Boat Design

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

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  1. MYD

    5.5m keeldesign

    MYD, Nov 25, 2022
    Replies:
    8
    Views:
    1,078
    jehardiman
    Nov 28, 2022
  2. DCockey

    van Oossanen papers and publications - free download

    DCockey, Nov 16, 2018
    Replies:
    5
    Views:
    2,080
    rxcomposite
    Nov 28, 2022
  3. BobBill

    Need some Advice

    BobBill, Nov 19, 2022
    Replies:
    7
    Views:
    1,025
    BobBill
    Nov 29, 2022
  4. MarkOHara

    Splashing the 'ORCA'

    MarkOHara, Nov 3, 2021 ... 2
    Replies:
    18
    Views:
    4,581
    Eric Fernald
    Nov 29, 2022
  5. peter radclyffe

    HDPE

    peter radclyffe, Nov 29, 2022
    Replies:
    1
    Views:
    743
    bajansailor
    Nov 29, 2022
  6. Howsounder

    Hull vane...hydrofoil for a semi displacement cruiser

    Howsounder, Nov 28, 2022
    Replies:
    11
    Views:
    1,663
    Howsounder
    Dec 1, 2022
  7. zpaddyz

    From idea to build

    zpaddyz, Dec 1, 2022
    Replies:
    7
    Views:
    1,084
    messabout
    Dec 2, 2022
  8. SeanL

    A question about hull shape on a sail boat

    SeanL, Nov 24, 2022 ... 2
    Replies:
    17
    Views:
    2,519
    Paul Scott
    Dec 3, 2022
  9. RSD

    Disadvantages of RIB's?

    RSD, Dec 1, 2022 ... 2
    Replies:
    16
    Views:
    2,310
    RSD
    Dec 3, 2022
  10. tom power

    Chainplates for a Fiorentino shark drogue

    tom power, Jul 28, 2022
    Replies:
    12
    Views:
    1,753
    Ad Hoc
    Dec 3, 2022
  11. Daan

    Small gearbox

    Daan, Sep 7, 2020 ... 2 3 4
    Replies:
    52
    Views:
    9,159
    member 69256
    Dec 7, 2022
  12. dustman

    Is calculating stability for a catamaran really this easy?

    dustman, Dec 6, 2022
    Replies:
    10
    Views:
    1,587
    Ad Hoc
    Dec 7, 2022
  13. Titu

    Critique about this boat design?

    Titu, Dec 7, 2022
    Replies:
    5
    Views:
    1,090
    sharpii2
    Dec 11, 2022
  14. dustman

    Critique my sail design?

    dustman, Nov 27, 2022 ... 2
    Replies:
    22
    Views:
    2,342
    sharpii2
    Dec 11, 2022
  15. msaxton

    french style sailing barge

    msaxton, Feb 1, 2014 ... 7 8 9
    Replies:
    123
    Views:
    47,464
    sharpii2
    Dec 11, 2022
  16. zstine

    Boat Designer License or Certification Requirements?

    zstine, Dec 6, 2022
    Replies:
    8
    Views:
    1,929
    Ike
    Dec 12, 2022
  17. Leopard

    Sea State, Vessel Depth, Freeboard

    Leopard, Dec 12, 2022
    Replies:
    2
    Views:
    989
    jehardiman
    Dec 12, 2022
  18. Terje Dahl

    Swing keel not vertical

    Terje Dahl, Nov 30, 2022
    Replies:
    6
    Views:
    1,252
    wet feet
    Dec 14, 2022
  19. Silky250

    Anybody know anything about this boat?

    Silky250, Mar 5, 2015 ... 2
    Replies:
    16
    Views:
    4,261
    Phil_B
    Dec 14, 2022
  20. slboatdesing

    Electric Leisure Boat Design II

    slboatdesing, Aug 9, 2022 ... 5 6 7
    Replies:
    102
    Views:
    10,721
    Paul Scott
    Dec 14, 2022
  21. Alias_Go

    10m LOA Electric Powered Trimaran for Flatwater

    Alias_Go, Aug 3, 2021
    Replies:
    11
    Views:
    2,280
    Paul Scott
    Dec 15, 2022
  22. AskingAboutLifeboat

    What could be done with an enclosed lifeboat?

