Multihulls

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

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  1. InetRoadkill

    Prismatic for a trimaran?

    InetRoadkill, Aug 1, 2019 ... 2
    Replies:
    17
    Views:
    1,577
    Richard Woods
    Aug 5, 2019
  2. Enter Miles

    The Rewards of Designing and Building Your Boat

    Enter Miles, Aug 4, 2019
    Replies:
    3
    Views:
    854
    J Smythe
    Aug 4, 2019
  3. jamez

    Adrian Rogers design info

    jamez, Aug 2, 2019
    Replies:
    0
    Views:
    570
    jamez
    Aug 2, 2019
  4. Squidly-Diddly

    11 metre cat flips in rough seas, 3 dead

    Squidly-Diddly, Jul 11, 2019
    Replies:
    14
    Views:
    2,201
    sailhand
    Jul 29, 2019
  5. rael dobkins

    A Junk Rig for a Pacific Proa...

    rael dobkins, Jul 28, 2019
    Replies:
    2
    Views:
    846
    rael dobkins
    Jul 29, 2019
  6. valery gaulin

    Bridgedeck centreboard why don't they work???

    valery gaulin, Jan 10, 2017 ... 34 35 36
    Replies:
    532
    Views:
    43,866
    brian eiland
    Jul 27, 2019
  7. ChrisZ

    Pod catamaran rocker?

    ChrisZ, Jul 23, 2019 ... 2
    Replies:
    17
    Views:
    2,229
    Manfred.pech
    Jul 27, 2019
  8. InetRoadkill

    Horizontal paddle at front of hull?

    InetRoadkill, Jul 20, 2019 ... 2
    Replies:
    19
    Views:
    1,234
    InetRoadkill
    Jul 24, 2019
  9. Rolf Nilsen

    Earl Edwards Rave picklefork

    Rolf Nilsen, Dec 18, 2007 ... 2
    Replies:
    21
    Views:
    7,053
    allnunstoport
    Jul 24, 2019
  10. david@boatsmith

    Tiki 36

    david@boatsmith, Aug 3, 2010
    Replies:
    5
    Views:
    4,598
    Chris Pinner
    Jul 23, 2019
  11. Triroo

    Drogue

    Triroo, Jul 13, 2019
    Replies:
    3
    Views:
    613
    dsigned
    Jul 22, 2019
  12. InetRoadkill

    Cockpit location on a tri/pod cat hybrid.

    InetRoadkill, Jul 18, 2019
    Replies:
    2
    Views:
    745
    InetRoadkill
    Jul 19, 2019
  13. Gary Baigent

    6.5 to 7.5 metre performance/cruise multihulls

    Gary Baigent, Feb 27, 2015 ... 25 26 27
    Replies:
    403
    Views:
    82,787
    Gary Baigent
    Jul 19, 2019
  14. Vantage475T

    ISO Skiffmaran

    Vantage475T, Dec 23, 2016 ... 2
    Replies:
    25
    Views:
    9,617
    Vantage475T
    Jul 16, 2019
  15. revintage

    Second forestay chainplate on A-cat hull

    revintage, Jun 25, 2019 ... 2
    Replies:
    27
    Views:
    1,507
    revintage
    Jul 15, 2019
  16. sailhawaii

    Designing a 43' flat panel performance cruising catamaran

    sailhawaii, Jun 7, 2019
    Replies:
    9
    Views:
    2,606
    sailhawaii
    Jul 9, 2019
  17. Coastal Ogre

    Re-tabbing Bulkheads on a Production Catamaran

    Coastal Ogre, Jun 28, 2019
    Replies:
    10
    Views:
    1,283
    Coastal Ogre
    Jul 5, 2019
  18. waterbear

    Jarcat 6 verions, modifications etc.

    waterbear, Jun 28, 2019 ... 2
    Replies:
    17
    Views:
    5,665
    guzzis3
    Jul 2, 2019
  19. DennisRB

    Catamaran tender to replace rib?

