Multihulls

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

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  1. BCowan

    Raidboat Pacific Proa

    BCowan, Sep 2, 2020 ... 2
    Replies:
    17
    Views:
    616
    upchurchmr
    Sep 30, 2020 at 6:18 PM
  2. oldmulti

    Multihull Structure Thoughts

    oldmulti, May 27, 2019 ... 88 89 90
    Replies:
    1,343
    Views:
    124,247
    oldmulti
    Sep 30, 2020 at 3:58 PM
  3. Matthias S.

    Newbie question: would this trimaran folding system work? (parallel hinge)

    Matthias S., Sep 25, 2020 at 3:31 PM
    Replies:
    7
    Views:
    262
    aussiebushman
    Sep 30, 2020 at 3:49 AM
  4. Doug Lord

    Gitana 17-100' Trimaran Foiler-Launch 7/17/17

    Doug Lord, Jul 13, 2017 ... 11 12 13
    Replies:
    188
    Views:
    17,403
    Dolfiman
    Sep 29, 2020 at 11:53 AM
  5. fallguy

    Anchor locations and placements

    fallguy, Sep 28, 2020 at 12:33 AM
    Replies:
    2
    Views:
    127
    Blueknarr
    Sep 28, 2020 at 1:03 AM
  6. Cholsson

    Is Corsair Dash 750 seaworthy for the race?

    Cholsson, Sep 26, 2020 at 3:48 AM
    Replies:
    2
    Views:
    156
    jehardiman
    Sep 26, 2020 at 2:26 PM
  7. oldsailor7

    Buccaneer 24 Builders Forum

    oldsailor7, Jul 22, 2009 ... 190 191 192
    Replies:
    2,867
    Views:
    532,969
    bruceb
    Sep 25, 2020 at 10:26 PM
  8. waynemarlow

    22 - 24 trimaran

    waynemarlow, Jul 22, 2008 ... 15 16 17
    Replies:
    251
    Views:
    107,400
    W17 designer
    Sep 24, 2020 at 11:35 PM
  9. zombat

    KLIS trimaran: owners wanted

    zombat, Dec 5, 2019 ... 2 3
    Replies:
    39
    Views:
    2,663
    zombat
    Sep 24, 2020 at 9:12 AM
  10. Trevlyns

    Asymmetric hulls

    Trevlyns, Oct 15, 2006 ... 2 3
    Replies:
    33
    Views:
    22,679
    DCockey
    Sep 22, 2020
  11. big-boss

    Waterworld Trimaran

    big-boss, Mar 25, 2008 ... 2
    Replies:
    24
    Views:
    60,369
    cole k santos
    Sep 22, 2020
  12. Jeff in Boston

    Order of importance for hull efficiency

    Jeff in Boston, Sep 15, 2020
    Replies:
    11
    Views:
    411
    redreuben
    Sep 20, 2020
  13. Tom Makes Things

    Non-foiling trimarans under 20'

    Tom Makes Things, Sep 25, 2019 ... 4 5 6
    Replies:
    75
    Views:
    3,262
    upchurchmr
    Sep 16, 2020
  14. Derek_9103

    Calculating expected heel for trimaran

    Derek_9103, Apr 29, 2020 ... 2
    Replies:
    26
    Views:
    1,331
    waynemarlow
    Sep 11, 2020
  15. Chotu

    Recommendation For Books Detailing Fit Out Minutia?

    Chotu, Jun 11, 2020
    Replies:
    10
    Views:
    530
    Rumars
    Sep 6, 2020
  16. brendan gardam

    reduce catamaran beam

    brendan gardam, Feb 11, 2020 ... 2 3
    Replies:
    32
    Views:
    2,343
    Mr Efficiency
    Sep 6, 2020
  17. brendan gardam

    tunnel clearance

    brendan gardam, Sep 2, 2020
    Replies:
    8
    Views:
    295
    Ad Hoc
    Sep 5, 2020
  18. Doug Lord

    Sodebo Ultim 3 Foiling Trimaran

    Doug Lord, Jan 1, 2019 ... 2 3
    Replies:
    37
    Views:
    4,542
    Doug Lord
    Sep 5, 2020
  19. trip the light fandango

    building new amas/floats from recycled beachcat hulls

    trip the light fandango, Apr 23, 2019 ... 4 5 6
    Replies:
    84
    Views:
    5,674
    Corley
    Sep 3, 2020
  20. tanjera

    Malcolm Tennant "Wild Thing" Tri

    tanjera, Sep 28, 2014 ... 2
    Replies:
    18
    Views:
    4,843
    Corley
    Sep 3, 2020
  21. Libertist

    Mast profile list - weight, specs, etc

    Libertist, Sep 1, 2020
    Replies:
    1
    Views:
    170
    Libertist
    Sep 1, 2020
  22. Doug Lord

    High Performance MPX Foil/Self-righting Trimaran-The Test Model

    Doug Lord, Dec 28, 2010 ... 196 197 198
    Replies:
    2,969
    Views:
    622,904
    Doug Lord
    Aug 31, 2020
  23. Mark O Hara

    Changing Catamaran Beams from Wood to Composite.

