Boat Design

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

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  1. ryanonthebeach

    Center-board/rudder replacement 50' tri

    ryanonthebeach, Nov 22, 2019 at 10:37 AM
    Replies:
    0
    Views:
    31
    ryanonthebeach
    Nov 22, 2019 at 10:37 AM
  2. jon haig

    Will air injection in a concave sailboat or catamaran hull make it faster

    jon haig, Nov 19, 2019 at 7:53 PM
    Replies:
    12
    Views:
    261
    Heimfried
    Nov 21, 2019 at 5:12 AM
  3. Ghost Boy

    Draw Lines plan without offset table

    Ghost Boy, Nov 18, 2019 at 8:06 AM
    Replies:
    10
    Views:
    286
    gonzo
    Nov 20, 2019 at 10:17 PM
  4. Steve.Y

    About building a frp sloop by the 3D printer

    Steve.Y, Nov 16, 2019 at 10:16 AM
    Replies:
    7
    Views:
    279
    rnlock
    Nov 18, 2019 at 10:17 AM
  5. James T

    Propeller Drawing

    James T, Nov 14, 2019
    Replies:
    4
    Views:
    197
    Heimfried
    Nov 15, 2019
  6. Manateeman

    Closing halyard exit slots in aluminum masts

    Manateeman, Nov 12, 2019 ... 2 3
    Replies:
    40
    Views:
    666
    Ad Hoc
    Nov 22, 2019 at 12:52 AM
  7. George T

    New racing dinghy design

    George T, Nov 8, 2019
    Replies:
    7
    Views:
    352
    messabout
    Nov 9, 2019
  8. valvebounce

    Partial roof on a 14ft f/glass speedboat

    valvebounce, Nov 8, 2019 ... 2
    Replies:
    24
    Views:
    347
    valvebounce
    Nov 11, 2019
  9. GhostGeek

    Plywood sectional barge

    GhostGeek, Nov 7, 2019 ... 2
    Replies:
    22
    Views:
    502
    rnlock
    Nov 18, 2019 at 10:26 AM
  10. Simon_PL

    Planing 10m Motor Yacht

    Simon_PL, Nov 3, 2019 ... 2
    Replies:
    24
    Views:
    631
    SailDesign
    Nov 13, 2019
  11. ujm9

    DSS foil type of design

    ujm9, Nov 1, 2019
    Replies:
    1
    Views:
    250
    tspeer
    Nov 14, 2019
  12. Nauticals

    Fin keel technical suggestions

    Nauticals, Nov 1, 2019
    Replies:
    11
    Views:
    384
    Tim Rowe
    Nov 3, 2019
  13. Alwaysthinking.

    Tank testing for amateurs

    Alwaysthinking., Oct 30, 2019 ... 2 3 4
    Replies:
    59
    Views:
    1,467
    portacruise
    Nov 22, 2019 at 7:42 PM
  14. KyleF

    Nimble omnidirectional speed / houseboat

    KyleF, Oct 30, 2019 ... 2
    Replies:
    21
    Views:
    534
    TANSL
    Nov 5, 2019
  15. ZackT

    Sail area vs tonnage? Also question on sail conversions

    ZackT, Oct 29, 2019 ... 2
    Replies:
    17
    Views:
    338
    Blueknarr
    Oct 31, 2019
  16. Alexanov

    Sunseeker Camargue 55 lines plans

    Alexanov, Oct 29, 2019
    Replies:
    5
    Views:
    203
    Alik
    Oct 29, 2019
  17. Pietr Belosguardo

    New build question

    Pietr Belosguardo, Oct 27, 2019 ... 2 3
    Replies:
    42
    Views:
    882
    fallguy
    Oct 30, 2019
  18. Magnus W

    Barge questions

    Magnus W, Oct 25, 2019 ... 2
    Replies:
    25
    Views:
    579
    bajansailor
    Nov 1, 2019
  19. Alwaysthinking.

    Fish form revival: rough (very) draft.

    Alwaysthinking., Oct 25, 2019
    Replies:
    5
    Views:
    392
    rnlock
    Nov 16, 2019 at 12:56 AM
  20. Squidly-Diddly

    how about floating roads instead of bridges?