    DennisRB, Jul 4, 2014 ... 3 4 5
    Replies:
    73
    Views:
    23,951
    Jolly Mon
    Jul 2, 2019
  20. Corley

    R2ak 2019

    Corley, Jun 3, 2019
    Replies:
    11
    Views:
    1,155
    Corley
    Jun 28, 2019
  21. Newickspark
    Locked

    World crushing-Fast-under 30’ Tri

    Newickspark, Jun 17, 2019 ... 2
    Replies:
    24
    Views:
    2,125
    Doug Lord
    Jun 27, 2019
  22. Newickspark
    Locked

    Ljungström Sail

    Newickspark, Jun 16, 2019 ... 2
    Replies:
    28
    Views:
    2,112
    peterbike
    Jun 22, 2019
  23. Doug Lord

    T2 Foiling Trimaran

    Doug Lord, May 29, 2019
    Replies:
    6
    Views:
    1,345
    Doug Lord
    Jun 21, 2019
  24. magwas

    Boat designer for a steel origami cat?

    magwas, Jun 17, 2019
    Replies:
    12
    Views:
    1,078
    guzzis3
    Jun 20, 2019
  25. Newickspark
    Locked

    New idea for a camping Tri

    Newickspark, Jun 14, 2019
    Replies:
    1
    Views:
    612
    jamez
    Jun 16, 2019
  26. Wally2

    Recommend me an angle of attack for outboards on a catamaran

    Wally2, Jun 2, 2019
    Replies:
    9
    Views:
    1,178
    fastsailing
    Jun 9, 2019
  27. magentawave

    Questions about safety of CSK / Polycon Catamarans for cruising

    magentawave, Mar 13, 2019
    Replies:
    8
    Views:
    1,621
    fhrussell
    Jun 5, 2019
  28. Doug Lord

    Flying Phantom F 18 Catamaran

    Doug Lord, Jul 13, 2012 ... 6 7 8
    Replies:
    111
    Views:
    53,294
    Doug Lord
    Jun 4, 2019
  29. dsigned

    24ft Bluewater cat sketch

    dsigned, Dec 18, 2018 ... 2 3
    Replies:
    34
    Views:
    3,391
    Niclas Vestman
    Jun 4, 2019
  30. Doug Lord

    20' and under trimaran beam-less than square, square or oversquare-and why.

    Doug Lord, May 15, 2019 ... 2
    Replies:
    17
    Views:
    1,703
    patzefran
    Jun 2, 2019
  31. buzzman

    45 ft part built tri on craigslist Mass.

    buzzman, Jun 13, 2018 ... 2 3
    Replies:
    44
    Views:
    6,158
    buzzman
    May 30, 2019
  32. WerpKerp

    RC 1/5 Scale AC50 Foiling Catamaran

    WerpKerp, Apr 29, 2019
    Replies:
    8
    Views:
    3,647
    WerpKerp
    May 29, 2019
  33. jamez

    Unusual 'foil' stabilised tri

    jamez, Dec 8, 2018 ... 2
    Replies:
    22
    Views:
    2,178
    Angélique
    May 28, 2019
  34. Doug Lord

    Macif Ultim Trimaran- to be relaunched in July 2018

    Doug Lord, Jun 17, 2018 ... 2
    Replies:
    26
    Views:
    3,170
    Doug Lord
    May 27, 2019
  35. Eric Lundy

    Horizontal fin drive trimaran

    Eric Lundy, May 21, 2019
    Replies:
    3
    Views:
    754
    Doug Lord
    May 25, 2019
  36. Doug Lord

    GC 32 super cat

    Doug Lord, Oct 15, 2012 ... 15 16 17
    Replies:
    240
    Views:
    51,553
    Doug Lord
    May 23, 2019
  37. Will001

    Trimaran folding system attachment

    Will001, May 13, 2019 ... 2
    Replies:
    26
    Views:
    2,355
    W17 designer
    May 20, 2019
  38. SolGato

    Tremolino -mixing old with new

    SolGato, May 17, 2019
    Replies:
    14
    Views:
    1,964
    Corley
    May 19, 2019
  39. Doug Lord

    Worrell 1000 May 2019

    Doug Lord, Apr 14, 2019
    Replies:
    7
    Views:
    836
    Doug Lord
    May 19, 2019
  40. Tchamo

    Use foam core and plywood in a catamaran hull

    Tchamo, Apr 7, 2019 ... 2 3
    Replies:
    32
    Views:
    4,437
    trip the light fandango
    May 19, 2019
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