Multihulls

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

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  1. TriJody

    16' Apollo Vaka / 18' Prindle Ama Trimaran

    TriJody, Oct 4, 2015
    Replies:
    4
    Views:
    2,788
    Tallseek
    Jan 20, 2025 at 10:51 AM
  2. waterbear

    The revisionist mythology of Wharram

    waterbear, Dec 8, 2023 ... 4 5 6
    Replies:
    83
    Views:
    10,424
    rwatson
    Jan 20, 2025 at 5:28 AM
  3. oldmulti

    Multihull Structure Thoughts

    oldmulti, May 27, 2019 ... 291 292 293
    Replies:
    4,381
    Views:
    1,162,396
    oldmulti
    Jan 19, 2025 at 11:09 PM
  4. Mulkari

    Designing a fast open deck catamaran

    Mulkari, Nov 26, 2024 ... 6 7 8
    Replies:
    105
    Views:
    5,316
    Skip Johnson
    Jan 18, 2025 at 8:04 PM
  5. magwas

    Multihull microcruiser design considerations (capsize survival)

    magwas, Jan 5, 2025 ... 2 3
    Replies:
    30
    Views:
    1,144
    Herreshock
    Jan 14, 2025 at 6:54 PM
  6. brian eiland

    X-Beam and the Giant

    brian eiland, Nov 12, 2006 ... 2 3
    Replies:
    36
    Views:
    15,977
    Herreshock
    Jan 11, 2025
  7. Owly

    Hobie Hulls (buyer's remorse)

    Owly, Feb 22, 2020 ... 2 3 4
    Replies:
    50
    Views:
    14,884
    Tallseek
    Jan 10, 2025
  8. revintage

    Main beam waterstays on small foiling tri

    revintage, Mar 25, 2019 ... 2
    Replies:
    26
    Views:
    5,493
    Tallseek
    Jan 10, 2025
  9. rael dobkins

    Proa, Fast Downwind Surfing, ZERO Weather Helm.

    rael dobkins, Dec 31, 2024
    Replies:
    2
    Views:
    319
    rael dobkins
    Jan 9, 2025
  10. Coyote Boats

    Demountable 25-30' catamarans - any used boats out there?

    Coyote Boats, Jan 4, 2025
    Replies:
    0
    Views:
    221
    Coyote Boats
    Jan 4, 2025
  11. yabert

    45' solar catamaran

    yabert, Nov 25, 2024 ... 5 6 7
    Replies:
    103
    Views:
    3,635
    gonzo
    Jan 4, 2025
  12. ChronoFish

    Kayak to Trimaran Conversion

    ChronoFish, Dec 15, 2024
    Replies:
    5
    Views:
    320
    ChronoFish
    Dec 16, 2024
  13. James Wellington

    Multi vs monohulls in Beaufort 12

    James Wellington, Nov 4, 2024
    Replies:
    14
    Views:
    1,056
    montero
    Dec 10, 2024
  14. waikikin

    Crowther Spindrift

    waikikin, Oct 18, 2014 ... 3 4 5
    Replies:
    66
    Views:
    8,261
    jimmyDu
    Dec 4, 2024
  15. SMA

    KD 650

    SMA, Nov 24, 2024
    Replies:
    2
    Views:
    476
    jamez
    Dec 3, 2024
  16. brian eiland

    Central Nacelle and Centerboard on CRUISING Cat

    brian eiland, Jun 15, 2024
    Replies:
    12
    Views:
    1,331
    brian eiland
    Nov 21, 2024
  17. redou

    Metal Multihull Cruiser - Seeking Input

    redou, Dec 6, 2007 ... 2
    Replies:
    16
    Views:
    3,647
    TANSL
    Nov 9, 2024
  18. kekdu

    Looking for a Low-Cost Easy to build multihull sailing design

    kekdu, Sep 27, 2024 ... 2
    Replies:
    19
    Views:
    2,411
    tane
    Nov 7, 2024
  19. rael dobkins

    Inside out short Vid, of a Balkan Proa, cruising along....

    rael dobkins, Nov 7, 2024
    Replies:
    0
    Views:
    347
    rael dobkins
    Nov 7, 2024
  20. lucdekeyser

    flat vs convex surfaces

    lucdekeyser, Oct 4, 2024 ... 7 8 9
    Replies:
    133
    Views:
    6,757
    lucdekeyser
    Nov 6, 2024
  21. Jagarwal

