Boat Design

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

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  1. JohnGB

    Is a walkway around a deckhouse always necessary?

    JohnGB, Sep 30, 2022 ... 2
    Replies:
    27
    Views:
    582
    Alan Cattelliot
    Oct 7, 2022 at 4:22 PM
  2. Shai De

    Help needed in building the first boat (pedal powered)

    Shai De, Oct 3, 2022 at 11:05 AM ... 2
    Replies:
    16
    Views:
    416
    Tiny Turnip
    Oct 7, 2022 at 3:01 PM
  3. ToMy

    Why are larger hulls heavier than smaller ones?

    ToMy, Oct 7, 2022 at 10:54 AM
    Replies:
    3
    Views:
    71
    John Rivers
    Oct 7, 2022 at 2:08 PM
  4. John Rivers

    Complex bowsprits on reversed bows

    John Rivers, Oct 4, 2022 at 3:51 PM ... 2
    Replies:
    15
    Views:
    273
    John Rivers
    Oct 7, 2022 at 2:04 PM
  5. Squidly-Diddly

    Wave-peircing & Axe bows, how about Saw bows?

    Squidly-Diddly, Aug 30, 2020
    Replies:
    11
    Views:
    2,466
    John Rivers
    Oct 7, 2022 at 1:07 PM
  6. jehardiman

    Submersible Superyacht

    jehardiman, Oct 6, 2022 at 5:43 PM
    Replies:
    5
    Views:
    125
    clmanges
    Oct 7, 2022 at 11:37 AM
  7. Tundratom

    Bertram 20 Engine Bay

    Tundratom, Sep 27, 2022 ... 2
    Replies:
    21
    Views:
    470
    Tundratom
    Oct 7, 2022 at 8:49 AM
  8. slboatdesing

    Electric Leisure Boat Design II

    slboatdesing, Aug 9, 2022 ... 5 6 7
    Replies:
    100
    Views:
    4,298
    slboatdesing
    Oct 7, 2022 at 5:16 AM
  9. NAstudent

    Hi, Anyone know estimate values of coefficient such as Cb, Cp, Cm, and etc for Yacht.

    NAstudent, Oct 6, 2022 at 8:22 PM
    Replies:
    2
    Views:
    88
    bajansailor
    Oct 6, 2022 at 10:28 PM
  10. BMP

    X-Bow on small craft

    BMP, Jul 22, 2022
    Replies:
    9
    Views:
    518
    John Rivers
    Oct 5, 2022 at 7:38 PM
  11. Guest625101138

    Pedal Powered Boats

    Guest625101138, Jul 14, 2008 ... 145 146 147
    Replies:
    2,204
    Views:
    949,646
    mitchgrunes
    Oct 5, 2022 at 4:15 PM
  12. FMSki

    Wake gates for Ski Nautique HydroGate, lifting pads

    FMSki, Oct 5, 2022 at 12:10 PM
    Replies:
    0
    Views:
    76
    FMSki
    Oct 5, 2022 at 12:10 PM
  13. schakel

    A ground effect boat. Not the first and certainly not the last

    schakel, Sep 26, 2022
    Replies:
    14
    Views:
    507
    S V
    Oct 5, 2022 at 7:05 AM
  14. John Rivers

    Arm stress equations

    John Rivers, Oct 4, 2022 at 12:25 PM
    Replies:
    6
    Views:
    140
    John Rivers
    Oct 4, 2022 at 6:46 PM
  15. FMSki

    1997 Ski Nautique Resto-mod project

    FMSki, Oct 2, 2022 at 7:14 PM
    Replies:
    1
    Views:
    127
    gonzo
    Oct 4, 2022 at 10:17 AM
  16. Benjamin L.

    Jet boat

    Benjamin L., Oct 3, 2022 at 2:30 PM
    Replies:
    3
    Views:
    171
    bajansailor
    Oct 4, 2022 at 9:04 AM
  17. socalspearit

    Custom 19' all weather, minimalist, strip plank composite 'go fast'

    socalspearit, Sep 2, 2021 ... 13 14 15
    Replies:
    213
    Views:
    12,150
    socalspearit
    Oct 4, 2022 at 5:33 AM
  18. socalspearit

    26' power trimaran, trawler style family boat

    socalspearit, Oct 3, 2022 at 7:46 AM
    Replies:
    4
    Views:
    203
    Alan Cattelliot
    Oct 4, 2022 at 4:37 AM
  19. zstine

    Brain Teaser: Renewable Powered ‘Flying’ Yacht

    zstine, Mar 31, 2022 ... 2 3
    Replies:
    39
    Views:
    1,876
    tmz
    Oct 4, 2022 at 1:58 AM
  20. nickrj

    Design / small launch based around SABB diesel

    nickrj, Oct 3, 2022 at 6:06 PM
    Replies:
    2
    Views:
    117
    nickrj
    Oct 3, 2022 at 11:50 PM
  21. jdray

    Small Inboard Electric Lake Boat

    jdray, Sep 16, 2022
    Replies:
    8
    Views:
    412
    jdray
    Oct 3, 2022 at 11:09 PM
  22. Richard Gaysowski

    Can you ID this small 1960’s/70’s sailboat?

