Boat Design

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

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  1. rwatson

    Everything Old is new again - Flettner Rotor Ship is launched

    rwatson, Sep 1, 2008 ... 38 39 40
    Replies:
    587
    Views:
    177,162
    rwatson
    Jan 28, 2023 at 8:15 PM
  2. newbeeee

    SWATH design ideas

    newbeeee, Aug 4, 2022 ... 2 3
    Replies:
    31
    Views:
    2,049
    bajansailor
    Jan 28, 2023 at 6:16 PM
  3. BobBill

    Wire Foam Cutter Using Train Transformer

    BobBill, Jan 28, 2023 at 10:36 AM
    Replies:
    0
    Views:
    63
    BobBill
    Jan 28, 2023 at 10:36 AM
  4. naserrishehri

    Piping route design

    naserrishehri, Jan 13, 2023
    Replies:
    3
    Views:
    264
    Geob
    Jan 28, 2023 at 2:51 AM
  5. poubj

    Skeg Repair/Reinforcement Design - aluminum sailboat

    poubj, Jan 27, 2023 at 9:44 AM
    Replies:
    1
    Views:
    130
    messabout
    Jan 27, 2023 at 6:15 PM
  6. DogCavalry

    Sea Sled Madness: It's Incurable

    DogCavalry, Dec 22, 2022 ... 5 6 7
    Replies:
    102
    Views:
    3,068
    fallguy
    Jan 27, 2023 at 10:46 AM
  7. Leopard

    End Stiffener Condition

    Leopard, Jan 26, 2023 at 6:22 AM
    Replies:
    2
    Views:
    168
    jehardiman
    Jan 27, 2023 at 2:56 AM
  8. George Rosu

    Help with construction elements

    George Rosu, Jan 25, 2023 at 6:06 PM
    Replies:
    8
    Views:
    279
    Ad Hoc
    Jan 26, 2023 at 6:40 PM
  9. OsirisLives

    Boat ID

    OsirisLives, Jan 26, 2023 at 12:51 PM
    Replies:
    1
    Views:
    96
    gonzo
    Jan 26, 2023 at 5:13 PM
  10. Titu

    Air Cavity rail beside spray rails?

    Titu, Jan 26, 2023 at 9:43 AM
    Replies:
    1
    Views:
    112
    gonzo
    Jan 26, 2023 at 9:51 AM
  11. Seth211

    Finding plans based on specifics

    Seth211, Jan 18, 2023 ... 2 3 4
    Replies:
    53
    Views:
    1,378
    Seth211
    Jan 25, 2023 at 5:49 PM
  12. pironiero

    Does lifting the keel going downwind makes noticeable difference?

    pironiero, Nov 3, 2020 ... 2 3
    Replies:
    34
    Views:
    4,723
    starsconty
    Jan 24, 2023 at 8:52 AM
  13. James Wellington

    Sailboat, motorsailor to motorboat?

    James Wellington, Jan 23, 2023 at 10:38 AM
    Replies:
    3
    Views:
    181
    James Wellington
    Jan 24, 2023 at 7:27 AM
  14. RSD

    Using rectangular aluminium tubing for the framing?

    RSD, Jan 20, 2023
    Replies:
    12
    Views:
    390
    Ad Hoc
    Jan 22, 2023 at 7:22 PM
  15. Squidly-Diddly

    what % of broken ice is shoved under the shelf by Icebreaker ships?

    Squidly-Diddly, Jan 19, 2023
    Replies:
    8
    Views:
    320
    Squidly-Diddly
    Jan 22, 2023 at 5:42 PM
  16. An_Idiot

    Amphibious Atlantic Cruiser

    An_Idiot, Jan 21, 2023
    Replies:
    6
    Views:
    324
    sharpii2
    Jan 22, 2023 at 6:57 AM
  17. Leopard

    Construction Idea of Curved Plate

    Leopard, Jan 22, 2023 at 2:04 AM
    Replies:
    2
    Views:
    264
    Leopard
    Jan 22, 2023 at 5:20 AM
  18. Johannes2021

    Reversible connection of structural fiberglass components

    Johannes2021, Jan 16, 2023
    Replies:
    12
    Views:
    410
    Johannes2021
    Jan 21, 2023
  19. Paul Scott

    Skinny Class 40

    Paul Scott, Jan 16, 2023 ... 2 3
    Replies:
    37
    Views:
    839
    skaraborgcraft
    Jan 20, 2023
  20. hunterlee

    To ship Designer, USA

    hunterlee, Jan 16, 2023
    Replies:
    7
    Views:
    442
    bajansailor
    Jan 20, 2023
  21. Vendy

    Bogging chines and corematt function ?