    Catamaran crossbeam design

    Jagarwal, Oct 9, 2024
    Replies:
    5
    Views:
    887
    gonzo
    Nov 3, 2024
  22. Mulkari

    High end vs low end cruising catamaran

    Mulkari, Oct 17, 2024 ... 2 3
    Replies:
    36
    Views:
    2,900
    gonzo
    Nov 1, 2024
  23. sailingsunstar2

    recognize this multihull?

    sailingsunstar2, Jun 9, 2024
    Replies:
    13
    Views:
    1,747
    cando2
    Oct 20, 2024
  24. rob denney

    Building a Harryproa C50 in Fiji

    rob denney, Oct 17, 2024
    Replies:
    3
    Views:
    762
    rob denney
    Oct 19, 2024
  25. rael dobkins

    Crab Claws can hang off anything, even just 3 ropes...

    rael dobkins, Oct 18, 2024
    Replies:
    0
    Views:
    472
    rael dobkins
    Oct 18, 2024
  26. nueva30

    Newick Val Rebuild

    nueva30, Sep 9, 2024 ... 2
    Replies:
    25
    Views:
    1,947
    nueva30
    Oct 18, 2024
  27. Coyote Boats

    Help identifying this 30-ish foot catamaran

    Coyote Boats, Oct 12, 2024
    Replies:
    2
    Views:
    530
    Coyote Boats
    Oct 16, 2024
  28. flagg

    Bob Oram website - something looks awfully wrong here??

    flagg, Oct 9, 2021
    Replies:
    2
    Views:
    11,571
    Flows
    Oct 9, 2024
  29. georgehype

    Floating island - Trimaran or Catamaran?

    georgehype, May 6, 2024 ... 2
    Replies:
    17
    Views:
    2,002
    TANSL
    Oct 9, 2024
  30. oldsailor7

    Buccaneer 24 Builders Forum

    oldsailor7, Jul 22, 2009 ... 193 194 195
    Replies:
    2,923
    Views:
    696,949
    buzzman
    Oct 7, 2024
  31. pdeinc

    Shipping options for a 45' mast

    pdeinc, Oct 4, 2024
    Replies:
    9
    Views:
    593
    Russell Brown
    Oct 5, 2024
  32. cando2

    questions and ideas for rob denney

    cando2, Jun 13, 2024 ... 2 3
    Replies:
    44
    Views:
    5,111
    redreuben
    Sep 26, 2024
  33. Scuff

    Kickup rudder critique

    Scuff, Nov 8, 2021 ... 2 3 4
    Replies:
    49
    Views:
    13,454
    wet feet
    Sep 26, 2024
  34. Mandebvu

    Mystery design and build. Any ideas?

    Mandebvu, Sep 10, 2024
    Replies:
    2
    Views:
    731
    Mandebvu
    Sep 10, 2024
  35. Dave574

    Malcolm Tennant Coaster 26

    Dave574, Sep 5, 2024
    Replies:
    13
    Views:
    1,147
    Dylan J
    Sep 6, 2024
  36. OldmanJoe

    Lock Crowther Buccaneer 24 tri

    OldmanJoe, Aug 30, 2024
    Replies:
    1
    Views:
    511
    redreuben
    Aug 31, 2024
  37. MinorThreat

    New Build: KD 860 Open

    MinorThreat, Aug 20, 2024 ... 2
    Replies:
    21
    Views:
    2,555
    rob denney
    Aug 29, 2024
  38. Bigfork

    Scored a Donor Cat, What is it?

    Bigfork, May 21, 2018 ... 2
    Replies:
    18
    Views:
    3,211
    Al Snyder
    Aug 28, 2024
  39. rael dobkins

    Shunting a proa, Balkan style...

    rael dobkins, Aug 10, 2024 ... 2
    Replies:
    16
    Views:
    1,558
    rael dobkins
    Aug 16, 2024
  40. Eli

    Which one out of these small multi-hull designs will be the best for my needs?

    Eli, May 1, 2024 ... 3 4 5
    Replies:
    65
    Views:
    9,105
    Eli
    Aug 16, 2024
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