    Richard Gaysowski, Jul 16, 2022 ... 2 3
    Replies:
    30
    Views:
    1,672
    Tops
    Oct 3, 2022 at 7:59 PM
  23. CaptChap

    Bar Island Skiff - Hull flip done

    CaptChap, Oct 3, 2022 at 9:50 AM
    Replies:
    1
    Views:
    110
    bajansailor
    Oct 3, 2022 at 2:31 PM
  24. Benjamin L.

    Use a Snowmobile engine to power a boat with turbine?

    Benjamin L., Sep 22, 2022
    Replies:
    8
    Views:
    416
    comfisherman
    Oct 2, 2022 at 11:33 PM
  25. tpenfield

    Transom Pods - Flotation and Extended Planing Surface

    tpenfield, Aug 16, 2022 ... 2 3
    Replies:
    33
    Views:
    1,688
    tpenfield
    Oct 1, 2022 at 12:38 PM
  26. Rounak Saha Niloy

    Motion Sickness Incidence Index

    Rounak Saha Niloy, Sep 18, 2022
    Replies:
    6
    Views:
    390
    Skyak
    Sep 30, 2022
  27. Alexmach1

    Aluminum 8 meter beast

    Alexmach1, Sep 30, 2022
    Replies:
    0
    Views:
    126
    Alexmach1
    Sep 30, 2022
  28. CaptChap

    New skiff - bottom with keel/rubbing strakes

    CaptChap, Sep 13, 2022
    Replies:
    9
    Views:
    387
    CaptChap
    Sep 29, 2022
  29. LePrince

    Ship shape Vs Chain

    LePrince, Sep 25, 2022
    Replies:
    8
    Views:
    399
    Kreso
    Sep 29, 2022
  30. tmz

    Crossover Yacht (beachable houseboat)

    tmz, Sep 27, 2022
    Replies:
    1
    Views:
    210
    fallguy
    Sep 27, 2022
  31. zstine

    Design Contrats And Intelectual Property Ownership

    zstine, Sep 23, 2022 ... 2
    Replies:
    20
    Views:
    691
    rxcomposite
    Sep 26, 2022
  32. Leopard

    Sand Blasting Machine

    Leopard, Sep 25, 2022
    Replies:
    2
    Views:
    184
    rocco611
    Sep 25, 2022
  33. slboatdesing

    Can wheeled vehicle run on the surface of water at high speed?

    slboatdesing, Aug 22, 2022 ... 3 4 5
    Replies:
    64
    Views:
    2,364
    slboatdesing
    Sep 25, 2022
  34. Leopard

    Winch Machine for Docking Undocking

    Leopard, Sep 24, 2022
    Replies:
    1
    Views:
    186
    jehardiman
    Sep 24, 2022
  35. Furio

    GRP top hat stiffener section modulus design

    Furio, Sep 22, 2022
    Replies:
    6
    Views:
    296
    TANSL
    Sep 24, 2022
  36. Squidly-Diddly

    how do we save Global Dream II from breakers?....

    Squidly-Diddly, Sep 11, 2022 ... 2
    Replies:
    25
    Views:
    1,006
    jehardiman
    Sep 23, 2022
  37. NAstudent

    yacht deadweight coefficient

    NAstudent, Sep 22, 2022
    Replies:
    4
    Views:
    223
    Rumars
    Sep 22, 2022
  38. Jason Rodgers

    Overhead void filling

    Jason Rodgers, Sep 21, 2022
    Replies:
    3
    Views:
    203
    fallguy
    Sep 22, 2022
  39. Swiftsure33

    Spreader Angle for External Chainplates

    Swiftsure33, Nov 14, 2017
    Replies:
    8
    Views:
    2,256
    Ajg2199
    Sep 21, 2022
  40. JAXMKE

    Thoughts or Counsel Solicited-Fisher Potter Ketch Motorsailer Converted to Outboard Trawler

    JAXMKE, May 12, 2018
    Replies:
    9
    Views:
    2,615
    Bobhjax
    Sep 18, 2022
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