Boat Design

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

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  1. Vineet

    Yacht design career (not naval architect) for a middle aged fella

    Vineet, Jun 6, 2021
    Replies:
    8
    Views:
    441
    Vineet
    Jun 21, 2021 at 1:05 AM
  2. tropostudio

    Power Multi Hull Shape

    tropostudio, Jun 16, 2021 at 9:32 PM ... 2
    Replies:
    15
    Views:
    353
    tropostudio
    Jun 20, 2021 at 9:32 PM
  3. mitchgrunes

    Can a rudder produce a strong turning force on a sea kayak; other wave-fighting recommendations?

    mitchgrunes, Jun 18, 2021 at 10:57 PM
    Replies:
    9
    Views:
    199
    BlueBell
    Jun 20, 2021 at 8:37 PM
  4. Velsia

    Cup Holders

    Velsia, Dec 9, 2019 ... 2
    Replies:
    20
    Views:
    1,708
    Tiny Turnip
    Jun 20, 2021 at 5:14 AM
  5. TacoFace

    a boat from foam-fiberglass laminate panels

    TacoFace, May 29, 2021 ... 4 5 6
    Replies:
    75
    Views:
    1,738
    sharpii2
    Jun 19, 2021 at 6:50 AM
  6. Wideocean7

    Replacing One Fuel Tank with Two

    Wideocean7, Jun 2, 2021 ... 2 3 4
    Replies:
    58
    Views:
    916
    Wideocean7
    Jun 19, 2021 at 12:27 AM
  7. rubenova

    What kind of transom is this?

    rubenova, Jun 18, 2021 at 6:43 PM
    Replies:
    3
    Views:
    123
    Busman1965
    Jun 18, 2021 at 7:55 PM
  8. CharlieDanger99

    Reasons to Reduce Mast Height

    CharlieDanger99, Jun 13, 2021
    Replies:
    8
    Views:
    276
    CharlieDanger99
    Jun 18, 2021 at 4:13 PM
  9. ElectroDanO

    "Current Situation" DIY Efficient Solar/Electric Powered Newport 17 Project

    ElectroDanO, Jan 1, 2021 ... 2 3
    Replies:
    34
    Views:
    2,824
    portacruise
    Jun 18, 2021 at 2:07 AM
  10. Saqa

    Single pontoon boat drawing

    Saqa, Jun 15, 2021 at 12:50 AM ... 3 4 5
    Replies:
    63
    Views:
    845
    portacruise
    Jun 18, 2021 at 1:03 AM
  11. Iridian

    Catamaran Trampoline Length as a Fraction of Boat Length?

    Iridian, Jun 15, 2021 at 10:18 AM
    Replies:
    6
    Views:
    190
    Tony.Ellen
    Jun 17, 2021 at 3:24 PM
  12. cristofa

    ... the ROCAT story

    cristofa, Apr 22, 2014 ... 2 3
    Replies:
    41
    Views:
    4,683
    Rick Killeen
    Jun 17, 2021 at 11:55 AM
  13. Saqa

    Scaling power?

    Saqa, Jun 16, 2021 at 10:29 PM ... 2
    Replies:
    21
    Views:
    289
    fredrosse
    Jun 17, 2021 at 11:08 AM
  14. mc_rash

    competition wanted

    mc_rash, Apr 4, 2021
    Replies:
    6
    Views:
    527
    Will Gilmore
    Jun 16, 2021 at 4:13 PM
  15. Matthew777

    Hull speed differential between a traditional full keel boat and a modern hull

    Matthew777, Jun 12, 2021
    Replies:
    14
    Views:
    425
    bajansailor
    Jun 16, 2021 at 12:20 PM
  16. Vineet

    simple question I can't seem to find an answer to re published displacement numbers

    Vineet, Jun 8, 2021
    Replies:
    12
    Views:
    433
    Alik
    Jun 15, 2021 at 9:22 PM
  17. prabs

    Table of offsets

    prabs, Jun 14, 2021
    Replies:
    11
    Views:
    268
    Howlandwoodworks
    Jun 15, 2021 at 6:14 PM
  18. Tharayman

    Advicve on mending thermostat cooling water leak

    Tharayman, Jan 13, 2021
    Replies:
    12
    Views:
    451
    Tharayman
    Jun 15, 2021 at 7:48 AM
  19. Bullshipper

    Questions about rocker

    Bullshipper, Jun 12, 2021 ... 2 3
    Replies:
    37
    Views:
    542
    Bullshipper
    Jun 15, 2021 at 5:52 AM
  20. Saqa

