Multihulls

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

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  1. Bronwen Clark

    Lex Nicol designed catamaran mould

    Bronwen Clark, Mar 4, 2023
    Replies:
    5
    Views:
    1,182
    oldmulti
    Mar 6, 2023
  2. BananaMan777

    Best resources for learning boat design (Planing hulls)

    BananaMan777, Mar 4, 2023
    Replies:
    10
    Views:
    1,544
    bajansailor
    Mar 4, 2023
  3. Andrea Wasserliebend

    Ratio of lateral to sail area

    Andrea Wasserliebend, Mar 3, 2023
    Replies:
    5
    Views:
    970
    Skyak
    Mar 3, 2023
  4. geoffkryten

    Catamaran math problem

    geoffkryten, Feb 17, 2023
    Replies:
    3
    Views:
    1,366
    bajansailor
    Feb 18, 2023
  5. Andrea Wasserliebend

    Looking for a small coastal cruising catamaran

    Andrea Wasserliebend, Feb 17, 2023
    Replies:
    6
    Views:
    2,081
    fallguy
    Feb 18, 2023
  6. Sylvain Savoie

    Trimaran fiberglass vs aluminum

    Sylvain Savoie, Feb 13, 2023
    Replies:
    4
    Views:
    1,674
    SolGato
    Feb 14, 2023
  7. SolGato

    Rotating Mast Control and Daggerboard Uphaul

    SolGato, Feb 12, 2023
    Replies:
    8
    Views:
    1,672
    SolGato
    Feb 20, 2023
  8. Kaido Loor

    Passive air cushion hull bottom

    Kaido Loor, Feb 4, 2023
    Replies:
    4
    Views:
    1,149
    jehardiman
    Feb 4, 2023
  9. voodoo child

    Demountable, 30+ to 40+foot Cat design?

    voodoo child, Feb 3, 2023
    Replies:
    13
    Views:
    3,048
    Christo
    Oct 9, 2023
  10. tropostudio

    Cat Ketch or Cat Schooner Rig on Trimaran...

    tropostudio, Jan 27, 2023
    Replies:
    13
    Views:
    1,966
    tropostudio
    Jan 29, 2023
  11. Wattser

    Crowther Buccaneer 37

    Wattser, Jan 9, 2023
    Replies:
    6
    Views:
    1,965
    SolGato
    Jan 10, 2023
  12. David L. Huber

    Hull shape addressing breaking effect from pitching

    David L. Huber, Jan 6, 2023
    Replies:
    3
    Views:
    1,217
    oldmulti
    Jan 6, 2023
  13. Victor Izidoro da silva

    trimaran buccaneer 28- Crowther 28

    Victor Izidoro da silva, Dec 29, 2022
    Replies:
    2
    Views:
    1,473
    bruceb
    Dec 30, 2022
  14. fallguy

    Derek Kelsall

    fallguy, Dec 17, 2022
    Replies:
    5
    Views:
    1,464
    rwatson
    Jan 24, 2023
  15. rael dobkins

    Proa Rudderless, Down Wind sailing!

    rael dobkins, Dec 13, 2022
    Replies:
    0
    Views:
    1,073
    rael dobkins
    Dec 13, 2022
  16. Paul Scott

    Center of effort of the A class catamaran sail

    Paul Scott, Nov 24, 2022 ... 2
    Replies:
    16
    Views:
    2,464
    Erwan
    Feb 9, 2024
  17. BobBill

    Seeking Assistance, Again

    BobBill, Nov 21, 2022
    Replies:
    3
    Views:
    787
    fallguy
    Nov 21, 2022
  18. rturbett

    Catamaran hull alignment

    rturbett, Nov 20, 2022
    Replies:
    2
    Views:
    1,223
    fallguy
    Nov 20, 2022
  19. ThomD

    Taulua - The Movie "All for a Horse"

    ThomD, Nov 20, 2022
    Replies:
    3
    Views:
    1,065
    Cheevo
    Jan 15, 2023
  20. rturbett

