Boat Design

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

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  1. Josef Brychta

    Dream project: Converting a support vessel <300 GT into a long-range liveaboard expedition yacht

    Josef Brychta, Jul 8, 2025 at 4:56 PM ... 2
    Replies:
    22
    Views:
    330
    Rumars
    Jul 9, 2025 at 8:24 PM
  2. Guru

    Kotaro Horiuchi book on boat design

    Guru, Aug 12, 2014 ... 2
    Replies:
    22
    Views:
    6,525
    montero
    Jul 9, 2025 at 6:06 PM
  3. Dominykas

    Simple race hydroplane

    Dominykas, Jul 8, 2025 at 10:09 AM
    Replies:
    3
    Views:
    246
    montero
    Jul 9, 2025 at 5:31 AM
  4. peter radclyffe

    yacht sunk in med

    peter radclyffe, Aug 19, 2024 ... 12 13 14
    Replies:
    206
    Views:
    23,500
    jehardiman
    Jul 8, 2025 at 6:32 PM
  5. DavidMJordan

    Bamboo boats

    DavidMJordan, Aug 21, 2010 ... 2
    Replies:
    23
    Views:
    30,974
    gonzo
    Jul 7, 2025 at 4:38 PM
  6. Sgf

    Considerations when converting plan to skin on frame

    Sgf, Jul 2, 2025
    Replies:
    13
    Views:
    928
    Sgf
    Jul 5, 2025 at 3:40 PM
  7. mattwell

    How big must a model be to be useful assessing a multi-hull design?

    mattwell, Jul 1, 2025 ... 2
    Replies:
    20
    Views:
    1,379
    seasquirt
    Jul 5, 2025 at 5:05 AM
  8. BMP

    Best resource for learning to calculate scantlings

    BMP, Jun 25, 2025 ... 2
    Replies:
    23
    Views:
    1,589
    jehardiman
    Jul 3, 2025 at 5:48 PM
  9. rael dobkins

    Fast Junk Rig cruising, on a Balkan Proa.

    rael dobkins, Nov 25, 2024
    Replies:
    1
    Views:
    1,172
    BMP
    Jul 3, 2025 at 12:57 AM
  10. fpjeepy05

    Aluminum Skiff

    fpjeepy05, Jun 23, 2025 ... 2
    Replies:
    19
    Views:
    1,560
    comfisherman
    Jul 1, 2025
  11. Cleanriver

    Liner stuck to hull

    Cleanriver, Jul 1, 2025
    Replies:
    3
    Views:
    503
    Tops
    Jul 1, 2025
  12. chrismcg

    Building a boatbuilding business

    chrismcg, Apr 2, 2022 ... 2 3 4
    Replies:
    48
    Views:
    9,750
    Zachary Peter
    Jul 1, 2025
  13. Marine_Mechanic

    Updating a keel-hung rudder

    Marine_Mechanic, Jun 29, 2025
    Replies:
    6
    Views:
    484
    gonzo
    Jun 30, 2025
  14. Sebastian De La Maza

    3 meter HDPE sailing dinghy

    Sebastian De La Maza, Dec 2, 2024 ... 2 3
    Replies:
    33
    Views:
    6,668
    comfisherman
    Jun 29, 2025
  15. Navindu Karuanrathne

    Need Lines Plan For Passenger Ferry Catamaran for University Project

    Navindu Karuanrathne, Jun 22, 2025
    Replies:
    6
    Views:
    986
    Navindu Karuanrathne
    Jun 26, 2025
  16. Hiro Chen

    One question of outboard engine

    Hiro Chen, Jun 17, 2025 ... 2
    Replies:
    24
    Views:
    1,810
    Hiro Chen
    Jun 22, 2025
  17. hashtag_laeuft

    Weight estimation for wood coatings

    hashtag_laeuft, Jun 18, 2025 ... 2
    Replies:
    18
    Views:
    1,461
    hashtag_laeuft
    Jun 22, 2025
  18. JINLEE

    Commercial Jet boat new build

    JINLEE, Jun 14, 2025
    Replies:
    2
    Views:
    1,222
    BlueBell
    Jun 21, 2025
  19. ad657

    Design of LNG Bunkering Vessel

    ad657, May 31, 2025
    Replies:
    8
    Views:
    1,346
    TANSL
    Jun 20, 2025
  20. DCockey

    Different/Unique/Odd/???