    Fly a boat exercise

    Saqa, Jun 3, 2021 ... 2
    Replies:
    21
    Views:
    666
    dreamingbarrierreef
    Jun 15, 2021 at 1:26 AM
  21. ben2go

    I need help with terminology on thru hull water intakes.

    ben2go, Oct 8, 2018
    Replies:
    14
    Views:
    1,761
    phillysailor
    Jun 14, 2021
  22. DouglasM

    Lifeboat Conversion to a Houseboat during COVID

    DouglasM, Feb 19, 2021
    Replies:
    8
    Views:
    924
    bajansailor
    Jun 14, 2021
  23. Saqa

    Very long and skinny pontoon hulls

    Saqa, Jun 9, 2021 ... 2 3 4
    Replies:
    45
    Views:
    756
    Barry
    Jun 14, 2021
  24. Saqa

    Stabilisers

    Saqa, Jun 11, 2021
    Replies:
    6
    Views:
    254
    Saqa
    Jun 13, 2021
  25. Ana Alexandra

    General plan arrangement for a TUGBOAT 2x2400HP

    Ana Alexandra, Jun 12, 2021
    Replies:
    4
    Views:
    176
    bajansailor
    Jun 13, 2021
  26. Rranger

    I/O to outboard

    Rranger, Nov 26, 2020 ... 5 6 7
    Replies:
    100
    Views:
    4,384
    Rranger
    Jun 12, 2021
  27. Vineet

    Are keelboats for cruising dead?

    Vineet, Jun 6, 2021 ... 2
    Replies:
    20
    Views:
    641
    rangebowdrie
    Jun 12, 2021
  28. Busman1965

    Scupper design question

    Busman1965, Jun 11, 2021
    Replies:
    13
    Views:
    201
    Mr Efficiency
    Jun 12, 2021
  29. Quidnic

    Best design for fishing and be able to be towed behind bike or scooter

    Quidnic, Jun 8, 2021
    Replies:
    9
    Views:
    370
    mitchgrunes
    Jun 11, 2021
  30. Manuel R Alonso

    Boat Idea for Inboard Detroil Diesel 3-71 100 HP

    Manuel R Alonso, Jun 9, 2021
    Replies:
    8
    Views:
    250
    kapnD
    Jun 10, 2021
  31. tnlakeboat

    Reelfoot Lake (Stump Jumper)

    tnlakeboat, Mar 9, 2014 ... 2 3
    Replies:
    38
    Views:
    14,433
    Megkat
    Jun 9, 2021
  32. Keith Redfield

    Rudder pulls sailboat leeward

    Keith Redfield, Jun 6, 2021
    Replies:
    10
    Views:
    358
    Keith Redfield
    Jun 9, 2021
  33. Rungholt

    Rig design for an old fishing boat

    Rungholt, Jun 9, 2021
    Replies:
    1
    Views:
    166
    bajansailor
    Jun 9, 2021
  34. dreamingbarrierreef

    Winglloon

    dreamingbarrierreef, Jun 5, 2021
    Replies:
    12
    Views:
    407
    dreamingbarrierreef
    Jun 8, 2021
  35. OneWayTraffic

    Help me understand the Physics of foam support.

    OneWayTraffic, Jun 6, 2021 ... 2
    Replies:
    21
    Views:
    566
    OneWayTraffic
    Jun 8, 2021
  36. Saqa

    Exofish!....a WIG canoe

    Saqa, May 27, 2021 ... 2 3 4
    Replies:
    49
    Views:
    1,268
    gonzo
    Jun 8, 2021
  37. Iridian

    Catamaran Point Angle

    Iridian, Jun 6, 2021
    Replies:
    5
    Views:
    278
    CT249
    Jun 8, 2021
  38. rael dobkins

    Build a boat! Balkan Shipyards

    rael dobkins, Jun 8, 2021
    Replies:
    0
    Views:
    176
    rael dobkins
    Jun 8, 2021
  39. rocco611

    building a PM38 a few questions

    rocco611, Jul 30, 2020 ... 2 3
    Replies:
    31
    Views:
    2,454
    rocco611
    Jun 7, 2021
  40. Franknstein

    Calling all experts - deck / stringers / bulkeads / foam

    Franknstein, May 26, 2021
    Replies:
    6
    Views:
    291
    OneWayTraffic
    Jun 7, 2021
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