    Vendy, Jan 16, 2023
    Replies:
    1
    Views:
    214
    rxcomposite
    Jan 18, 2023
  22. James Wellington

    fishing trawler to pleasure conversion

    James Wellington, Dec 27, 2022 ... 5 6 7
    Replies:
    99
    Views:
    2,287
    comfisherman
    Jan 17, 2023
  23. mitch184

    Offshore/Outboard Bracket Design Critiques

    mitch184, Jan 11, 2023 ... 2 3
    Replies:
    36
    Views:
    1,091
    mitch184
    Jan 17, 2023
  24. peperoni

    Small boat design

    peperoni, Jan 4, 2023
    Replies:
    10
    Views:
    790
    gonzo
    Jan 16, 2023
  25. DaveA

    Built-Rite Boat

    DaveA, Aug 20, 2009
    Replies:
    3
    Views:
    3,100
    MikeyBiker
    Jan 16, 2023
  26. Shan

    Built Rite late 50s/early 60s

    Shan, Dec 3, 2022
    Replies:
    4
    Views:
    462
    MikeyBiker
    Jan 16, 2023
  27. RSD

    Tips for building an Aluminium boat so as it is quiet?

    RSD, Jan 15, 2023
    Replies:
    14
    Views:
    455
    RSD
    Jan 15, 2023
  28. Leopard

    Air Compressor for Marine Engine

    Leopard, Jan 15, 2023
    Replies:
    4
    Views:
    201
    Rumars
    Jan 15, 2023
  29. Furkan

    Designing your own mini yacht

    Furkan, Nov 24, 2021 ... 2
    Replies:
    17
    Views:
    2,378
    tane
    Jan 15, 2023
  30. Alexander Peter Bromley

    20ft Nemesis Cat

    Alexander Peter Bromley, Feb 24, 2021 ... 9 10 11
    Replies:
    152
    Views:
    17,762
    Alexander Peter Bromley
    Jan 14, 2023
  31. Ryan Bailey

    DIY sails, rigging, daggerboards for kayak - reasonable expectation for sailing to weather?

    Ryan Bailey, Jun 3, 2022 ... 2
    Replies:
    19
    Views:
    1,560
    Blueknarr
    Jan 11, 2023
  32. Squidly-Diddly

    Ice-Sled into boat into car-top cargo box project.

    Squidly-Diddly, Dec 27, 2022
    Replies:
    14
    Views:
    615
    Squidly-Diddly
    Jan 10, 2023
  33. sun

    why the hull parted in stern?

    sun, Dec 30, 2022 ... 2
    Replies:
    18
    Views:
    824
    comfisherman
    Jan 10, 2023
  34. Jack of all Trades

    ICW & Great Loop Boat for two people

    Jack of all Trades, Jan 7, 2023
    Replies:
    10
    Views:
    413
    rberrey
    Jan 9, 2023
  35. Glidemaster

    Traditional Design Tools

    Glidemaster, Jan 8, 2023
    Replies:
    1
    Views:
    337
    mc_rash
    Jan 9, 2023
  36. Jack of all Trades

    Redesigned Barge 26 by Tad Robert's

    Jack of all Trades, Jan 4, 2023
    Replies:
    3
    Views:
    454
    Jack of all Trades
    Jan 6, 2023
  37. Toothbrush

    Bp delta charts and selecting the right propeller

    Toothbrush, Nov 13, 2017
    Replies:
    5
    Views:
    3,305
    fallguy
    Jan 6, 2023
  38. Chris Chadwick

    HDPE pontoons

    Chris Chadwick, Jul 19, 2022 ... 2 3
    Replies:
    31
    Views:
    2,563
    indianbayjoe
    Jan 4, 2023
  39. Squidly-Diddly

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

    Squidly-Diddly, Jun 3, 2022
    Replies:
    4
    Views:
    667
    BlueBell
    Jan 4, 2023
  40. tpelle

    Sitting Here Watching It Rain - Had A Stupid Idea

    tpelle, Dec 31, 2022
    Replies:
    6
    Views:
    481
    tpelle
    Jan 3, 2023
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