    DCockey, Jun 13, 2025
    Replies:
    12
    Views:
    1,231
    clmanges
    Jun 17, 2025
  21. ASIS BOATS

    Foam-Filled Aluminum Hull: The ASIS FoamShield® Advantage

    ASIS BOATS, Jun 17, 2025
    Replies:
    1
    Views:
    756
    Ad Hoc
    Jun 17, 2025
  22. Andres94

    Vinylester vs. Isophthalic Resin in Oz Goose Construction with Fillets

    Andres94, Jun 10, 2025
    Replies:
    13
    Views:
    1,203
    ondarvr
    Jun 15, 2025
  23. jakeeeef

    Stepped hulls- 50 knots plus. Why?

    jakeeeef, Jun 25, 2023 ... 2 3
    Replies:
    43
    Views:
    4,735
    Horton HCCI
    Jun 14, 2025
  24. montero

    Boat suspension

    montero, Feb 9, 2025 ... 3 4 5
    Replies:
    67
    Views:
    4,912
    Horton HCCI
    Jun 14, 2025
  25. HappyDork

    What is the HP needed to drive a 20m x 3m 40MT boat at 13kph?

    HappyDork, Jan 16, 2025 ... 2 3
    Replies:
    36
    Views:
    4,013
    HappyDork
    Jun 13, 2025
  26. aaaaa

    What do you think of this dinghy design?

    aaaaa, Jun 10, 2025
    Replies:
    2
    Views:
    751
    Russell Brown
    Jun 12, 2025
  27. Horton HCCI

    Hydroplaning Rowboat

    Horton HCCI, Jun 9, 2025 ... 2 3
    Replies:
    31
    Views:
    2,161
    Horton HCCI
    Jun 12, 2025
  28. shaun Moir

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

    shaun Moir, Jun 5, 2025 ... 2
    Replies:
    19
    Views:
    3,366
    shaun Moir
    Jun 12, 2025
  29. Nomiddlename

    Boat built by eye. Need feedback

    Nomiddlename, Jan 21, 2025 ... 3 4 5
    Replies:
    62
    Views:
    6,218
    Nomiddlename
    Jun 12, 2025
  30. Squidly-Diddly

    Mexican navy training Tall Ship crashes into bridge in NYC!

    Squidly-Diddly, May 18, 2025
    Replies:
    7
    Views:
    3,842
    braoun
    Jun 10, 2025
  31. montero

    Personal overboard survival ideas

    montero, May 26, 2025 ... 2 3 4
    Replies:
    56
    Views:
    2,888
    montero
    Jun 9, 2025
  32. T J

    Adding mini tubes in rear to help bouyance

    T J, Jun 5, 2025
    Replies:
    5
    Views:
    2,576
    kapnD
    Jun 7, 2025
  33. Phil Magnuson

    Rowing Needle

    Phil Magnuson, Jun 4, 2025
    Replies:
    4
    Views:
    727
    Skip Johnson
    Jun 5, 2025
  34. Squidly-Diddly

    what is the inside scoop on big Baltimore bridge crash?

    Squidly-Diddly, Mar 26, 2024 ... 6 7 8
    Replies:
    117
    Views:
    17,165
    BlueBell
    Jun 4, 2025
  35. MtUmutSarac

    Looking for Skerry SK15, 15 Square meter Class Line Plans

    MtUmutSarac, Jun 4, 2025
    Replies:
    0
    Views:
    494
    MtUmutSarac
    Jun 4, 2025
  36. laukejas

    Unifying small heel angle and large heel angle GM calculations

    laukejas, May 27, 2025 ... 2
    Replies:
    15
    Views:
    1,536
    CarlosK2
    Jun 4, 2025
  37. kapnD

    Integral fuel tanks

    kapnD, May 31, 2025
    Replies:
    6
    Views:
    830
    montero
    Jun 2, 2025
  38. Scott Harris

    solar electric boat needs more boyancy

    Scott Harris, Mar 30, 2025 ... 2 3
    Replies:
    39
    Views:
    3,182
    Scott Harris
    Jun 1, 2025
  39. gdirl

    Inverted hull calculations.

    gdirl, May 18, 2025
    Replies:
    5
    Views:
    1,134
    Kayakmarathon
    May 31, 2025
  40. sharkbite

    corrosion of aluminium keel by ballast-advice

    sharkbite, Apr 14, 2014
    Replies:
    11
    Views:
    5,905
    Gordon Gervais
    May 30, 2025
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