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Forum: Multihull Design Forum

Discuss the design characteristics of multihulls

  1. Preparing "Make O'Break" for micro cruising Greece

    Started by rael dobkins, 24th September 2019 07:28 PM
    • Replies: 0
    • Views: 385
    24th September 2019, 07:28 PM Go to last post
    • Replies: 3
    • Views: 593
    16th September 2019, 11:52 AM Go to last post
  2. 50' Hybrid Diesel Electric Steel Catamaran

    Started by Caesar, 27th July 2012 05:10 PM
    2 Pages
    1 2
    • Replies: 20
    • Views: 18,011
    14th July 2018, 09:11 PM Go to last post
  3. How to build a hard-top

    Started by Aurora, 11th August 2013 11:20 AM
    • Replies: 17
    • Views: 9,966
    7th April 2018, 09:05 AM Go to last post
  4. Website for Bob Oram Designs

    Started by multihullsailor6, 5th November 2011 08:51 PM
    • Replies: 4
    • Views: 6,140
    25th March 2018, 06:57 PM Go to last post
  5. Hull Extensions

    Started by Southern Star, 2nd December 2011 01:27 PM
    3 Pages
    1 2 3
    • Replies: 54
    • Views: 26,223
    21st February 2018, 01:00 AM Go to last post
  6. A user friendly proa shunting rig.

    Started by rael dobkins, 18th February 2018 10:38 AM
    • Replies: 0
    • Views: 854
    18th February 2018, 10:38 AM Go to last post
  7. Bruce Harris Designs

    Started by Peter, 30th June 2017 11:51 AM
    • Replies: 0
    • Views: 1,257
    30th June 2017, 11:51 AM Go to last post
  8. Tennant Designs & Anthony Stanton

    Started by limecc, 10th May 2017 12:50 AM
    • Replies: 0
    • Views: 1,318
    10th May 2017, 12:50 AM Go to last post
  9. "Toe In" On Rudders?

    Started by catalac08, 16th February 2017 11:19 AM
    • Replies: 9
    • Views: 3,533
    22nd February 2017, 09:20 PM Go to last post
  10. Gemini's are Crap in Blue Water,

    Started by Mr B., 1st July 2012 03:48 AM
    4 Pages
    1 2 3 4
    • Replies: 60
    • Views: 73,052
    6th February 2017, 02:44 PM Go to last post
  11. Formulas, rules, and Benchmarks

    Started by BigCat, 11th August 2009 06:16 PM
    3 Pages
    1 2 3
    • Replies: 58
    • Views: 33,842
    29th February 2016, 11:11 PM Go to last post
  12. Must I Remove All the Assholes?

    Started by victor, 14th April 2013 09:52 PM
    • Replies: 15
    • Views: 8,045
    17th February 2016, 01:00 PM Go to last post
  13. Balkan Shipyards, going strong...

    Started by rael dobkins, 6th January 2016 08:38 PM
    • Replies: 0
    • Views: 1,612
    6th January 2016, 08:38 PM Go to last post
  14. Headroom in berth

    Started by quickcat49, 7th December 2015 04:34 PM
    • Replies: 0
    • Views: 1,805
    7th December 2015, 04:34 PM Go to last post
  15. Keel/hull build technique

    Started by BrianH, 13th November 2015 05:21 PM
    • Replies: 6
    • Views: 3,409
    14th November 2015, 01:00 PM Go to last post
  16. Pros&Cons of different Cat Rigs

    Started by Moonskater, 6th November 2015 04:38 PM
    • Replies: 0
    • Views: 1,911
    6th November 2015, 04:38 PM Go to last post
  17. SeaWind 1000/100XL Rudder Mold

    Started by victor, 12th September 2012 05:55 PM
    • Replies: 1
    • Views: 2,908
    13th October 2015, 11:49 PM Go to last post
  18. Bi-Rig Cats

    Started by multihullsailor6, 3rd January 2013 09:17 PM
    2 Pages
    1 2
    • Replies: 22
    • Views: 22,953
    28th September 2015, 10:43 AM Go to last post
  19. Skeg Design Query

    Started by catalac08, 13th September 2015 05:23 PM
    • Replies: 5
    • Views: 2,977
    15th September 2015, 12:48 PM Go to last post
  20. Crowther Twiggy

    Started by balance, 23rd December 2012 12:31 AM
    • Replies: 3
    • Views: 3,830
    23rd July 2015, 04:57 AM Go to last post
  21. Unsinkable? How, why?

