Multihulls

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

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  1. Doug Lord

    Flying Phantom F 18 Catamaran

    Doug Lord, Jul 13, 2012 ... 6 7 8
    Replies:
    111
    Views:
    59,816
    Doug Lord
    Jun 4, 2019
  2. magentawave

    Questions about safety of CSK / Polycon Catamarans for cruising

    magentawave, Mar 13, 2019
    Replies:
    8
    Views:
    3,941
    fhrussell
    Jun 5, 2019
  3. Wally2

    Recommend me an angle of attack for outboards on a catamaran

    Wally2, Jun 2, 2019
    Replies:
    9
    Views:
    2,497
    fastsailing
    Jun 9, 2019
  4. Newickspark
    Locked

    New idea for a camping Tri

    Newickspark, Jun 14, 2019
    Replies:
    1
    Views:
    1,244
    jamez
    Jun 16, 2019
  5. magwas

    Boat designer for a steel origami cat?

    magwas, Jun 17, 2019
    Replies:
    12
    Views:
    2,155
    guzzis3
    Jun 20, 2019
  6. Doug Lord

    T2 Foiling Trimaran

    Doug Lord, May 29, 2019
    Replies:
    6
    Views:
    2,547
    Doug Lord
    Jun 21, 2019
  7. Newickspark
    Locked

    Ljungström Sail

    Newickspark, Jun 16, 2019 ... 2
    Replies:
    28
    Views:
    4,819
    peterbike
    Jun 22, 2019
  8. Newickspark
    Locked

    World crushing-Fast-under 30’ Tri

    Newickspark, Jun 17, 2019 ... 2
    Replies:
    24
    Views:
    4,712
    Doug Lord
    Jun 27, 2019
  9. Corley

    R2ak 2019

    Corley, Jun 3, 2019
    Replies:
    11
    Views:
    1,954
    Corley
    Jun 28, 2019
  10. Coastal Ogre

    Re-tabbing Bulkheads on a Production Catamaran

    Coastal Ogre, Jun 28, 2019
    Replies:
    10
    Views:
    3,753
    Coastal Ogre
    Jul 5, 2019
  11. sailhawaii

    Designing a 43' flat panel performance cruising catamaran

    sailhawaii, Jun 7, 2019
    Replies:
    9
    Views:
    5,284
    sailhawaii
    Jul 9, 2019
  12. revintage

    Second forestay chainplate on A-cat hull

    revintage, Jun 25, 2019 ... 2
    Replies:
    27
    Views:
    3,429
    revintage
    Jul 15, 2019
  13. Vantage475T

    ISO Skiffmaran

    Vantage475T, Dec 23, 2016 ... 2
    Replies:
    25
    Views:
    11,515
    Vantage475T
    Jul 16, 2019
  14. Gary Baigent

    6.5 to 7.5 metre performance/cruise multihulls

    Gary Baigent, Feb 27, 2015 ... 25 26 27
    Replies:
    403
    Views:
    98,951
    Gary Baigent
    Jul 19, 2019
  15. InetRoadkill

    Cockpit location on a tri/pod cat hybrid.

    InetRoadkill, Jul 18, 2019
    Replies:
    2
    Views:
    1,585
    InetRoadkill
    Jul 19, 2019
  16. Triroo

    Drogue

    Triroo, Jul 13, 2019
    Replies:
    3
    Views:
    1,246
    dsigned
    Jul 22, 2019
  17. david@boatsmith

    Tiki 36

    david@boatsmith, Aug 3, 2010
    Replies:
    5
    Views:
    6,354
    Chris Pinner
    Jul 23, 2019
  18. Rolf Nilsen

    Earl Edwards Rave picklefork

    Rolf Nilsen, Dec 18, 2007 ... 2
    Replies:
    21
    Views:
    8,649
    allnunstoport
    Jul 24, 2019
  19. InetRoadkill

    Horizontal paddle at front of hull?

    InetRoadkill, Jul 20, 2019 ... 2
    Replies:
    19
    Views:
    2,402
    InetRoadkill
    Jul 24, 2019
  20. ChrisZ

    Pod catamaran rocker?

