Boat Design

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

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  1. Howsounder

    Hull vane...hydrofoil for a semi displacement cruiser

    Howsounder, Nov 28, 2022 at 10:29 PM
    Replies:
    1
    Views:
    73
    Robert Biegler
    Nov 29, 2022 at 11:59 AM
  2. BobBill

    Need some Advice

    BobBill, Nov 19, 2022
    Replies:
    7
    Views:
    278
    BobBill
    Nov 29, 2022 at 9:13 AM
  3. rwatson

    Everything Old is new again - Flettner Rotor Ship is launched

    rwatson, Sep 1, 2008 ... 37 38 39
    Replies:
    582
    Views:
    174,725
    rwatson
    Nov 29, 2022 at 12:32 AM
  4. DCockey

    van Oossanen papers and publications - free download

    DCockey, Nov 16, 2018
    Replies:
    5
    Views:
    1,300
    rxcomposite
    Nov 28, 2022 at 8:30 PM
  5. Chris Chadwick

    HDPE pontoons

    Chris Chadwick, Jul 19, 2022 ... 2
    Replies:
    29
    Views:
    1,621
    gonzo
    Nov 28, 2022 at 5:26 PM
  6. dustman

    Critique my sail design?

    dustman, Nov 27, 2022 at 6:09 PM
    Replies:
    5
    Views:
    176
    HJS
    Nov 28, 2022 at 3:34 PM
  7. MYD

    5.5m keeldesign

    MYD, Nov 25, 2022 at 3:32 AM
    Replies:
    8
    Views:
    236
    jehardiman
    Nov 28, 2022 at 3:23 PM
  8. Ryan Miller

    What is a Cheap alternative to Waterproof casting deck?

    Ryan Miller, May 16, 2019 ... 2
    Replies:
    18
    Views:
    3,508
    Andrew Kirk
    Nov 27, 2022 at 5:31 AM
  9. Richard Gaysowski

    Can you ID this small 1960’s/70’s sailboat?

    Richard Gaysowski, Jul 16, 2022 ... 2 3
    Replies:
    34
    Views:
    2,309
    Richard Gaysowski
    Nov 26, 2022 at 7:44 PM
  10. Rounak Saha Niloy

    Deadrise of trimaran

    Rounak Saha Niloy, Nov 23, 2022 at 7:33 AM ... 2
    Replies:
    22
    Views:
    508
    TANSL
    Nov 26, 2022 at 6:25 PM
  11. SeanL

    A question about hull shape on a sail boat

    SeanL, Nov 24, 2022 at 2:44 PM
    Replies:
    9
    Views:
    314
    philSweet
    Nov 26, 2022 at 12:46 PM
  12. Murky Deep

    Resistance and rowing questions?

    Murky Deep, Nov 20, 2022
    Replies:
    9
    Views:
    377
    HJS
    Nov 25, 2022 at 6:09 AM
  13. jon haig

    SWATH speed and stability opinions

    jon haig, Jul 25, 2019 ... 2 3
    Replies:
    34
    Views:
    4,186
    Ad Hoc
    Nov 24, 2022 at 6:36 PM
  14. Jaro

    Hogfish like sharpie in Delftship

    Jaro, Sep 16, 2022
    Replies:
    10
    Views:
    508
    Jaro
    Nov 23, 2022 at 7:17 PM
  15. Alex008080

    How to know if the boat you are designing does not infringe with any patents

    Alex008080, Nov 17, 2022 ... 2
    Replies:
    17
    Views:
    770
    Milehog
    Nov 23, 2022 at 3:35 PM
  16. Dakillr013

    Wooden Rowboat to go across the Atlantic

    Dakillr013, Jun 1, 2022 ... 2 3 4
    Replies:
    53
    Views:
    2,632
    bajansailor
    Nov 23, 2022 at 2:41 PM
  17. Bing

    Shanty Boat Hull Modification Questions

    Bing, Nov 12, 2022 ... 2 3
    Replies:
    30
    Views:
    945
    jbo_c
    Nov 23, 2022 at 1:47 PM
  18. Alexander Peter Bromley

    20ft Nemesis Cat

    Alexander Peter Bromley, Feb 24, 2021 ... 9 10 11
    Replies:
    151
    Views:
    16,518
    Alexander Peter Bromley
    Nov 23, 2022 at 1:52 AM
  19. tmz

    Designing catamarans with fatter sterns?

