Boat Design

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

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  1. kerosene

    Reasonable efficiency estimate for a pedal drive

    kerosene, Nov 19, 2021 ... 2 3
    Replies:
    30
    Views:
    4,596
    Andrew Kirk
    Dec 1, 2021
  2. philippe p

    Trimaran Objectif Rhum 39

    philippe p, Apr 11, 2020 ... 2
    Replies:
    17
    Views:
    5,123
    wet feet
    Dec 4, 2021
  3. ericrunner

    pontoon powered by sea doo ( jet ski )

    ericrunner, Sep 11, 2010 ... 2 3
    Replies:
    35
    Views:
    52,428
    ratherbeboating
    Dec 4, 2021
  4. Catfish Howard

    Pontoon motor position

    Catfish Howard, Nov 14, 2021 ... 2
    Replies:
    26
    Views:
    3,318
    Catfish Howard
    Dec 5, 2021
  5. BTScow

    Does anyone recongize this boat?

    BTScow, Jan 20, 2007
    Replies:
    10
    Views:
    3,693
    Rafe
    Dec 5, 2021
  6. helluvaboater

    Tunnel Questions

    helluvaboater, Feb 19, 2016 ... 2
    Replies:
    22
    Views:
    5,999
    Jace
    Dec 5, 2021
  7. mariobrothers88

    HDPE pond liner sheathing for houseboat construction

    mariobrothers88, Dec 4, 2021
    Replies:
    14
    Views:
    1,908
    lobsterman
    Dec 6, 2021
  8. Green65

    Boson's Mate 23 by Bowdidge Marine Designs

    Green65, Nov 1, 2021 ... 2 3 4
    Replies:
    45
    Views:
    5,795
    Green65
    Dec 8, 2021
  9. Leopard

    Equipment and Machinery List

    Leopard, Nov 22, 2021
    Replies:
    11
    Views:
    1,469
    Will Gilmore
    Dec 9, 2021
  10. Matt Cherry

    Self-righting Vessel Engine Room Ventilation

    Matt Cherry, Dec 10, 2021
    Replies:
    8
    Views:
    1,954
    Matt Cherry
    Dec 13, 2021
  11. sdantonio

    Sailboat scale-up questions

    sdantonio, Dec 12, 2021
    Replies:
    5
    Views:
    1,331
    Tops
    Dec 13, 2021
  12. luffy_33

    Best way to learn about irl boat design?

    luffy_33, Dec 15, 2021
    Replies:
    1
    Views:
    1,240
    Flotation
    Dec 15, 2021
  13. Konstantinos Panagiotou

    Naval architecture

    Konstantinos Panagiotou, Dec 2, 2021
    Replies:
    7
    Views:
    1,779
    Pablo Sopelana
    Dec 15, 2021
  14. Mik the stick

    The elements of boat strength

    Mik the stick, Dec 18, 2013 ... 3 4 5
    Replies:
    67
    Views:
    10,464
    gonzo
    Dec 15, 2021
  15. Furkan

    Choosing main engine and propeller

    Furkan, Dec 14, 2021
    Replies:
    4
    Views:
    1,384
    Barry
    Dec 15, 2021
  16. bhanu prakash

    How to calculate drag coefficeint for a small toy boat

    bhanu prakash, Dec 16, 2021
    Replies:
    5
    Views:
    1,588
    bhanu prakash
    Dec 17, 2021
  17. wollybugger

    Maximum Flare Location

    wollybugger, Dec 17, 2021
    Replies:
    3
    Views:
    1,159
    gonzo
    Dec 19, 2021
  18. kapnD

    Adding to keel

    kapnD, Dec 14, 2021
    Replies:
    11
    Views:
    3,152
    kapnD
    Dec 19, 2021
  19. CharlieDanger99

    Compression Post Design

    CharlieDanger99, Dec 17, 2021 ... 2
    Replies:
    20
    Views:
    2,901
    TANSL
    Dec 20, 2021
  20. DCockey

    Principles of Naval Architecture reprinted

    DCockey, Dec 20, 2021
    Replies:
    1
    Views:
    1,016
    bajansailor
    Dec 20, 2021
  21. bucketlist

