Projects & Proposals

An open forum to generate ideas for collaborative design projects.

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  1. Todor Mihaylov

    DIY Idea: Cleaning Propeller Without Hauling Out — Worth It or Waste of Time? (Prototype pics)

    Todor Mihaylov, Apr 27, 2025
    Replies:
    6
    Views:
    634
    montero
    May 5, 2025
  2. RainAndStorm

    Rain-proof flyscreen for portlights

    RainAndStorm, Mar 28, 2025
    Replies:
    2
    Views:
    425
    RainAndStorm
    Apr 1, 2025
  3. fallguy

    Designs wanted

    fallguy, Mar 14, 2025
    Replies:
    6
    Views:
    870
    Todor Mihaylov
    Apr 27, 2025
  4. Twofish

    electric trolling motor props

    Twofish, Jan 14, 2025
    Replies:
    4
    Views:
    969
    alan craig
    Jan 17, 2025
  5. Bonkers

    Converting a small sailboat to a pilothouse motorboat

    Bonkers, Jan 3, 2025
    Replies:
    11
    Views:
    895
    Bonkers
    Jan 4, 2025
  6. sun

    Why do many designs fail to form products?

    sun, Dec 11, 2024 ... 2 3
    Replies:
    41
    Views:
    3,468
    sun
    Jan 4, 2025
  7. ECP

    Special Purpose Craft – Heavy Weather Second Generation (SPC-HWX II)

    ECP, Dec 10, 2024
    Replies:
    5
    Views:
    937
    Dave G 9N
    Dec 14, 2024
  8. emrecantasdemir

    yacht refit

    emrecantasdemir, Nov 13, 2024
    Replies:
    1
    Views:
    1,146
    emrecantasdemir
    Apr 4, 2025
  9. karlisJ

    Strengthening the transom?

    karlisJ, Sep 13, 2024
    Replies:
    2
    Views:
    775
    baeckmo
    Sep 13, 2024
  10. RainAndStorm

    Anchor leg

    RainAndStorm, Jul 18, 2024
    Replies:
    4
    Views:
    1,201
    seasquirt
    Jul 19, 2024
  11. SunSailor92

    Keelboat- Looking to Purchase/Commission Design

    SunSailor92, May 28, 2024
    Replies:
    2
    Views:
    1,086
    SunSailor92
    May 28, 2024
  12. Artisan38

    Looking for contact - people building their own houseboat

    Artisan38, Mar 24, 2024
    Replies:
    1
    Views:
    1,093
    Heimfried
    Mar 24, 2024
  13. Barry_S

    Detecting moisture in end grain balsa

    Barry_S, Feb 27, 2024
    Replies:
    7
    Views:
    1,846
    Howlandwoodworks
    Apr 2, 2024
  14. toni manzano

    Aluminum fishing boats manufacturer required

    toni manzano, Jan 6, 2024
    Replies:
    8
    Views:
    2,599
    Maxm
    May 7, 2024
  15. Stephen Ditmore

    Electric Launch Design optimized for semi-displacement speeds

    Stephen Ditmore, Jan 1, 2024 ... 12 13 14
    Replies:
    203
    Views:
    29,038
    TANSL
    May 27, 2025
  16. VoltageVessels

    U.S. Department of Energy Funded/Sponsored Project - Need Naval Architect!

    VoltageVessels, Dec 7, 2023
    Replies:
    4
    Views:
    1,899
    VoltageVessels
    Dec 8, 2023
  17. carbon_pirate

    Introduction of me and my carbon wing sail foiler project

    carbon_pirate, Oct 18, 2023
    Replies:
    0
    Views:
    1,642
    carbon_pirate
    Oct 18, 2023
  18. jubisdoo

    looking for partner in sales of hull repair gelcoat removing machine

    jubisdoo, May 21, 2023
    Replies:
    2
    Views:
    1,581
    Kevin Shi
    Mar 3, 2024
  19. jubisdoo

    Submersible battery operated hull brush development cooperation, colaboration

    jubisdoo, May 21, 2023 ... 2
    Replies:
    15
    Views:
    4,890
    Blueknarr
    May 25, 2023
  20. Frederick H

    Design of Towing Tank for Laboratory

    Frederick H, Mar 29, 2023
    Replies:
    8
    Views:
    2,522
    rwatson
    May 8, 2023
  21. Kevin Cummings

    Bird Dog Boat Design, Is a tunnel necessary?

