Multihulls

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

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  1. Onefish

    Aluminum tube sectioned mast

    Onefish, Jan 29, 2020 ... 2
    Replies:
    23
    Views:
    4,005
    Alex0001
    May 3, 2024 at 5:23 AM
  2. Eli

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

    Eli, May 1, 2024 at 7:05 AM
    Replies:
    4
    Views:
    257
    SolGato
    May 3, 2024 at 3:18 AM
  3. oldmulti

    Multihull Structure Thoughts

    oldmulti, May 27, 2019 ... 259 260 261
    Replies:
    3,902
    Views:
    962,453
    oldmulti
    May 3, 2024 at 12:49 AM
  4. Nstray11

    Small cat crossbeam questions

    Nstray11, Apr 29, 2024 at 1:11 PM
    Replies:
    9
    Views:
    265
    Nstray11
    Apr 29, 2024 at 7:48 PM
  5. Quattro64

    Thermo-Lite Boards

    Quattro64, Apr 23, 2024 ... 2 3
    Replies:
    37
    Views:
    896
    Quattro64
    Apr 27, 2024 at 5:56 PM
  6. Bob Rosa

    Cooling water thru hull pickup placement

    Bob Rosa, Apr 24, 2024
    Replies:
    7
    Views:
    284
    Bob Rosa
    Apr 26, 2024
  7. MichaelRoberts

    Chinese electric winch?

    MichaelRoberts, Apr 22, 2024
    Replies:
    5
    Views:
    370
    fcfc
    Apr 24, 2024
  8. Teamscarab

    Siren 8.4 catamaran.

    Teamscarab, Sep 16, 2021
    Replies:
    10
    Views:
    7,295
    guzzis3
    Apr 16, 2024
  9. Skip Johnson

    Mast raising/lowering question

    Skip Johnson, Apr 12, 2024
    Replies:
    5
    Views:
    339
    Skip Johnson
    Apr 15, 2024
  10. Skip JayR

    How to sail/buy racing trimarans in cruising modus ?

    Skip JayR, Sep 30, 2015 ... 2
    Replies:
    20
    Views:
    9,725
    patzefran
    Apr 13, 2024
  11. hashtag_laeuft

    Balance considerations for Boardless Beachcat

    hashtag_laeuft, Apr 1, 2024
    Replies:
    4
    Views:
    541
    hashtag_laeuft
    Apr 11, 2024
  12. Adrian Baker

    Design of wood epoxy trimaran beams

    Adrian Baker, Dec 23, 2023 ... 2 3 4
    Replies:
    53
    Views:
    6,044
    nueva30
    Apr 11, 2024
  13. Slimes

    Cat Hull Design

    Slimes, Mar 18, 2024 ... 2
    Replies:
    17
    Views:
    1,217
    tane
    Mar 22, 2024
  14. Mulkari

    Light weight big open deck catamaran

    Mulkari, Feb 21, 2024 ... 2 3 4
    Replies:
    50
    Views:
    4,166
    Mulkari
    Mar 19, 2024
  15. Multihulls anonymous

    Extra Marstrom 32 and f40 catamaran hulls

    Multihulls anonymous, Mar 19, 2024
    Replies:
    0
    Views:
    361
    Multihulls anonymous
    Mar 19, 2024
  16. Scopic

    Over built flat deck power cat

    Scopic, Mar 11, 2024
    Replies:
    12
    Views:
    656
    Ad Hoc
    Mar 12, 2024
  17. Forecaddie

    25 foot 7.5m Drua research

    Forecaddie, Nov 28, 2023
    Replies:
    4
    Views:
    1,065
    rob denney
    Mar 9, 2024
  18. IvanAntun

    Inquiry for information from experienced boatbuilders and boat designers

    IvanAntun, Feb 8, 2024 ... 2 3
    Replies:
    34
    Views:
    2,688
    IvanAntun
    Mar 9, 2024
  19. Manfred.pech

    Everglades Challenge 2024

    Manfred.pech, Mar 4, 2024
    Replies:
    13
    Views:
    1,040
    portacruise
    Mar 7, 2024
  20. member 76956

    Custom Multihulls

    member 76956, May 8, 2022 ... 2
    Replies:
    24
    Views:
    6,710
    brian eiland
    Mar 2, 2024
  21. kimosadler

    Aluminum Strongall Sailing Catamaran Plans?

    kimosadler, May 4, 2009 ... 2
    Replies:
    19
    Views:
    51,747
    Rico chico
    Mar 1, 2024
  22. Michael78

    Multihulls Direct?