    Squidly-Diddly, Oct 20, 2019 ... 2 3
    Replies:
    35
    Views:
    984
    gonzo
    Oct 30, 2019
  21. Manateeman

    Reducing air draft calculations

    Manateeman, Oct 18, 2019 ... 2
    Replies:
    22
    Views:
    714
    rnlock
    Nov 20, 2019 at 9:55 PM
  22. thenavalarch

    Article: OCIMF MEG-4 and Mooring Design of vessels – Part I OCIMF MEG-4 Mooring 1 (TheNavalArch)

    thenavalarch, Oct 12, 2019
    Replies:
    0
    Views:
    211
    thenavalarch
    Oct 12, 2019
  23. Annode

    Best case reduction in drag from a bulbous bow bulb

    Annode, Oct 11, 2019
    Replies:
    3
    Views:
    326
    jehardiman
    Oct 12, 2019
  24. Capt. Flint

    Shower, Head, and Sink Plumbing

    Capt. Flint, Oct 10, 2019
    Replies:
    6
    Views:
    333
    BKay
    Oct 21, 2019
  25. MaisieI

    Propellers on all sides?

    MaisieI, Oct 10, 2019
    Replies:
    3
    Views:
    341
    W9GFO
    Oct 17, 2019
  26. TyCor

    DIY power barge

    TyCor, Oct 10, 2019 ... 2
    Replies:
    15
    Views:
    617
    TyCor
    Oct 28, 2019
  27. Robert solo

    Jet drive Canoe

    Robert solo, Oct 8, 2019 ... 2 3
    Replies:
    44
    Views:
    1,129
    JosephT
    Nov 8, 2019
  28. abosely

    Deployable, shallow submersible observation pod for Catamaran

    abosely, Oct 7, 2019
    Replies:
    7
    Views:
    285
    W9GFO
    Oct 8, 2019
  29. Veloceruss

    I would like suggestions for design books

    Veloceruss, Oct 5, 2019 ... 2
    Replies:
    20
    Views:
    1,062
    SailDesign
    Oct 30, 2019
  30. Nathaniel Kennell

    Looking for 26’-28’ power catamaran sport fish plans!

    Nathaniel Kennell, Oct 3, 2019 ... 2
    Replies:
    18
    Views:
    683
    fallguy
    Oct 10, 2019
  31. Capn Bogbrush

    Lithium batteries

    Capn Bogbrush, Oct 2, 2019 ... 2
    Replies:
    26
    Views:
    1,017
    Dejay
    Oct 16, 2019
  32. wallyland

    Need help to design a special mast

    wallyland, Oct 1, 2019
    Replies:
    7
    Views:
    391
    wallyland
    Oct 3, 2019
  33. SnappyB

    Richard Woods design plan difficulty?

    SnappyB, Sep 29, 2019
    Replies:
    6
    Views:
    1,273
    fallguy
    Oct 2, 2019
  34. SamC

    Need help on how to design a boat

    SamC, Sep 24, 2019 ... 2
    Replies:
    25
    Views:
    868
    Waterwitch
    Oct 2, 2019
  35. rael dobkins

    Proa Make O'Break, preparing for MICROCRUISING

    rael dobkins, Sep 24, 2019
    Replies:
    0
    Views:
    248
    rael dobkins
    Sep 24, 2019
  36. kavin mommsen

    Pontoon vessel Calcs

    kavin mommsen, Sep 23, 2019
    Replies:
    11
    Views:
    533
    bajansailor
    Sep 27, 2019
  37. almoniyot

    Question about centerboard design on small sailing catamaran

    almoniyot, Sep 23, 2019
    Replies:
    13
    Views:
    661
    almoniyot
    Sep 26, 2019
  38. chachito

    O B 17 with cudy cabin

    chachito, Sep 23, 2019
    Replies:
    1
    Views:
    259
    Mr Efficiency
    Sep 23, 2019
  39. Troy Royal

    Looking help to design 165 ft (50.3M) Catamaran

    Troy Royal, Sep 22, 2019
    Replies:
    11
    Views:
    569
    Squidly-Diddly
    Oct 8, 2019
  40. Annode

    Marine air filled roller haul out force calcualtions

    Annode, Sep 22, 2019 ... 2
    Replies:
    21
    Views:
    941
    Squidly-Diddly
    Oct 5, 2019
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