    Kevin Cummings, Mar 13, 2023
    Replies:
    7
    Views:
    2,307
    Kevin Shi
    Mar 3, 2024
  22. tevake118

    Free rental for help on my 49' cat build

    tevake118, Feb 27, 2023
    Replies:
    0
    Views:
    1,476
    tevake118
    Feb 27, 2023
  23. RSD

    Would anyone like to design a 39 foot/12 metre Stabicraft-style boat?

    RSD, Dec 3, 2022 ... 3 4 5
    Replies:
    65
    Views:
    9,546
    brian eiland
    Jun 17, 2024
  24. rwatson

    Flettner Rotor for small craft - Design and Build Prototype

    rwatson, Nov 29, 2022 ... 2 3
    Replies:
    31
    Views:
    7,629
    rwatson
    Mar 2, 2025
  25. John Torelli

    New to forum

    John Torelli, Oct 12, 2022
    Replies:
    14
    Views:
    3,509
    No Worries
    Feb 28, 2024
  26. Windmaster

    Finding the best way to sail directly upwind

    Windmaster, Aug 15, 2022 ... 2
    Replies:
    19
    Views:
    4,948
    Windmaster
    Sep 15, 2022
  27. Windmaster

    Directory of many years of sailing research

    Windmaster, Jun 25, 2022
    Replies:
    2
    Views:
    2,207
    comfisherman
    Mar 27, 2023
  28. Dylan Banwell

    Catamaran projects looking for buyers..... Semi self build.

    Dylan Banwell, Jun 23, 2022
    Replies:
    0
    Views:
    1,818
    Dylan Banwell
    Jun 23, 2022
  29. Carlazzomark

    Pocket power hydrofoil cat

    Carlazzomark, Jun 15, 2022
    Replies:
    2
    Views:
    2,171
    Gasdok
    Jan 3, 2023
  30. Tom G Sailor

    Windless installation with high Bulwark/Gunnel Rail

    Tom G Sailor, May 17, 2022
    Replies:
    6
    Views:
    2,999
    rangebowdrie
    May 21, 2022
  31. Gregg2010

    2020 school Yamaha jet ski with hole in hull needs tow for 2 hrs without sinking

    Gregg2010, May 3, 2022
    Replies:
    7
    Views:
    2,488
    bajansailor
    May 4, 2022
  32. Daniel Owusu

    Static boat project

    Daniel Owusu, Apr 11, 2022
    Replies:
    12
    Views:
    2,434
    Crash5291
    Apr 21, 2022
  33. PEPAPE27

    Arenacraft Project

    PEPAPE27, Mar 8, 2022
    Replies:
    4
    Views:
    2,115
    PEPAPE27
    Mar 15, 2022
  34. Randy6969

    I want to build a custom bath tub

    Randy6969, Jan 22, 2022
    Replies:
    14
    Views:
    5,101
    DogCavalry
    Jan 27, 2022
  35. Adam bruh

    Seeking advice on building casting deck

    Adam bruh, Jan 8, 2022
    Replies:
    6
    Views:
    2,042
    gonzo
    Jan 10, 2022
  36. Phil171_Fr

    Inflatable electric kayak

    Phil171_Fr, Nov 29, 2021
    Replies:
    6
    Views:
    2,834
    portacruise
    Feb 11, 2024
  37. WWPierre

    Classic Camper Yacht

    WWPierre, Aug 4, 2021
    Replies:
    3
    Views:
    2,540
    jehardiman
    Aug 7, 2021
  38. brian eiland

    Jeff Bezo's New Superyacht

    brian eiland, May 13, 2021
    Replies:
    14
    Views:
    4,172
    Ike
    Feb 3, 2022
  39. Munson

    Extended anchor locker

    Munson, Mar 23, 2021
    Replies:
    5
    Views:
    2,003
    gonzo
    Mar 23, 2021
  40. Joao Soares

    1965 Venetian taxi plans

    Joao Soares, Feb 12, 2021 ... 2
    Replies:
    17
    Views:
    6,465
    Dolfiman
    May 2, 2021
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