Multihulls

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

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  1. rturbett

    Okume ply decks- to glass or not to glass

    rturbett, May 13, 2022
    Replies:
    6
    Views:
    2,600
    rturbett
    May 14, 2022
  2. member 76956

    Custom Multihulls

    member 76956, May 8, 2022 ... 2
    Replies:
    24
    Views:
    6,640
    brian eiland
    Mar 2, 2024
  3. East Coast Sailor

    Easton Catamarans

    East Coast Sailor, May 4, 2022
    Replies:
    0
    Views:
    3,201
    East Coast Sailor
    May 4, 2022
  4. Burnside Style

    Plywood Tornado US21 Hull Repair

    Burnside Style, May 1, 2022
    Replies:
    5
    Views:
    3,028
    Burnside Style
    May 4, 2022
  5. SeaBoat

    Block coefficient of Multihull

    SeaBoat, Apr 11, 2022
    Replies:
    1
    Views:
    3,788
    jehardiman
    Apr 11, 2022
  6. rael dobkins

    Proa Self Steering? AD-Scull? Sheet to Tiller? Lets see...

    rael dobkins, Apr 2, 2022
    Replies:
    2
    Views:
    3,727
    rael dobkins
    Apr 4, 2022
  7. perry2222

    Norewegian Multi hull designers

    perry2222, Mar 20, 2022
    Replies:
    11
    Views:
    4,331
    redreuben
    May 14, 2022
  8. seandepagnier

    rudder design - gudgeon size

    seandepagnier, Mar 20, 2022
    Replies:
    12
    Views:
    4,220
    seandepagnier
    Sep 7, 2022
  9. Russell Brown

    Jzerro is about to round Cape Horn

    Russell Brown, Mar 15, 2022
    Replies:
    8
    Views:
    4,692
    ImaginaryNumber
    Aug 12, 2022
  10. MichaelRoberts

    Laminate or dacron for 60 foot catamaran

    MichaelRoberts, Mar 4, 2022 ... 2
    Replies:
    17
    Views:
    5,816
    Skyak
    Apr 21, 2022
  11. revintage

    Trimaran alignment of hulls with different rocker

    revintage, Mar 1, 2022
    Replies:
    10
    Views:
    4,623
    revintage
    Mar 23, 2022
  12. BobBill

    More Changes to basic (Malibu) Outrigger...

    BobBill, Feb 25, 2022
    Replies:
    3
    Views:
    3,990
    BobBill
    Feb 26, 2022
  13. revintage

    Single water stay attachment for both beams

    revintage, Feb 22, 2022
    Replies:
    0
    Views:
    3,607
    revintage
    Feb 22, 2022
  14. perry2222

    Dagger board control lines

    perry2222, Feb 12, 2022
    Replies:
    2
    Views:
    3,997
    perry2222
    Feb 13, 2022
  15. rturbett

    Deconstructive testing!

    rturbett, Jan 31, 2022
    Replies:
    5
    Views:
    4,195
    rturbett
    Feb 1, 2022
  16. rturbett

    First try at making a Shark mould!

    rturbett, Jan 31, 2022
    Replies:
    3
    Views:
    4,298
    rturbett
    Feb 10, 2022
  17. Boy Griffioen

    D shape or semi oval advances wing systems shape for double mainsail

    Boy Griffioen, Jan 24, 2022 ... 2
    Replies:
    18
    Views:
    6,177
    Erwan
    Feb 25, 2022
  18. rob denney

    Foiler 50

    rob denney, Jan 21, 2022
    Replies:
    1
    Views:
    4,561
    lucdekeyser
    Jan 25, 2022
  19. MichaelRoberts

    Epoxy water lock for wet exhaust

    MichaelRoberts, Jan 15, 2022 ... 2 3
    Replies:
    33
    Views:
    8,516
    MichaelRoberts
    Jan 27, 2022
  20. peteyak

    Rudder mount design for small outrigger

    peteyak, Jan 11, 2022
    Replies:
    13
    Views:
    5,477
    revintage
    Jan 19, 2022
  21. DamianW86

