Boat Design

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

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  1. Mcarthur

    LB ratio & powercat fuel efficiency

    Mcarthur, Feb 14, 2021 ... 2
    Replies:
    22
    Views:
    4,156
    Mcarthur
    Mar 3, 2021
  2. Bert Amphibious

    Surface Drive For a fast Amphibious Vehicle

    Bert Amphibious, Feb 18, 2018 ... 2
    Replies:
    24
    Views:
    8,017
    Nikola Webster
    Mar 4, 2021
  3. IanH

    Sail Boat Plans 34 to 40 feet Round bilge

    IanH, Mar 21, 2019 ... 2 3
    Replies:
    30
    Views:
    5,301
    gonzo
    Mar 4, 2021
  4. Murky Deep

    Design modification when the designer suggests it is possible?

    Murky Deep, Feb 11, 2021
    Replies:
    4
    Views:
    1,367
    fredrosse
    Mar 6, 2021
  5. jagercek

    DIY Dinghy with Laser 4.7 sails

    jagercek, Mar 6, 2021
    Replies:
    5
    Views:
    2,955
    tlouth7
    Mar 10, 2021
  6. Bornyesterday

    Questions about an extended motoryacht

    Bornyesterday, Mar 8, 2021
    Replies:
    12
    Views:
    2,197
    peter radclyffe
    Mar 10, 2021
  7. pironiero

    sailboat building price increase with the size

    pironiero, Feb 18, 2021
    Replies:
    11
    Views:
    1,940
    Howlandwoodworks
    Mar 11, 2021
  8. Kastally80

    Power catamaran's chine design

    Kastally80, Mar 12, 2021
    Replies:
    12
    Views:
    2,540
    Mr Efficiency
    Mar 13, 2021
  9. pironiero

    Flexible mast from iceboat on a racing dinghy

    pironiero, Mar 10, 2021
    Replies:
    6
    Views:
    1,389
    johneck
    Mar 15, 2021
  10. FranV

    Thornycroft Navy Torpedo Boat - Peculiar Stern

    FranV, Mar 13, 2021
    Replies:
    8
    Views:
    2,187
    jehardiman
    Mar 15, 2021
  11. zstine

    DNV-GL Design Pressure And ISO-12215 Online Calc Mismatch

    zstine, Mar 2, 2021 ... 3 4 5
    Replies:
    67
    Views:
    8,810
    rxcomposite
    Mar 16, 2021
  12. HambleTurtle

    Free model longship designs?

    HambleTurtle, Feb 27, 2021
    Replies:
    12
    Views:
    8,040
    HambleTurtle
    Mar 18, 2021
  13. Birdsofprey

    Flat bottom fishing/bowfishing boat

    Birdsofprey, Mar 17, 2021 ... 2
    Replies:
    15
    Views:
    3,134
    messabout
    Mar 19, 2021
  14. HJS

    V-bottom or flat bottom?

    HJS, Oct 14, 2020 ... 2
    Replies:
    16
    Views:
    5,810
    HJS
    Mar 20, 2021
  15. Jim Watson

    Bolger June Bug Mods.

    Jim Watson, Mar 19, 2021
    Replies:
    4
    Views:
    2,305
    Jim Watson
    Mar 20, 2021
  16. cthippo

    What to look for in a hull for conversion

    cthippo, Mar 20, 2021
    Replies:
    2
    Views:
    1,186
    cthippo
    Mar 20, 2021
  17. Tiki Luc

    Air lubrication question

    Tiki Luc, Mar 17, 2021 ... 2
    Replies:
    25
    Views:
    2,909
    Tiki Luc
    Mar 20, 2021
  18. LastSamsara

    3/8 plywood vs 1/2

    LastSamsara, Mar 21, 2021
    Replies:
    12
    Views:
    2,599
    fallguy
    Mar 21, 2021
  19. FoilAddict

    Hydrofoil Paddle Downwind Board

    FoilAddict, Mar 18, 2021
    Replies:
    8
    Views:
    1,983
    Kayakmarathon
    Mar 22, 2021
  20. Stigla

    Inflatable electric boat calculation question

    Stigla, Mar 18, 2021 ... 2
    Replies:
    17
    Views:
    2,150
    kerosene
    Mar 23, 2021
  21. buzzman