    Started by HappyEnding, 2nd March 2013 12:05 PM
    3 Pages
    1 2 3
    • Replies: 42
    • Views: 20,614
    10th July 2015, 11:50 AM Go to last post
  22. Hull Release Party for Alpha 42

    Started by searenitysail, 28th January 2013 12:32 AM
    • Replies: 5
    • Views: 4,297
    23rd June 2015, 01:26 AM Go to last post
  23. Water Tight bulkheads?

    Started by HappyEnding, 5th February 2013 01:20 AM
    • Replies: 7
    • Views: 4,891
    26th May 2015, 07:02 AM Go to last post
  24. Wavepiercing Bows on Catamarans

    Started by multihullsailor6, 22nd November 2011 03:09 PM
    6 Pages
    1 2 3 4 5 ... 6
    • Replies: 102
    • Views: 53,660
    17th April 2015, 07:16 AM Go to last post
  25. Simply put, "More Speed"!

    Started by Moonskater, 5th February 2015 04:51 PM
    2 Pages
    1 2
    • Replies: 38
    • Views: 14,070
    14th April 2015, 01:08 PM Go to last post
  26. Twin Rudder Design

    Started by multihullsailor6, 16th February 2015 06:50 PM
    • Replies: 0
    • Views: 1,691
    16th February 2015, 06:50 PM Go to last post
  27. Thin hulls have less wave drag than fat ones. Are you sure?

    Started by dennisail, 24th June 2014 05:13 AM
    3 Pages
    1 2 3
    • Replies: 41
    • Views: 22,208
    13th January 2015, 09:09 AM Go to last post
  28. Prismatic Coefficient and getting wrapped around a wheel

    Started by DoubleDuty, 14th September 2009 11:27 PM
    4 Pages
    1 2 3 4
    • Replies: 68
    • Views: 36,452
    9th January 2015, 10:02 AM Go to last post
  29. Is anyone using Hydrogen or HHO in their engines?

    Started by CauliflowerEars, 25th June 2012 03:40 AM
    4 Pages
    1 2 3 4
    • Replies: 79
    • Views: 32,254
    13th November 2014, 05:17 PM Go to last post
  30. Gunboat 60 and Alpha 42 pics

    Started by searenitysail, 5th October 2014 05:12 AM
    • Replies: 4
    • Views: 3,763
    7th October 2014, 02:53 PM Go to last post
  31. Power Cat 18MPG Interesting?

    Started by victor, 17th December 2013 05:42 PM
    3 Pages
    1 2 3
    • Replies: 49
    • Views: 22,420
    14th August 2014, 12:04 PM Go to last post
  32. catamarans & nacelle pod propulsion

    Started by oceansurfer, 12th August 2014 04:52 PM
    • Replies: 2
    • Views: 3,012
    12th August 2014, 11:03 PM Go to last post
  33. New Manta 46 catamaran in design/development

    Started by colemj, 30th April 2014 03:52 AM
    • Replies: 4
    • Views: 4,712
    17th June 2014, 04:00 PM Go to last post
  34. Do immersed transoms create less drag?

    Started by Nordic, 15th October 2008 05:39 PM
    8 Pages
    1 2 3 4 5 ... 8
    • Replies: 148
    • Views: 48,771
    23rd May 2014, 09:25 PM Go to last post
  35. Starting a multihull project

    Started by Defyant, 31st March 2014 12:16 AM
    • Replies: 11
    • Views: 5,768
    5th April 2014, 11:32 AM Go to last post
  36. request for info tri vrs cat

    Started by Grizwald, 17th December 2013 06:12 PM
    2 Pages
    1 2
    • Replies: 38
    • Views: 12,926
    22nd February 2014, 09:04 PM Go to last post
  37. Prout 50 Quasar capacities

    Started by tolly, 12th January 2014 11:02 PM
    • Replies: 0
    • Views: 1,958
    12th January 2014, 11:02 PM Go to last post
  38. What is the make of this catamaran?

    Started by dabbler, 2nd January 2014 05:43 PM
    • Replies: 6
    • Views: 4,007
    4th January 2014, 03:17 PM Go to last post
  39. Lagoon 421 fuel tank material

    Started by msmith132, 18th October 2013 11:46 PM
    • Replies: 1
    • Views: 3,749
    19th October 2013, 01:05 AM Go to last post

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