    tmz, Nov 5, 2022 ... 2
    Replies:
    17
    Views:
    952
    tmz
    Nov 19, 2022
  20. Swiftsure33

    Spreader Angle for External Chainplates

    Swiftsure33, Nov 14, 2017
    Replies:
    9
    Views:
    2,450
    Midday Gun
    Nov 19, 2022
  21. tmz

    What Characteristics Define a Rudder ?

    tmz, Oct 15, 2022 ... 2
    Replies:
    19
    Views:
    866
    Ike
    Nov 17, 2022
  22. starcmr

    Suggestion for small boat?

    starcmr, Nov 15, 2022
    Replies:
    3
    Views:
    274
    Ike
    Nov 17, 2022
  23. jpazzz

    Uffa Fox's Hearts Desire

    jpazzz, Nov 12, 2022
    Replies:
    8
    Views:
    433
    jpazzz
    Nov 15, 2022
  24. noclue

    transom angle

    noclue, Nov 15, 2022
    Replies:
    2
    Views:
    218
    noclue
    Nov 15, 2022
  25. Sailcy

    Displacement vs loaded weight

    Sailcy, Feb 11, 2016 ... 2
    Replies:
    23
    Views:
    5,690
    bajansailor
    Nov 14, 2022
  26. Audun Hausberg

    Pourpose 47 William Garden design

    Audun Hausberg, Oct 17, 2022
    Replies:
    5
    Views:
    566
    Squidly-Diddly
    Nov 14, 2022
  27. Squidly-Diddly

    how do we save Global Dream II from breakers?....

    Squidly-Diddly, Sep 11, 2022 ... 2
    Replies:
    27
    Views:
    1,456
    Squidly-Diddly
    Nov 14, 2022
  28. PraisedNote044

    My first boat project

    PraisedNote044, Nov 8, 2022
    Replies:
    12
    Views:
    549
    hoytedow
    Nov 14, 2022
  29. Eigersa

    Free "Starlite" plans. Are they worth it?

    Eigersa, Nov 4, 2022 ... 2
    Replies:
    22
    Views:
    963
    Ike
    Nov 13, 2022
  30. rfleet1066

    The Sebastian Marie Riverboat

    rfleet1066, Oct 28, 2022
    Replies:
    3
    Views:
    353
    rfleet1066
    Nov 12, 2022
  31. Squidly-Diddly

    can a boat be a canoe, kayak and sliding seat rower?

    Squidly-Diddly, Oct 24, 2022
    Replies:
    13
    Views:
    914
    Squidly-Diddly
    Nov 11, 2022
  32. CaptChap

    Bar Island Skiff - Hull flip done

    CaptChap, Oct 3, 2022
    Replies:
    2
    Views:
    424
    gonzo
    Nov 10, 2022
  33. Doug Lord

    Cruise ship-7000 souls-18 lifeboats

    Doug Lord, May 16, 2016 ... 2
    Replies:
    23
    Views:
    4,423
    fredrosse
    Nov 9, 2022
  34. Boatman61

    Crandall Black Arrow Runabout scaled up 25

    Boatman61, Nov 5, 2022
    Replies:
    4
    Views:
    344
    gonzo
    Nov 7, 2022
  35. sabsfeigler

    New Racing Canoe

    sabsfeigler, Apr 20, 2020 ... 2
    Replies:
    24
    Views:
    4,260
    Skyak
    Nov 7, 2022
  36. Alexmach1

    Aluminum 8 meter beast

    Alexmach1, Sep 30, 2022 ... 2 3 4
    Replies:
    47
    Views:
    2,048
    Alexmach1
    Nov 7, 2022
  37. Elias1999

    Thin ship theory for catamaran design

    Elias1999, Oct 29, 2022
    Replies:
    3
    Views:
    465
    DCockey
    Nov 6, 2022
  38. wirescale

    Houseboat floats

    wirescale, Oct 30, 2022 ... 2
    Replies:
    15
    Views:
    779
    wirescale
    Nov 5, 2022
  39. rfleet1066

    river boat progress

    rfleet1066, Jan 19, 2013 ... 4 5 6
    Replies:
    82
    Views:
    15,754
    BlueBell
    Nov 5, 2022
  40. T Brown

    Power Catamaran center console design... assistance request

    T Brown, Nov 4, 2022
    Replies:
    8
    Views:
    364
    TANSL
    Nov 5, 2022
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