    Mark O Hara, Aug 4, 2020 ... 4 5 6
    Replies:
    78
    Views:
    2,225
    brian eiland
    Aug 28, 2020
  24. brian eiland

    X-Beam and the Giant

    brian eiland, Nov 12, 2006 ... 2 3
    Replies:
    35
    Views:
    11,869
    brian eiland
    Aug 28, 2020
  25. Slingshot

    Internal Web for composite dagger board or wing mast?

    Slingshot, Jul 29, 2020
    Replies:
    6
    Views:
    493
    oldmulti
    Aug 14, 2020
  26. Brian Fanner

    Flyfishing kick boat cat

    Brian Fanner, Jul 6, 2020 ... 2
    Replies:
    23
    Views:
    815
    Brian Fanner
    Aug 12, 2020
  27. magwas

    Hobie 18F centerboard box repair?

    magwas, Aug 5, 2020
    Replies:
    4
    Views:
    214
    philSweet
    Aug 9, 2020
  28. andybrnr

    Warren Light Craft Tandem Sail manuals/rigging guide?

    andybrnr, Aug 6, 2020
    Replies:
    4
    Views:
    222
    upchurchmr
    Aug 7, 2020
  29. Crashed

    Any buoyancy mathematician's around ?

    Crashed, Aug 6, 2020 ... 2
    Replies:
    29
    Views:
    609
    Rumars
    Aug 7, 2020
  30. waynemarlow

    Max lift on symetric foils at 6 degrees inclination

    waynemarlow, Jul 25, 2020
    Replies:
    1
    Views:
    232
    waynemarlow
    Jul 25, 2020
  31. Roni

    Using aluminiun masts sections as tranverse structure instead of bulkheads

    Roni, Jul 20, 2020 ... 2
    Replies:
    29
    Views:
    691
    Roni
    Jul 24, 2020
  32. Dolfiman

    Ultims are back, for the Dhream Cup july 19

    Dolfiman, Jul 17, 2020
    Replies:
    11
    Views:
    393
    Dolfiman
    Jul 22, 2020
  33. Capt Ridder

    Looking for good resolution images of a Kurt Hughes 65' Cat

    Capt Ridder, Jul 9, 2020
    Replies:
    4
    Views:
    368
    Capt Ridder
    Jul 13, 2020
  34. Roni

    Resistance prediction methods/series for catamarans

    Roni, Jul 8, 2020
    Replies:
    6
    Views:
    462
    Dolfiman
    Jul 11, 2020
  35. outside the box

    Buccaneer 24, Buccaneer 28 and now Buccaneer 33 plans are also now to be available.

    outside the box, Jan 21, 2015 ... 7 8 9
    Replies:
    121
    Views:
    27,242
    oldmulti
    Jul 10, 2020
  36. Nico Crispi

    Unstayed carbon fiber mast on cruising catamaran?

    Nico Crispi, Jul 15, 2017 ... 3 4 5
    Replies:
    61
    Views:
    7,437
    brian eiland
    Jul 8, 2020
  37. cutawaycafe

    Biplane rigs

    cutawaycafe, May 15, 2013 ... 4 5 6
    Replies:
    85
    Views:
    26,047
    brian eiland
    Jul 8, 2020
  38. Doug Lord

    Mothquito with "Increased Foiling System"

    Doug Lord, Feb 19, 2018 ... 2
    Replies:
    20
    Views:
    2,865
    Doug Lord
    Jul 7, 2020
  39. tom ybarrola

    24' Buccaneer Trimaran

    tom ybarrola, Apr 23, 2012 ... 2
    Replies:
    20
    Views:
    4,722
    freddyj
    Jul 3, 2020
  40. John Perry

    AYRS meeting - Bernard Rhodes - Trimaran design, build and voyaging

    John Perry, May 29, 2020
    Replies:
    6
    Views:
    634
    zombat
    Jul 2, 2020
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