    Wvae action generator

    buzzman, Mar 23, 2021
    Replies:
    6
    Views:
    986
    Skeeter1994
    Mar 23, 2021
  22. Cedric Oberman

    Nesting Proa Strength

    Cedric Oberman, Mar 15, 2021
    Replies:
    7
    Views:
    1,962
    peterAustralia
    Mar 23, 2021
  23. jehardiman

    Interesting design perspective

    jehardiman, Mar 18, 2021 ... 2
    Replies:
    26
    Views:
    3,253
    Skeeter1994
    Mar 24, 2021
  24. BobBill

    Looking for "Soft" Adhesive to use with Foam...

    BobBill, Mar 21, 2021
    Replies:
    6
    Views:
    1,618
    fallguy
    Mar 24, 2021
  25. Bullshipper

    How does one buld an FRP cabin door?

    Bullshipper, Mar 22, 2021 ... 2
    Replies:
    26
    Views:
    2,805
    fallguy
    Mar 24, 2021
  26. pironiero

    Chined hulls like RM

    pironiero, Mar 24, 2021 ... 2
    Replies:
    18
    Views:
    3,134
    Rumars
    Mar 25, 2021
  27. pironiero

    any info on Artecna Delph 44?

    pironiero, Mar 25, 2021
    Replies:
    6
    Views:
    1,496
    Rumars
    Mar 26, 2021
  28. crankit

    Would consider this stringer system too light for a 23ft?

    crankit, Mar 26, 2021
    Replies:
    3
    Views:
    1,396
    bajansailor
    Mar 27, 2021
  29. Bouman

    95’ motor yacht exhaust cowl re-design

    Bouman, Mar 27, 2021
    Replies:
    7
    Views:
    1,474
    bajansailor
    Mar 28, 2021
  30. Squidly-Diddly

    "Ever Given" is new Titanic?

    Squidly-Diddly, Mar 24, 2021 ... 2 3
    Replies:
    35
    Views:
    4,184
    GIOVD
    Mar 29, 2021
  31. Peter Binns

    Calculating displacement for scale model ship

    Peter Binns, Mar 25, 2021 ... 2 3
    Replies:
    40
    Views:
    6,839
    gonzo
    Mar 29, 2021
  32. tonipu

    scaling up (down) planing hull

    tonipu, Mar 30, 2021
    Replies:
    12
    Views:
    1,773
    tonipu
    Mar 30, 2021
  33. NoviceJoe

    2.5hp Catamaran - power delivery issue

    NoviceJoe, Jul 16, 2020 ... 2 3
    Replies:
    37
    Views:
    5,743
    waterbear
    Mar 31, 2021
  34. an2reir

    Deep Vee Hull Design

    an2reir, Mar 10, 2021 ... 2
    Replies:
    26
    Views:
    5,477
    an2reir
    Apr 1, 2021
  35. Annode

    Coefficient of Scantling

    Annode, Apr 3, 2020 ... 6 7 8
    Replies:
    112
    Views:
    10,561
    TANSL
    Apr 1, 2021
  36. peter radclyffe

    are there any naval architects in italy experienced

    peter radclyffe, Apr 3, 2021
    Replies:
    0
    Views:
    976
    peter radclyffe
    Apr 3, 2021
  37. Dean Bixler

    Pete Culler’s Long John and Robert Steward’s Sharptown Barge

    Dean Bixler, Mar 26, 2021
    Replies:
    3
    Views:
    2,127
    messabout
    Apr 4, 2021
  38. Squidly-Diddly

    what are the specs/maker of these large refugee trafficker NGO inflatables?

    Squidly-Diddly, Apr 4, 2021
    Replies:
    1
    Views:
    1,135
    comfisherman
    Apr 5, 2021
  39. DogCavalry

    How About No More Electric Boats?

    DogCavalry, Mar 18, 2021 ... 11 12 13
    Replies:
    180
    Views:
    15,593
    hoytedow
    Apr 6, 2021
  40. kerosene

    Semi sleeve sail / luff pocket

    kerosene, Apr 6, 2021
    Replies:
    11
    Views:
    2,735
    sharpii2
    Apr 8, 2021
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