Boat Design

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

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  1. Marine_Mechanic

    Updating a keel-hung rudder

    Marine_Mechanic, Jun 29, 2025 at 8:53 AM
    Replies:
    6
    Views:
    308
    gonzo
    Jun 30, 2025 at 3:41 PM
  2. BMP

    Best resource for learning to calculate scantlings

    BMP, Jun 25, 2025 at 5:21 PM ... 2
    Replies:
    17
    Views:
    724
    TANSL
    Jun 30, 2025 at 3:53 PM
  3. fpjeepy05

    Aluminum Skiff

    fpjeepy05, Jun 23, 2025 ... 2
    Replies:
    15
    Views:
    845
    montero
    Jun 30, 2025 at 6:06 PM
  4. Navindu Karuanrathne

    Need Lines Plan For Passenger Ferry Catamaran for University Project

    Navindu Karuanrathne, Jun 22, 2025
    Replies:
    6
    Views:
    822
    Navindu Karuanrathne
    Jun 26, 2025 at 8:35 AM
  5. hashtag_laeuft

    Weight estimation for wood coatings

    hashtag_laeuft, Jun 18, 2025 ... 2
    Replies:
    18
    Views:
    1,261
    hashtag_laeuft
    Jun 22, 2025
  6. Hiro Chen

    One question of outboard engine

    Hiro Chen, Jun 17, 2025 ... 2
    Replies:
    24
    Views:
    1,463
    Hiro Chen
    Jun 22, 2025
  7. ASIS BOATS

    Foam-Filled Aluminum Hull: The ASIS FoamShield® Advantage

    ASIS BOATS, Jun 17, 2025
    Replies:
    1
    Views:
    654
    Ad Hoc
    Jun 17, 2025
  8. JINLEE

    Commercial Jet boat new build

    JINLEE, Jun 14, 2025
    Replies:
    2
    Views:
    1,128
    BlueBell
    Jun 21, 2025
  9. DCockey

    Different/Unique/Odd/???

    DCockey, Jun 13, 2025
    Replies:
    12
    Views:
    1,103
    clmanges
    Jun 17, 2025
  10. Andres94

    Vinylester vs. Isophthalic Resin in Oz Goose Construction with Fillets

    Andres94, Jun 10, 2025
    Replies:
    13
    Views:
    1,104
    ondarvr
    Jun 15, 2025
  11. aaaaa

    What do you think of this dinghy design?

    aaaaa, Jun 10, 2025
    Replies:
    2
    Views:
    663
    Russell Brown
    Jun 12, 2025
  12. Horton HCCI

    Hydroplaning Rowboat

    Horton HCCI, Jun 9, 2025 ... 2 3
    Replies:
    31
    Views:
    1,924
    Horton HCCI
    Jun 12, 2025
  13. T J

    Adding mini tubes in rear to help bouyance

    T J, Jun 5, 2025
    Replies:
    5
    Views:
    2,138
    kapnD
    Jun 7, 2025
  14. shaun Moir

    Fully HDPE 57ft Narrowboat – Why We Built It (and Why It Matters)

    shaun Moir, Jun 5, 2025 ... 2
    Replies:
    19
    Views:
    2,843
    shaun Moir
    Jun 12, 2025
  15. Phil Magnuson

    Rowing Needle

    Phil Magnuson, Jun 4, 2025
    Replies:
    4
    Views:
    658
    Skip Johnson
    Jun 5, 2025
  16. MtUmutSarac

    Looking for Skerry SK15, 15 Square meter Class Line Plans

    MtUmutSarac, Jun 4, 2025
    Replies:
    0
    Views:
    421
    MtUmutSarac
    Jun 4, 2025
  17. kapnD

    Integral fuel tanks

    kapnD, May 31, 2025
    Replies:
    6
    Views:
    755
    montero
    Jun 2, 2025
  18. ad657

    Design of LNG Bunkering Vessel

    ad657, May 31, 2025
    Replies:
    8
    Views:
    1,265
    TANSL
    Jun 20, 2025
  19. laukejas

    Unifying small heel angle and large heel angle GM calculations

    laukejas, May 27, 2025 ... 2
    Replies:
    15
    Views:
    1,447
    CarlosK2
    Jun 4, 2025
  20. montero

