Multihulls

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

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  1. b_rodwell

    Proposal for catamaran rudders

    b_rodwell, Jun 24, 2007 ... 2
    Replies:
    15
    Views:
    10,984
    Frosty
    Dec 28, 2007
  2. paxfish

    High Speed Rudder issue....

    paxfish, Oct 12, 2015 ... 4 5 6
    Replies:
    76
    Views:
    10,977
    oldsailor7
    Nov 6, 2015
  3. damies

    Help to identify this Piver model

    damies, Dec 2, 2009 ... 2
    Replies:
    19
    Views:
    10,962
    DarthCluin
    Nov 4, 2010
  4. bigkahuna

    Simpson catamaran designs?

    bigkahuna, May 7, 2017 ... 2
    Replies:
    26
    Views:
    10,953
    Gwion
    May 10, 2017
  5. henrikb

    22ft racing tri design

    henrikb, Feb 18, 2007 ... 2
    Replies:
    29
    Views:
    10,916
    ThomD
    Oct 14, 2010
  6. Corley

    Route des Princes 2013

    Corley, Jun 5, 2013 ... 6 7 8
    Replies:
    106
    Views:
    10,903
    pipeline
    Jul 13, 2013
  7. Nordic Cat

    Bi-rig performance cruiser

    Nordic Cat, Apr 17, 2008 ... 2 3
    Replies:
    33
    Views:
    10,896
    brian eiland
    Dec 31, 2009
  8. kaymaran
    Locked

    4.75m Trimaran Project

    kaymaran, Jan 2, 2016 ... 3 4 5
    Replies:
    66
    Views:
    10,891
    Boat Design Net Moderator
    Jan 10, 2016
  9. Alexis_greece

    Gato Especial Catamaran Adventures

    Alexis_greece, Nov 9, 2009 ... 2
    Replies:
    21
    Views:
    10,871
    Chris Ostlind
    Dec 5, 2009
  10. Becaris

    Best Cat Cruiser balancing comfort with function.

    Becaris, Jul 2, 2010 ... 2 3
    Replies:
    37
    Views:
    10,860
    BigCat
    Aug 21, 2010
  11. murban

    Small tri ( 17 ~ 23 f )

    murban, Jun 10, 2010 ... 2
    Replies:
    25
    Views:
    10,818
    Barry Sanders
    Jun 19, 2011
  12. Doug Halsey

    Hydrofoil Trimarans in New Zealand : Attn Gary Baigent

    Doug Halsey, May 27, 2008
    Replies:
    8
    Views:
    10,750
    Gary Baigent
    May 29, 2008
  13. Nnnnnnnn

    Inflatable A-class and other inflatable multihulls from ex-USSR

    Nnnnnnnn, Aug 21, 2013 ... 2
    Replies:
    23
    Views:
    10,747
    Nnnnnnnn
    Aug 27, 2013
  14. Chris Ostlind

    Tornado Team Takes Everglades Challenge

    Chris Ostlind, Mar 3, 2008 ... 2
    Replies:
    22
    Views:
    10,741
    edvb
    Mar 9, 2008
  15. captainsideburn

    what is this Cat

    captainsideburn, Mar 16, 2009 ... 2 3
    Replies:
    30
    Views:
    10,735
    Attunga20man
    Jan 8, 2018
  16. Konstanty

    Tanker proa

    Konstanty, Apr 18, 2016 ... 5 6 7
    Replies:
    97
    Views:
    10,679
    gonzo
    Apr 18, 2018
  17. bluebox3000

    One or two outboards on sailing catamaran

    bluebox3000, Oct 14, 2013
    Replies:
    7
    Views:
    10,662
    Steve W
    Oct 18, 2013
  18. rapscallion

    asymmetric spinnaker questions

    rapscallion, Apr 4, 2012 ... 2
    Replies:
    26
    Views:
    10,641
    CatBuilder
    Apr 6, 2012
  19. bob the builder

    General comments

    bob the builder, Aug 2, 2009 ... 2 3 4
    Replies:
    45
    Views:
    10,637
    bob the builder
    Nov 17, 2009
  20. tamkvaitis

    Tornado to performance trimaran conversion

    tamkvaitis, Nov 18, 2009 ... 2
    Replies:
    21
    Views:
    10,623
    dantnz
    Nov 27, 2012
  21. spidennis

    Biplane AeroRig Cat?

    spidennis, Mar 3, 2012 ... 2 3
    Replies:
    34
    Views:
    10,614
    rob denney
    Mar 24, 2012
  22. Doug Lord

    2017 Everglades Challenge

    Doug Lord, Mar 1, 2017 ... 2 3 4
    Replies:
    48
    Views:
    10,595
    hoytedow
    Mar 30, 2017
  23. Doug Lord

    Rave V Foiling Trimaran.

