Multihulls

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

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  1. Skip Johnson

    Mast raising/lowering question

    Skip Johnson, Apr 12, 2024 at 9:25 PM
    Replies:
    5
    Views:
    222
    Skip Johnson
    Apr 15, 2024 at 2:01 PM
  2. hashtag_laeuft

    Balance considerations for Boardless Beachcat

    hashtag_laeuft, Apr 1, 2024
    Replies:
    4
    Views:
    474
    hashtag_laeuft
    Apr 11, 2024 at 6:09 PM
  3. Multihulls anonymous

    Extra Marstrom 32 and f40 catamaran hulls

    Multihulls anonymous, Mar 19, 2024
    Replies:
    0
    Views:
    304
    Multihulls anonymous
    Mar 19, 2024
  4. Slimes

    Cat Hull Design

    Slimes, Mar 18, 2024 ... 2
    Replies:
    17
    Views:
    1,076
    tane
    Mar 22, 2024
  5. Scopic

    Over built flat deck power cat

    Scopic, Mar 11, 2024
    Replies:
    12
    Views:
    582
    Ad Hoc
    Mar 12, 2024
  6. Manfred.pech

    Everglades Challenge 2024

    Manfred.pech, Mar 4, 2024
    Replies:
    13
    Views:
    940
    portacruise
    Mar 7, 2024
  7. Michael78

    Multihulls Direct?

    Michael78, Feb 28, 2024
    Replies:
    0
    Views:
    428
    Michael78
    Feb 28, 2024
  8. Mulkari

    Light weight big open deck catamaran

    Mulkari, Feb 21, 2024 ... 2 3 4
    Replies:
    50
    Views:
    3,851
    Mulkari
    Mar 19, 2024
  9. Jeremy Perkins

    Beginning: Hull shape and size

    Jeremy Perkins, Feb 12, 2024
    Replies:
    11
    Views:
    1,038
    BlueBell
    Feb 18, 2024
  10. IvanAntun

    Inquiry for information from experienced boatbuilders and boat designers

    IvanAntun, Feb 8, 2024 ... 2 3
    Replies:
    34
    Views:
    2,518
    IvanAntun
    Mar 9, 2024
  11. Thule

    Wooden caramaran wisdom

    Thule, Jan 26, 2024 ... 2
    Replies:
    18
    Views:
    1,648
    Thule
    Jan 31, 2024
  12. i_mac

    Mast Rotation Systems

    i_mac, Jan 8, 2024
    Replies:
    5
    Views:
    994
    Blueknarr
    Jan 15, 2024
  13. Dolfiman

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

    Dolfiman, Jan 6, 2024
    Replies:
    8
    Views:
    1,653
    Dolfiman
    Jan 31, 2024
  14. Ilikebigboatsandicanotlie

    Limits to the beam of a catamaran ratio ?

    Ilikebigboatsandicanotlie, Dec 29, 2023
    Replies:
    13
    Views:
    1,626
    C. Dog
    Jan 19, 2024
  15. Adrian Baker

    Design of wood epoxy trimaran beams

    Adrian Baker, Dec 23, 2023 ... 2 3 4
    Replies:
    53
    Views:
    5,807
    nueva30
    Apr 11, 2024 at 9:05 AM
  16. peterbike

    A bit of sailing history

    peterbike, Dec 21, 2023
    Replies:
    0
    Views:
    546
    peterbike
    Dec 21, 2023
  17. James Wellington

    Solid laminate frp

    James Wellington, Dec 14, 2023 ... 2 3
    Replies:
    40
    Views:
    3,105
    latestarter
    Dec 26, 2023
  18. waterbear

    The revisionist mythology of Wharram

    waterbear, Dec 8, 2023 ... 2 3
    Replies:
    39
    Views:
    4,275
    nota
    Feb 4, 2024
  19. 8Petros

    Low-cost experimental platform cat for inland waterways

    8Petros, Dec 2, 2023
    Replies:
    10
    Views:
    1,509
    waterbear
    Dec 8, 2023
  20. power boater

    Duet's consumption report

    power boater, Dec 1, 2023
    Replies:
    5
    Views:
    918
    fallguy
    Dec 3, 2023
  21. Forecaddie

    25 foot 7.5m Drua research

    Forecaddie, Nov 28, 2023
    Replies:
    4
    Views:
    1,024
    rob denney
    Mar 9, 2024
  22. Bob McDowell

    Where did Uffa Fox sail Shearwater Catamaran 990?

