Boat Design

Discuss boat design concepts, projects, plans, reviews, resources, and general design topics.

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  1. Ward

    simple catamaran hull design

    Ward, May 6, 2003
    Replies:
    14
    Views:
    63,840
    brian eiland
    Aug 6, 2004
  2. thuffam

    How to calculate how much weight a hull can carry?

    thuffam, Nov 19, 2008 ... 2
    Replies:
    16
    Views:
    63,802
    Larry Bartlett
    Feb 28, 2016
  3. Yobarnacle

    Gravy Boat, Custom Albin 25

    Yobarnacle, Feb 5, 2016 ... 25 26 27
    Replies:
    400
    Views:
    63,484
    Yobarnacle
    Sep 14, 2020
  4. Dook

    Modern Aircraft Carrier

    Dook, Feb 19, 2005 ... 6 7 8
    Replies:
    105
    Views:
    63,059
    eponodyne
    Oct 20, 2007
  5. jacklynfong

    shrouded propeller vs nonshrouded opeller

    jacklynfong, Oct 29, 2008 ... 2 3 4
    Replies:
    49
    Views:
    62,857
    DCockey
    Sep 11, 2019
  6. RonKMiller

    A folding travel trailer on top of a pontoon boat~

    RonKMiller, Sep 1, 2010 ... 2 3 4
    Replies:
    56
    Views:
    62,725
    davidjohn
    Apr 9, 2013
  7. Boston
    Locked

    Ok complete change of plan

    Boston, May 4, 2010 ... 24 25 26
    Replies:
    384
    Views:
    62,431
    rasorinc
    Jan 10, 2011
  8. Steve2ManyBoats

    Maximum simple trailerable power cruiser - looking for ideas

    Steve2ManyBoats, Sep 15, 2010 ... 6 7 8
    Replies:
    112
    Views:
    62,082
    FAST FRED
    Jun 29, 2012
  9. lmfoils

    Easter project 2009: Hydrofoil!

    lmfoils, Apr 19, 2009 ... 2 3
    Replies:
    44
    Views:
    61,568
    lmfoils
    Oct 25, 2012
  10. mwatts

    Hull design for a small displacement boat

    mwatts, Jul 31, 2009 ... 4 5 6
    Replies:
    84
    Views:
    61,388
    mwatts
    Aug 20, 2009
  11. 65chill

    Can i use a motorcycle engine?

    65chill, Dec 3, 2008 ... 2 3 4
    Replies:
    45
    Views:
    61,173
    luppyrasi
    Jun 12, 2009
  12. thedutchtouch

    smallest safe boat for intracoastal waterway trips?

    thedutchtouch, Aug 24, 2011
    Replies:
    13
    Views:
    60,616
    CatBuilder
    Aug 24, 2011
  13. westlawn5554X

    Pirate ship Blue Plan?

    westlawn5554X, Mar 27, 2007 ... 2 3
    Replies:
    32
    Views:
    60,185
    PAR
    May 12, 2007
  14. gudway

    Looking for information on keel placement, design, sizing...

    gudway, Nov 14, 2004
    Replies:
    1
    Views:
    60,021
    PAR
    Nov 14, 2004
  15. cthippo

    Skin on frame dory - why not?

    cthippo, Mar 21, 2011 ... 2 3
    Replies:
    38
    Views:
    58,275
    Wavewacker
    Sep 9, 2013
  16. brian eiland

    World's Largest Cargo Ship

    brian eiland, Aug 15, 2007 ... 2
    Replies:
    20
    Views:
    58,034
    ssnoopys
    Sep 20, 2007
  17. Wynand N

    Aluminium vs Steel

    Wynand N, Dec 3, 2004 ... 4 5 6
    Replies:
    83
    Views:
    57,895
    dskira
    Aug 25, 2013
  18. gregs

    floating boat lift

    gregs, May 16, 2007 ... 2 3 4
    Replies:
    48
    Views:
    57,517
    CDK
    Jul 26, 2009
  19. Milan

    Poor man’s passagemaker

    Milan, Sep 24, 2010 ... 11 12 13
    Replies:
    184
    Views:
    57,486
    masalai
    Dec 4, 2010
  20. viking north