    ChrisZ, Jul 23, 2019 ... 2
    Replies:
    17
    Views:
    4,487
    Manfred.pech
    Jul 27, 2019
  21. valery gaulin

    Bridgedeck centreboard why don't they work???

    valery gaulin, Jan 10, 2017 ... 34 35 36
    Replies:
    532
    Views:
    72,138
    brian eiland
    Jul 27, 2019
  22. rael dobkins

    A Junk Rig for a Pacific Proa...

    rael dobkins, Jul 28, 2019
    Replies:
    2
    Views:
    1,771
    rael dobkins
    Jul 29, 2019
  23. Squidly-Diddly

    11 metre cat flips in rough seas, 3 dead

    Squidly-Diddly, Jul 11, 2019
    Replies:
    14
    Views:
    4,030
    sailhand
    Jul 29, 2019
  24. jamez

    Adrian Rogers design info

    jamez, Aug 2, 2019
    Replies:
    0
    Views:
    1,413
    jamez
    Aug 2, 2019
  25. Enter Miles

    The Rewards of Designing and Building Your Boat

    Enter Miles, Aug 4, 2019
    Replies:
    3
    Views:
    1,974
    J Smythe
    Aug 4, 2019
  26. InetRoadkill

    Prismatic for a trimaran?

    InetRoadkill, Aug 1, 2019 ... 2
    Replies:
    17
    Views:
    3,568
    Richard Woods
    Aug 5, 2019
  27. Rene Amyot

    I built a small beach cat

    Rene Amyot, Jul 24, 2019
    Replies:
    13
    Views:
    3,204
    Rene Amyot
    Aug 5, 2019
  28. rael dobkins

    Pacific Proa, Shunting Junk Rig, the details....

    rael dobkins, Aug 6, 2019
    Replies:
    0
    Views:
    1,578
    rael dobkins
    Aug 6, 2019
  29. Tim McNamara

    Simple multi chine catamaran

    Tim McNamara, Apr 14, 2019
    Replies:
    7
    Views:
    4,048
    oldmulti
    Aug 6, 2019
  30. Manfred.pech

    An old dream....

    Manfred.pech, Aug 7, 2019
    Replies:
    2
    Views:
    4,341
    Manfred.pech
    Aug 7, 2019
  31. AJP

    Effective power to Horsepower

    AJP, Aug 8, 2019
    Replies:
    5
    Views:
    1,618
    AJP
    Aug 8, 2019
  32. DennisRB

    Crowther design 226A (42 foot cruising cat)

    DennisRB, Jan 25, 2014 ... 2 3
    Replies:
    38
    Views:
    19,554
    xrudi
    Aug 8, 2019
  33. Brainzguy

    F28R Daggerboard specs

    Brainzguy, Jul 29, 2019
    Replies:
    4
    Views:
    2,041
    Brainzguy
    Aug 9, 2019
  34. Doug Lord

    Sail GP-a new Grand Prix Foiling Cat Racing League

    Doug Lord, Oct 2, 2018 ... 2 3
    Replies:
    34
    Views:
    6,043
    Doug Lord
    Aug 14, 2019
  35. Dolfiman

    Ultims in next Fastnet race 3rd August

    Dolfiman, Jul 6, 2019 ... 2
    Replies:
    18
    Views:
    2,687
    Doug Lord
    Aug 21, 2019
  36. Andrewb1973

    Foiling modification to a Corsair F28 - anyone tried it ?

    Andrewb1973, Aug 16, 2019
    Replies:
    4
    Views:
    3,095
    Andrewb1973
    Aug 23, 2019
  37. Doug Lord

    TF 35 Relatively Light Air Foiler

    Doug Lord, Aug 23, 2019
    Replies:
    1
    Views:
    1,953
    Doug Lord
    Aug 23, 2019
  38. Doug Lord

    Hydroptere-Sad End to a Great Lady

    Doug Lord, Jul 27, 2019
    Replies:
    3
    Views:
    2,483
    Doug Lord
    Aug 28, 2019
  39. Damon Cruz

    Horstman 45 rudder mod

    Damon Cruz, Jul 3, 2019
    Replies:
    3
    Views:
    1,754
    Scuff
    Sep 4, 2019
  40. Andrewb1973

    Automatic sheet release system ?

    Andrewb1973, Aug 16, 2019 ... 2
    Replies:
    18
    Views:
    4,388
    Andrewb1973
    Sep 11, 2019
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