    Bob McDowell, Nov 26, 2023
    Replies:
    3
    Views:
    925
    Bob McDowell
    Nov 28, 2023
  23. Joseph Guthrie

    Outboard motor sled design

    Joseph Guthrie, Nov 14, 2023
    Replies:
    3
    Views:
    1,068
    Joseph Guthrie
    Nov 15, 2023
  24. Manfred.pech

    Wingmaran

    Manfred.pech, Nov 6, 2023
    Replies:
    2
    Views:
    845
    Manfred.pech
    Nov 8, 2023
  25. power boater

    Duet launch

    power boater, Nov 4, 2023
    Replies:
    14
    Views:
    1,002
    power boater
    Nov 5, 2023
  26. Forecaddie

    Scaled model how to calculate weight

    Forecaddie, Oct 29, 2023
    Replies:
    10
    Views:
    1,524
    gonzo
    Nov 9, 2023
  27. waterbear

    Gougeonified Chat 18 knockabout

    waterbear, Oct 27, 2023
    Replies:
    6
    Views:
    953
    kapnD
    Oct 28, 2023
  28. Tyler DeWitt

    How to assess bulkhead strength of completed boat

    Tyler DeWitt, Oct 27, 2023
    Replies:
    7
    Views:
    1,114
    gonzo
    Oct 30, 2023
  29. Forecaddie

    10 meter proa sail rig options

    Forecaddie, Oct 18, 2023
    Replies:
    10
    Views:
    1,703
    ALL AT SEA
    Oct 27, 2023
  30. David Swingler

    Design idea for a 15' cruising cat

    David Swingler, Oct 16, 2023
    Replies:
    13
    Views:
    2,186
    Will Gilmore
    Nov 28, 2023
  31. mrlonely

    Catamaran Strength Analysis

    mrlonely, Oct 10, 2023
    Replies:
    6
    Views:
    1,300
    Ad Hoc
    Oct 12, 2023
  32. Matt Wiseman

    Normon Cross Trimarans

    Matt Wiseman, Oct 7, 2023
    Replies:
    4
    Views:
    956
    Matt Wiseman
    Oct 7, 2023
  33. Holden

    Trimaran Build

    Holden, Oct 2, 2023
    Replies:
    7
    Views:
    1,308
    kapnD
    Oct 5, 2023
  34. Steel Hull

    FAO 7.8 meter trimaran ocean capable?

    Steel Hull, Sep 30, 2023
    Replies:
    8
    Views:
    1,789
    gonzo
    Jan 16, 2024
  35. alan craig

    weymouth speed week 1973

    alan craig, Sep 24, 2023
    Replies:
    5
    Views:
    676
    alan craig
    Sep 26, 2023
  36. TeeKay

    Any Seawind 24 owners on here?

    TeeKay, Sep 21, 2023
    Replies:
    8
    Views:
    1,233
    Corley_01
    Sep 28, 2023
  37. willy13

    Gemini Catamaran, new builds?

    willy13, Sep 12, 2023
    Replies:
    3
    Views:
    1,143
    comfisherman
    Sep 13, 2023
  38. Pat Ross

    Daggerboads - Down/Up/Removed

    Pat Ross, Sep 8, 2023
    Replies:
    2
    Views:
    908
    TeeKay
    Sep 21, 2023
  39. Jp de B

    Best free CAD for trimaran design

    Jp de B, Sep 8, 2023
    Replies:
    2
    Views:
    1,054
    Jp de B
    Sep 8, 2023
  40. Kurtz

    24ft Wa'apa / Hobie 16 mashup / shelter pod

    Kurtz, Aug 28, 2023
    Replies:
    9
    Views:
    1,409
    Kurtz
    Sep 1, 2023
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