    Multi-hull history question

    rturbett, Oct 24, 2022
    Replies:
    7
    Views:
    1,566
    ThomD
    Nov 20, 2022
  21. brian eiland

    Aft-Mast Catamaran

    brian eiland, Oct 14, 2022
    Replies:
    6
    Views:
    1,688
    ThomD
    Nov 20, 2022
  22. John Rivers

    Are there warps or drogues that prevent pitchpoling

    John Rivers, Oct 11, 2022
    Replies:
    13
    Views:
    1,503
    ThomD
    Nov 20, 2022
  23. John Rivers

    Running curved dagger boards retracted under load

    John Rivers, Oct 7, 2022
    Replies:
    1
    Views:
    848
    seandepagnier
    Oct 8, 2022
  24. lane

    Split Paddleboard for Amas

    lane, Sep 30, 2022 ... 2
    Replies:
    15
    Views:
    2,691
    BlueBell
    Feb 17, 2023
  25. LePrince

    Aluminum catamaran cross beam height

    LePrince, Sep 27, 2022
    Replies:
    9
    Views:
    1,783
    ThomD
    Sep 29, 2022
  26. fallguy

    Woods Skoota Jig Available

    fallguy, Aug 29, 2022
    Replies:
    0
    Views:
    924
    fallguy
    Aug 29, 2022
  27. revintage

    Triple tube sliding beam

    revintage, Aug 22, 2022
    Replies:
    12
    Views:
    2,107
    waynemarlow
    Sep 9, 2022
  28. Russell Brown

    Strip-planking thickness for trimaran

    Russell Brown, Jul 28, 2022
    Replies:
    12
    Views:
    2,663
    Richard_F
    Aug 25, 2022
  29. tpchuckles

    super cheap, simple, dirty: kayak > trimaran

    tpchuckles, Jul 27, 2022
    Replies:
    10
    Views:
    3,391
    rnlock
    Aug 4, 2022
  30. BMP

    Semi submarine hull Te Puke

    BMP, Jul 7, 2022
    Replies:
    12
    Views:
    1,883
    BMP
    Jul 10, 2022
  31. BMP

    L/B ratios the same for short and long hulls?

    BMP, Jun 15, 2022
    Replies:
    13
    Views:
    2,431
    fallguy
    Jun 19, 2022
  32. BMP

    Cat or Tri with Lee Pod

    BMP, Jun 15, 2022
    Replies:
    5
    Views:
    1,755
    BMP
    Jun 15, 2022
  33. Islander63

    (strip)planking a Wharram TEHINI ?

    Islander63, Jun 15, 2022 ... 2 3 4
    Replies:
    46
    Views:
    6,270
    Islander63
    Jun 29, 2022
  34. rturbett

    Glassing the decks- any preference?

    rturbett, Jun 14, 2022 ... 2
    Replies:
    15
    Views:
    2,721
    rturbett
    Jul 30, 2022
  35. Finby

    Radical Bay style Bipod but with jibs only?

    Finby, Jun 3, 2022
    Replies:
    9
    Views:
    3,628
    Finby
    Jun 21, 2022
  36. member 76956

    HDPE Multihulls Indonesia

    member 76956, May 22, 2022
    Replies:
    2
    Views:
    3,510
    gonzo
    Oct 2, 2023
  37. member 76956

    Rectangular Tubing for Yacht Design?

    member 76956, May 21, 2022
    Replies:
    12
    Views:
    3,065
    rberrey
    Jun 9, 2022
  38. member 76956

    Sampan Lee Hull?

    member 76956, May 20, 2022
    Replies:
    10
    Views:
    2,833
    AlanX
    May 23, 2022
  39. Owly

    bridge deck streamlining greenhouse effect

    Owly, May 19, 2022
    Replies:
    1
    Views:
    2,143
    BlueBell
    May 20, 2022
  40. member 76956

    Shunting Catamaran?

    member 76956, May 15, 2022
    Replies:
    4
    Views:
    2,683
    member 76956
    May 16, 2022
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