    Down East designs

    bucketlist, Dec 19, 2021
    Replies:
    3
    Views:
    1,617
    bucketlist
    Dec 20, 2021
  22. rubenova

    2 or 3 speed hull design

    rubenova, Aug 22, 2011 ... 2
    Replies:
    15
    Views:
    6,187
    Ad Hoc
    Dec 21, 2021
  23. Jubal

    Lisa B. Good

    Jubal, Dec 21, 2021
    Replies:
    5
    Views:
    1,020
    BlueBell
    Dec 22, 2021
  24. James Wellington

    Critiques, Meta Ecotrol 39

    James Wellington, Dec 23, 2021
    Replies:
    2
    Views:
    1,152
    fallguy
    Dec 24, 2021
  25. Flotation

    battery-electric foiling ferry under development

    Flotation, Dec 22, 2021
    Replies:
    5
    Views:
    1,125
    Will Gilmore
    Dec 25, 2021
  26. Naval architecture

    Rudder dimensions

    Naval architecture, Dec 26, 2021
    Replies:
    2
    Views:
    2,027
    Ad Hoc
    Dec 26, 2021
  27. valery gaulin

    Maybe, maybe not

    valery gaulin, Oct 23, 2021 ... 3 4 5
    Replies:
    70
    Views:
    6,978
    valery gaulin
    Dec 26, 2021
  28. Leopard

    Ship without Control Room

    Leopard, Dec 27, 2021
    Replies:
    5
    Views:
    1,559
    jehardiman
    Dec 28, 2021
  29. cmaas

    Two Unusual Multi-hulls

    cmaas, Dec 27, 2021
    Replies:
    5
    Views:
    6,601
    alan craig
    Dec 29, 2021
  30. schakel

    Besides the 100 feeters who are going to win the up coming 2021 Sydney Hobart

    schakel, Dec 25, 2021
    Replies:
    6
    Views:
    1,309
    schakel
    Dec 30, 2021
  31. Jubal

    I wanna build a boat.

    Jubal, Dec 20, 2021 ... 2
    Replies:
    17
    Views:
    3,345
    gonzo
    Dec 30, 2021
  32. schakel

    Self steering for double wheels, can somebody help me out?

    schakel, Dec 30, 2021
    Replies:
    6
    Views:
    1,292
    schakel
    Jan 1, 2022
  33. trackie2

    Where to start when designing my first small sailboat?

    trackie2, Apr 1, 2021 ... 2 3
    Replies:
    37
    Views:
    6,384
    Pablo Sopelana
    Jan 4, 2022
  34. Squidly-Diddly

    I'd like to do STRETCHED verison of this roof-top cargo-box/dingy in Stitch&Glue.

    Squidly-Diddly, Jan 5, 2022
    Replies:
    0
    Views:
    968
    Squidly-Diddly
    Jan 5, 2022
  35. Ed wilkinson

    Nesting boats

    Ed wilkinson, Jan 5, 2022
    Replies:
    10
    Views:
    1,711
    kerosene
    Jan 7, 2022
  36. Larry

    Boat Mold & Plugs/equipment

    Larry, Jan 10, 2022
    Replies:
    0
    Views:
    2,266
    Larry
    Jan 10, 2022
  37. kapnD

    Displacement versus planing

    kapnD, Jan 8, 2022 ... 2
    Replies:
    20
    Views:
    1,818
    gonzo
    Jan 10, 2022
  38. Pedro

    Mini floating dock/bedroom

    Pedro, Dec 7, 2021 ... 2
    Replies:
    18
    Views:
    2,465
    Pedro
    Jan 12, 2022
  39. Bobuk25

    Mast steps and welding masts

    Bobuk25, Jan 4, 2022
    Replies:
    10
    Views:
    2,048
    Ilan Voyager
    Jan 12, 2022
  40. Forsmanni

    25ft midcabin boat. From I/O to twin outboard conversion

    Forsmanni, Aug 31, 2020 ... 2 3
    Replies:
    39
    Views:
    5,747
    Forsmanni
    Jan 13, 2022
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