    Reverse Engineering (conversions And Modifications)

    viking north, Dec 25, 2010 ... 19 20 21
    Replies:
    302
    Views:
    57,088
    viking north
    Feb 11, 2011
  21. livinlife

    houseboat pontoon design

    livinlife, Jan 10, 2010 ... 2
    Replies:
    21
    Views:
    56,671
    yurmahm
    Jan 21, 2014
  22. cassanova

    1969 orlando clipper

    cassanova, Jul 23, 2007 ... 2 3
    Replies:
    39
    Views:
    56,499
    PAR
    Jun 17, 2016
  23. tonydignity

    Here's The true Sea Sled Story, circa1985

    tonydignity, Aug 23, 2004 ... 6 7 8
    Replies:
    116
    Views:
    56,208
    Mr Efficiency
    Feb 29, 2020
  24. small cat

    Small Power Cat Design

    small cat, Nov 22, 2002 ... 2
    Replies:
    21
    Views:
    55,962
    Ilan Voyager
    Aug 26, 2004
  25. stonedpirate

    Rethinking the smallest boat circumnavigation

    stonedpirate, Feb 17, 2012 ... 17 18 19
    Replies:
    271
    Views:
    55,696
    BertKu
    Apr 19, 2015
  26. Seagem

    What's the best shape for a fast & efficient catamaran hull?...

    Seagem, Jan 21, 2009 ... 2
    Replies:
    23
    Views:
    55,419
    robint777
    Jul 14, 2013
  27. Iya

    Luhrs T-29 (1995) diesel inboard converted to outboard

    Iya, Sep 19, 2004 ... 2
    Replies:
    16
    Views:
    55,188
    Longie5747
    Sep 1, 2018
  28. Barbaros

    Free Vessel PLANS

    Barbaros, Jan 26, 2008 ... 2 3 4
    Replies:
    49
    Views:
    54,236
    Tcubed
    Jan 15, 2009
  29. Vibtor

    Stepped hulls

    Vibtor, May 1, 2005 ... 5 6 7
    Replies:
    94
    Views:
    54,183
    RANCHI OTTO
    Aug 15, 2014
  30. ryan808

    Where to start on a pedal powered boat?

    ryan808, Aug 4, 2008 ... 3 4 5
    Replies:
    67
    Views:
    54,176
    magnus
    Jun 9, 2011
  31. Rob Moody

    Required Bollard Pull for a Harbour Tug

    Rob Moody, Oct 12, 2008 ... 2
    Replies:
    17
    Views:
    54,085
    Agung Taufik
    Oct 10, 2017
  32. Guest

    Modern paddlewheels

    Guest, Dec 23, 2003 ... 8 9 10
    Replies:
    137
    Views:
    53,866
    Jeremy Harris
    Jun 17, 2013
  33. zamibc

    Trying to compare Jeanneau 54DS & Beneteau 57

    zamibc, Oct 9, 2004 ... 2 3 4
    Replies:
    56
    Views:
    53,782
    jgreenwood
    Jun 24, 2009
  34. rezeuc

    pontoon houseboat

    rezeuc, Aug 30, 2011
    Replies:
    8
    Views:
    53,388
    BlueBell
    Dec 19, 2019
  35. abmayfield

    Weight Capacity?? - New Boat User

    abmayfield, Aug 3, 2011
    Replies:
    10
    Views:
    53,172
    Wynand N
    Aug 5, 2011
  36. Fernando

    Displacement vs Semidisplacement vs Planing

    Fernando, Nov 1, 2001
    Replies:
    10
    Views:
    52,666
    Schoonertack
    Dec 19, 2002
  37. ericrunner

    pontoon powered by sea doo ( jet ski )

    ericrunner, Sep 11, 2010 ... 2 3
    Replies:
    35
    Views:
    52,448
    ratherbeboating
    Dec 4, 2021
  38. Gannet

    Question about WWII German U-boat bow planes

    Gannet, Oct 22, 2009 ... 3 4 5
    Replies:
    62
    Views:
    52,009
    apex1
    Oct 30, 2009
  39. malan conradie

    Hydrofoil Supported Catamaran designs

    malan conradie, Feb 3, 2008 ... 2 3 4
    Replies:
    51
    Views:
    51,964
    nautica
    Jun 25, 2013
  40. bridalbonnie

    Need Chinese Junk Hull Boat Plans

    bridalbonnie, Aug 27, 2006 ... 2 3
    Replies:
    42
    Views:
    51,502
    Fernao
    Mar 9, 2014
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