    Doug Lord, Dec 9, 2014 ... 2 3
    Replies:
    41
    Views:
    10,584
    Doug Lord
    Aug 24, 2016
  24. Richard Woods

    Carbon masts and lightning

    Richard Woods, Apr 10, 2009 ... 2
    Replies:
    24
    Views:
    10,580
    bruceb
    Apr 28, 2009
  25. Corley

    Race to Alaska and a listing of race entrants so far

    Corley, Apr 6, 2015 ... 6 7 8
    Replies:
    110
    Views:
    10,579
    cavalier mk2
    Jun 22, 2015
  26. CatBuilder

    Lightest Tender/Dinghy/Dink to Carry 6 pax plus luggage?

    CatBuilder, Aug 23, 2010 ... 2 3 4
    Replies:
    56
    Views:
    10,576
    CatBuilder
    May 7, 2011
  27. c_spray

    biplane rig on a C cat

    c_spray, Jun 17, 2004
    Replies:
    11
    Views:
    10,551
    tspeer
    Oct 30, 2005
  28. rapscallion

    Twiggy MKIII

    rapscallion, Feb 5, 2015 ... 2 3
    Replies:
    41
    Views:
    10,550
    oldsailor7
    Jun 13, 2016
  29. Doug Lord

    Trimaran Turning Radius: Ama Position

    Doug Lord, Jun 27, 2012 ... 3 4 5
    Replies:
    69
    Views:
    10,546
    Whatsisname
    Jul 12, 2012
  30. 2far2drive

    Strike 18 Trimaran

    2far2drive, Oct 13, 2014 ... 2
    Replies:
    18
    Views:
    10,540
    2far2drive
    May 5, 2015
  31. Texas-Tri

    New folding mechanism for old Texas Trimaran

    Texas-Tri, Sep 27, 2007 ... 2
    Replies:
    17
    Views:
    10,503
    bruceb
    Jan 18, 2010
  32. Corley

    TC601 trimaran design by Tim Clissold

    Corley, Apr 29, 2015 ... 2 3 4
    Replies:
    49
    Views:
    10,499
    waynemarlow
    Sep 17, 2015
  33. Nordic Cat

    Submerged transoms give higher speeds?

    Nordic Cat, May 18, 2008 ... 2 3
    Replies:
    43
    Views:
    10,491
    Nordic Cat
    Oct 17, 2008
  34. valery gaulin

    Single main sail with unstayed mast on cruising catamaran?

    valery gaulin, Jan 5, 2017 ... 2 3
    Replies:
    31
    Views:
    10,437
    Cain
    Dec 30, 2017
  35. ricardoribeiro

    tiki 21

    ricardoribeiro, Dec 7, 2009 ... 2 3
    Replies:
    38
    Views:
    10,434
    sngatlanta
    Jan 1, 2010
  36. Corley

    Lex Nicol, did he ever create any stock plans?

    Corley, Mar 24, 2010 ... 2
    Replies:
    21
    Views:
    10,413
    Corley
    May 13, 2012
  37. Chris Ostlind

    New Trimaran/Skiff Design

    Chris Ostlind, Feb 22, 2009 ... 2
    Replies:
    21
    Views:
    10,399
    johnelliott24
    Mar 27, 2009
  38. JCD

    Personal Offshore Catamaran Design

    JCD, Jul 4, 2006 ... 2 3 4
    Replies:
    45
    Views:
    10,397
    fburton
    Jul 12, 2006
  39. Bill Dunn

    Tremolino back in Production

    Bill Dunn, Oct 8, 2006
    Replies:
    12
    Views:
    10,301
    Momo2000
    Apr 10, 2007
  40. Steve W

    outboard power on larger cruising cats

    Steve W, Aug 14, 2016 ... 4 5 6
    Replies:
    75
    Views:
    10,289
    Steve W
    Sep 14, 2016
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