Woods

    Rob Dennys' unstayed masts

    Bruce Woods, Feb 4, 2020 ... 2
    Replies:
    15
    Views:
    5,421
    rob denney
    Apr 23, 2020
  5. rael dobkins

    Proa Design, Why Make a Model? HAVAYA 30

    rael dobkins, Feb 2, 2020
    Replies:
    0
    Views:
    1,604
    rael dobkins
    Feb 2, 2020
  6. Onefish

    Aluminum tube sectioned mast

    Onefish, Jan 29, 2020 ... 2
    Replies:
    22
    Views:
    3,930
    Onefish
    Jan 31, 2020
  7. useragentseven

    Experimental Catamaran Hull Rocker

    useragentseven, Jan 27, 2020
    Replies:
    8
    Views:
    3,308
    useragentseven
    Feb 1, 2020
  8. SV Pororoca

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

    SV Pororoca, Jan 8, 2020 ... 2
    Replies:
    29
    Views:
    7,771
    Ad Hoc
    Oct 19, 2023
  9. Nordschleife

    A-Class Catamaran Plans?

    Nordschleife, Jan 5, 2020 ... 2
    Replies:
    19
    Views:
    6,263
    Manfred.pech
    May 18, 2020
  10. Nordschleife

    Foiling Cat Project

    Nordschleife, Jan 3, 2020
    Replies:
    2
    Views:
    1,714
    Nordschleife
    Jan 3, 2020
  11. Time2Tri

    Outboard Motor mounts other than transom

    Time2Tri, Jan 2, 2020
    Replies:
    13
    Views:
    3,239
    Time2Tri
    Jan 7, 2020
  12. Burger

    Easy Catamarans: Snells retired?

    Burger, Dec 21, 2019
    Replies:
    4
    Views:
    7,266
    Burger
    Feb 6, 2020
  13. FantasyTrimaran

    A few trimaran design questions

    FantasyTrimaran, Dec 20, 2019
    Replies:
    8
    Views:
    4,027
    W17 designer
    Dec 14, 2020
  14. Doug Lord

    Banque Populaire XI

    Doug Lord, Dec 20, 2019
    Replies:
    6
    Views:
    2,330
    DogCavalry
    May 20, 2021
  15. Iain Gordon

    What make/type is this catamaran

    Iain Gordon, Dec 18, 2019
    Replies:
    2
    Views:
    1,500
    Iain Gordon
    Dec 18, 2019
  16. ProBoat

    Two current articles about catamarans in Professional BoatBuilder magazine

    ProBoat, Dec 9, 2019
    Replies:
    0
    Views:
    1,870
    ProBoat
    Dec 9, 2019
  17. zombat

    KLIS trimaran: owners wanted

    zombat, Dec 5, 2019 ... 2 3
    Replies:
    42
    Views:
    14,256
    jamez
    Mar 2, 2022
  18. gmoulder

    Foam catamaran kayak

    gmoulder, Dec 2, 2019
    Replies:
    12
    Views:
    4,707
    clmanges
    Jan 6, 2020
  19. revintage

    Has anyone seen this foiling cat before?

    revintage, Nov 30, 2019
    Replies:
    3
    Views:
    1,948
    revintage
    Dec 3, 2019
  20. barrymac

    carbon spar cross beam augmentation

    barrymac, Nov 28, 2019
    Replies:
    13
    Views:
    2,619
    barrymac
    Dec 4, 2019
  21. Skullduggerydave

    Kangaroo Island 26 foot trimaran identification

    Skullduggerydave, Nov 26, 2019
    Replies:
    11
    Views:
    2,562
    Skullduggerydave
    Dec 5, 2019
  22. isvara

    a radical form of propulsion

    isvara, Nov 25, 2019 ... 2
    Replies:
    29
    Views:
    3,968
    cavalier mk2
    Jan 17, 2020
  23. Freelance 85

    50' Norman Cross, sails?

    Freelance 85, Nov 11, 2019
    Replies:
    1
    Views:
    1,681
    cavalier mk2
    Nov 14, 2019
  24. patrik111

    Rapido 40, 50 Folding system

    patrik111, Nov 8, 2019
    Replies:
    8
    Views:
    3,745
    John Perry
    Dec 18, 2019
  25. Dolfiman

    Brest Atlantiques 2019 - Ultims

    Dolfiman, Oct 31, 2019 ... 3 4 5
    Replies:
    63
    Views:
    5,754
    Dronerz
    Jun 21, 2020
  26. nwguy

    Aka attachments to Nacra 5.2 hulls as amas

    nwguy, Oct 28, 2019 ... 2 3 4
    Replies:
    53
    Views:
    7,680
    upchurchmr
    Apr 14, 2020
  27. Corley

    Transat Jacques Vabre tracker

    Corley, Oct 28, 2019
    Replies:
    11
    Views:
    1,558
    Corley
    Nov 9, 2019
  28. Doug Lord

    Spectacular Capsize

    Doug Lord, Oct 26, 2019
    Replies:
    5
    Views:
    1,623
    upchurchmr
    Nov 6, 2019
  29. Onefish

    Wharram Hitia 17 questions

    Onefish, Oct 24, 2019
    Replies:
    13
    Views:
    5,158
    Onefish
    Oct 28, 2019
  30. rael dobkins

    Micro cruising to the limit!!!

    rael dobkins, Oct 24, 2019
    Replies:
    7
    Views:
    3,160
    fallguy
    Oct 31, 2019
  31. revintage

    Beam joint overlap?

    revintage, Oct 21, 2019
    Replies:
    10
    Views:
    2,404
    revintage
    Oct 24, 2019
  32. Lubomir

    I need help to determine a proa

    Lubomir, Oct 18, 2019
    Replies:
    2
    Views:
    1,534
    Dejay
    Oct 19, 2019
  33. cauthornl

    Home Made Fauxbie Island

    cauthornl, Oct 11, 2019
    Replies:
    2
    Views:
    1,171
    cauthornl
    Oct 11, 2019
  34. trip the light fandango

    Extra floatation to avoid full capsize

    trip the light fandango, Oct 9, 2019 ... 2 3 4
    Replies:
    57
    Views:
    7,631
    Doug Halsey
    Apr 14, 2020
  35. Howaya

    Chesapeake Multihull Association's Boat Show Reception

    Howaya, Oct 9, 2019
    Replies:
    0
    Views:
    1,517
    Howaya
    Oct 9, 2019
  36. Tom Makes Things

    Metz TriRaid 560s vs Smoot Slingshot 19

    Tom Makes Things, Oct 4, 2019
    Replies:
    1
    Views:
    2,781
    patzefran
    Oct 5, 2019
  37. Tom Makes Things

    Displacement at DWL vs actual capacity

    Tom Makes Things, Oct 2, 2019
    Replies:
    10
    Views:
    2,876
    Tom Makes Things
    Oct 3, 2019
  38. Doug Lord

    Hydroptere returns!

    Doug Lord, Oct 1, 2019
    Replies:
    1
    Views:
    1,402
    revintage
    Oct 1, 2019
  39. jon haig

    condor 40' trimaran size compared to a multi 50'

    jon haig, Sep 27, 2019
    Replies:
    5
    Views:
    2,049
    Marmoset
    Oct 13, 2019
  40. Tom Makes Things

    Non-foiling trimarans under 20'

    Tom Makes Things, Sep 25, 2019 ... 4 5 6
    Replies:
    79
    Views:
    19,331
    kleppar
    Jun 10, 2021
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