    AskingAboutLifeboat, Dec 25, 2019 ... 3 4 5
    Replies:
    66
    Views:
    36,124
    daniTS
    Dec 15, 2022
  23. wirescale

    Houseboat floats

    wirescale, Oct 30, 2022 ... 2
    Replies:
    17
    Views:
    3,656
    messabout
    Dec 15, 2022
  24. dustman

    Why do some Wharrams have added keel towards the back?

    dustman, Dec 20, 2022
    Replies:
    5
    Views:
    971
    skaraborgcraft
    Dec 21, 2022
  25. designnovice

    Who is Athol Burns?

    designnovice, Jun 30, 2011 ... 4 5 6
    Replies:
    87
    Views:
    36,088
    John Manning
    Dec 27, 2022
  26. lvabd

    Cheapest DIY Bugout Sailboat

    lvabd, Dec 11, 2022 ... 2 3 4
    Replies:
    49
    Views:
    4,445
    skaraborgcraft
    Dec 27, 2022
  27. Squidly-Diddly

    screws in plastic SOT for side carry handles spinning. (see pics)

    Squidly-Diddly, Dec 24, 2022
    Replies:
    13
    Views:
    1,103
    BlueBell
    Dec 28, 2022
  28. socalspearit

    26' power trimaran, trawler style family boat

    socalspearit, Oct 3, 2022 ... 2
    Replies:
    16
    Views:
    2,177
    fallguy
    Dec 28, 2022
  29. Damon7

    Help understanding hull design and sea capabilities of new boat

    Damon7, Dec 27, 2022
    Replies:
    7
    Views:
    1,306
    Damon7
    Dec 29, 2022
  30. Akamuana

    steel reinforced fiberglass?

    Akamuana, Dec 29, 2022
    Replies:
    5
    Views:
    1,091
    kapnD
    Dec 29, 2022
  31. dustman

    Biplane rig, differential thrust for self steering?

    dustman, Dec 26, 2022
    Replies:
    5
    Views:
    951
    sharpii2
    Jan 1, 2023
  32. JCL Design

    Sizing a hotwater and pressure tank for a ship

    JCL Design, Dec 30, 2022
    Replies:
    2
    Views:
    650
    Howlandwoodworks
    Jan 1, 2023
  33. RSD

    Poleson Marine diving vessel

    RSD, Dec 8, 2022 ... 2
    Replies:
    20
    Views:
    2,694
    gonzo
    Jan 2, 2023
  34. Josh Sorrell

    Pontoon Duck Blind Boat

    Josh Sorrell, Jan 1, 2023
    Replies:
    5
    Views:
    1,184
    Josh Sorrell
    Jan 3, 2023
  35. tpelle

    Sitting Here Watching It Rain - Had A Stupid Idea

    tpelle, Dec 31, 2022
    Replies:
    6
    Views:
    948
    tpelle
    Jan 3, 2023
  36. Squidly-Diddly

    I'm gonna make a one man microboat/car roof box w/Shapple icesled

    Squidly-Diddly, Jun 3, 2022
    Replies:
    4
    Views:
    1,228
    BlueBell
    Jan 4, 2023
  37. Chris Chadwick

    HDPE pontoons

    Chris Chadwick, Jul 19, 2022 ... 2 3
    Replies:
    31
    Views:
    5,819
    indianbayjoe
    Jan 4, 2023
  38. Toothbrush

    Bp delta charts and selecting the right propeller

    Toothbrush, Nov 13, 2017
    Replies:
    5
    Views:
    4,467
    fallguy
    Jan 6, 2023
  39. Jack of all Trades

    Redesigned Barge 26 by Tad Robert's

    Jack of all Trades, Jan 4, 2023
    Replies:
    3
    Views:
    1,112
    Jack of all Trades
    Jan 6, 2023
  40. Jack of all Trades

    ICW & Great Loop Boat for two people

    Jack of all Trades, Jan 7, 2023
    Replies:
    10
    Views:
    1,047
    rberrey
    Jan 9, 2023
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