    Personal overboard survival ideas

    montero, May 26, 2025 ... 2 3 4
    Replies:
    56
    Views:
    2,714
    montero
    Jun 9, 2025
  21. giacummo

    Goat Island Skiff and Freeship Results

    giacummo, May 22, 2025
    Replies:
    9
    Views:
    1,355
    TANSL
    May 24, 2025
  22. famosa

    aluminium fuel tank

    famosa, May 22, 2025
    Replies:
    4
    Views:
    1,212
    fallguy
    May 24, 2025
  23. gdirl

    Inverted hull calculations.

    gdirl, May 18, 2025
    Replies:
    5
    Views:
    1,059
    Kayakmarathon
    May 31, 2025
  24. Squidly-Diddly

    Mexican navy training Tall Ship crashes into bridge in NYC!

    Squidly-Diddly, May 18, 2025
    Replies:
    7
    Views:
    3,762
    braoun
    Jun 10, 2025
  25. Azrie

    Amphibious Rigid Inflatable Boat (ARIB) Fender Replacement from Inflatable to Foam Filled Type

    Azrie, May 18, 2025
    Replies:
    3
    Views:
    3,157
    gonzo
    May 20, 2025
  26. montero

    23' car roof jon boat

    montero, May 16, 2025 ... 2 3
    Replies:
    44
    Views:
    3,440
    montero
    May 23, 2025
  27. pistnbroke

    Stacking boat in production

    pistnbroke, May 13, 2025
    Replies:
    4
    Views:
    814
    pistnbroke
    May 14, 2025
  28. famosa

    windshield aluminium profile

    famosa, May 12, 2025
    Replies:
    13
    Views:
    1,345
    fallguy
    May 14, 2025
  29. MtUmutSarac

    Faceted Airfoil Approximated Design for Foiled Surf Sailboard

    MtUmutSarac, May 11, 2025
    Replies:
    6
    Views:
    1,642
    wet feet
    May 22, 2025
  30. MtUmutSarac

    Boat Design - First Step - Sheer line and First Chine design

    MtUmutSarac, May 10, 2025
    Replies:
    12
    Views:
    1,887
    gonzo
    May 14, 2025
  31. gdirl

    27’ Garvey plans

    gdirl, May 9, 2025
    Replies:
    6
    Views:
    996
    gdirl
    May 10, 2025
  32. yanivmass

    converting ABS moment of inertia units

    yanivmass, May 8, 2025
    Replies:
    0
    Views:
    640
    yanivmass
    May 8, 2025
  33. KEL505

    Elco Lines Drawings

    KEL505, May 4, 2025
    Replies:
    0
    Views:
    716
    KEL505
    May 4, 2025
  34. pironiero

    Rig modification questions

    pironiero, Apr 28, 2025
    Replies:
    5
    Views:
    1,129
    pironiero
    May 20, 2025
  35. Squidly-Diddly

    would you drown in big ships wake due to air bubbles lowering density?

    Squidly-Diddly, Apr 27, 2025
    Replies:
    13
    Views:
    2,504
    Will Gilmore
    May 5, 2025
  36. Qmaran

    Grok AI helped me design a mast. Is it any good?

    Qmaran, Apr 25, 2025
    Replies:
    10
    Views:
    2,923
    gonzo
    May 12, 2025
  37. Daniel Harrell

    23’ center console monohull

    Daniel Harrell, Apr 17, 2025
    Replies:
    5
    Views:
    2,949
    TANSL
    May 17, 2025
  38. cmetzbower

    Trim Tab on a Daggerboard?

    cmetzbower, Apr 17, 2025
    Replies:
    8
    Views:
    988
    CarlosK2
    Apr 19, 2025
  39. Squidly-Diddly

    I don't get it, what makes this mech-fish swim exactly?

    Squidly-Diddly, Apr 16, 2025
    Replies:
    6
    Views:
    2,413
    Squidly-Diddly
    Apr 21, 2025
  40. the brain

    Installing new saddle tanks

    the brain, Apr 9, 2025
    Replies:
    0
    Views:
    714
    the brain
    Apr 9, 2025
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