    Building 17' wide 14' long deck

    DamianW86, Jan 7, 2022 ... 2
    Replies:
    17
    Views:
    6,389
    redreuben
    Apr 10, 2022
  22. Paul Scott

    Frankenboat questions

    Paul Scott, Jan 3, 2022
    Replies:
    0
    Views:
    4,797
    Paul Scott
    Jan 3, 2022
  23. Manfred.pech

    ...to smash all records

    Manfred.pech, Jan 1, 2022
    Replies:
    9
    Views:
    5,131
    jehardiman
    Jan 1, 2022
  24. guzzis3

    Sydney to Hobart multihulls

    guzzis3, Dec 27, 2021 ... 2
    Replies:
    18
    Views:
    7,790
    redreuben
    Jan 1, 2022
  25. sun

    Is there an estimation formula for calculating wave force of different marine structures？

    sun, Dec 27, 2021
    Replies:
    11
    Views:
    5,608
    jehardiman
    Jan 3, 2022
  26. revintage

    Small trimaran with Tornado/Nacra 5.8 center hull

    revintage, Dec 25, 2021 ... 3 4 5
    Replies:
    60
    Views:
    16,583
    revintage
    Sep 9, 2023
  27. Kuter

    Tri with central hull smaller than side hulls

    Kuter, Dec 23, 2021
    Replies:
    8
    Views:
    6,028
    rxcomposite
    Dec 24, 2021
  28. Flotation

    Bieker B53

    Flotation, Dec 22, 2021
    Replies:
    5
    Views:
    5,906
    redreuben
    Mar 15, 2022
  29. Iridian

    Catamaran Transport Methods

    Iridian, Dec 19, 2021 ... 2
    Replies:
    25
    Views:
    7,451
    gonzo
    Jan 22, 2022
  30. redreuben

    Vale James Wharram

    redreuben, Dec 18, 2021
    Replies:
    3
    Views:
    5,741
    jamez
    Dec 18, 2021
  31. PeculiarBob

    Mike Waller yacht design opinions?

    PeculiarBob, Dec 16, 2021 ... 2
    Replies:
    21
    Views:
    9,823
    jamez
    Jan 11, 2022
  32. DamianW86

    looking for spreaders reynolds 33 spar

    DamianW86, Dec 8, 2021
    Replies:
    1
    Views:
    5,265
    SolGato
    Dec 9, 2021
  33. MrMillard

    Amateur trimaran design critique

    MrMillard, Dec 1, 2021 ... 5 6 7
    Replies:
    98
    Views:
    18,685
    Bobuk25
    Mar 23, 2022
  34. ChrisVJ

    Pre bent masts

    ChrisVJ, Nov 29, 2021
    Replies:
    13
    Views:
    6,377
    Blueknarr
    Dec 6, 2021
  35. Manfred.pech

    French Trimaran

    Manfred.pech, Nov 25, 2021
    Replies:
    5
    Views:
    6,376
    redreuben
    Nov 26, 2021
  36. rael dobkins

    ROUGH sea PROA Cruising, SHUNTING is the FUTURE... Balkan Shipyards

    rael dobkins, Nov 24, 2021
    Replies:
    8
    Views:
    6,960
    rael dobkins
    Dec 8, 2021
  37. Scuff

    Kickup rudder critique

    Scuff, Nov 8, 2021 ... 2 3
    Replies:
    31
    Views:
    9,714
    freddyj
    Feb 14, 2022
  38. RampantMule

    SAN-PVC-PET foam core

    RampantMule, Nov 6, 2021 ... 2
    Replies:
    20
    Views:
    9,497
    guzzis3
    Aug 6, 2022
  39. guzzis3

    L shaped centerboards

    guzzis3, Oct 24, 2021
    Replies:
    7
    Views:
    6,146
    upchurchmr
    Oct 26, 2021
  40. Stumble

    Design thoughts?

    Stumble, Oct 19, 2021 ... 2
    Replies:
    20
    Views:
    12,525
    rob denney
    Oct 23, 2021
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