    Michael78, Feb 28, 2024
    Replies:
    0
    Views:
    491
    Michael78
    Feb 28, 2024
  23. lucdekeyser

    80 foot cargo harryproa

    lucdekeyser, Nov 15, 2020 ... 10 11 12
    Replies:
    174
    Views:
    42,762
    bajansailor
    Feb 23, 2024
  24. Jeremy Perkins

    Beginning: Hull shape and size

    Jeremy Perkins, Feb 12, 2024
    Replies:
    11
    Views:
    1,096
    BlueBell
    Feb 18, 2024
  25. Paul Scott

    Center of effort of the A class catamaran sail

    Paul Scott, Nov 24, 2022 ... 2
    Replies:
    16
    Views:
    2,492
    Erwan
    Feb 9, 2024
  26. tanjera

    Malcolm Tennant "Wild Thing" Tri

    tanjera, Sep 28, 2014 ... 2
    Replies:
    21
    Views:
    8,684
    oldmulti
    Feb 5, 2024
  27. waterbear

    The revisionist mythology of Wharram

    waterbear, Dec 8, 2023 ... 2 3
    Replies:
    39
    Views:
    4,485
    nota
    Feb 4, 2024
  28. Thule

    Wooden caramaran wisdom

    Thule, Jan 26, 2024 ... 2
    Replies:
    18
    Views:
    1,748
    Thule
    Jan 31, 2024
  29. Dolfiman

    Arkea Ultim challenge : the race around the world, in solo !

    Dolfiman, Jan 6, 2024
    Replies:
    8
    Views:
    1,697
    Dolfiman
    Jan 31, 2024
  30. Lucainbarca

    Rival 21 from batavento sailmakers brazil

    Lucainbarca, Apr 20, 2019 ... 2
    Replies:
    25
    Views:
    9,400
    Tchamo
    Jan 25, 2024
  31. Ilikebigboatsandicanotlie

    Limits to the beam of a catamaran ratio ?

    Ilikebigboatsandicanotlie, Dec 29, 2023
    Replies:
    13
    Views:
    1,708
    C. Dog
    Jan 19, 2024
  32. Steel Hull

    FAO 7.8 meter trimaran ocean capable?

    Steel Hull, Sep 30, 2023
    Replies:
    8
    Views:
    1,847
    gonzo
    Jan 16, 2024
  33. i_mac

    Mast Rotation Systems

    i_mac, Jan 8, 2024
    Replies:
    5
    Views:
    1,049
    Blueknarr
    Jan 15, 2024
  34. Corley

    Lex Nicol, did he ever create any stock plans?

    Corley, Mar 24, 2010 ... 2
    Replies:
    27
    Views:
    14,949
    C. Dog
    Jan 8, 2024
  35. James Wellington

    Solid laminate frp

    James Wellington, Dec 14, 2023 ... 2 3
    Replies:
    40
    Views:
    3,195
    latestarter
    Dec 26, 2023
  36. peterbike

    A bit of sailing history

    peterbike, Dec 21, 2023
    Replies:
    0
    Views:
    578
    peterbike
    Dec 21, 2023
  37. Michael Farmer

    Sailing outrigger canoe

    Michael Farmer, Aug 23, 2021 ... 2
    Replies:
    24
    Views:
    9,399
    Keern Haslem
    Dec 19, 2023
  38. Iridian

    Considering Homebuilding a ~50' Catamaran

    Iridian, Jun 10, 2021 ... 3 4 5
    Replies:
    69
    Views:
    13,854
    Air Tahiti
    Dec 17, 2023
  39. Air Tahiti

    Cross Beam thoughts for small Tri

    Air Tahiti, Aug 20, 2023 ... 2
    Replies:
    26
    Views:
    2,633
    Air Tahiti
    Dec 17, 2023
  40. 8Petros

    Low-cost experimental platform cat for inland waterways

    8Petros, Dec 2, 2023
    Replies:
    10
    Views:
    1,575
    waterbear
    Dec 8, 2023
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