Boat Design Forums

  1. Design

    1. Boat Design

      Discuss boat design concepts, projects, plans, reviews, resources, and general design topics.
      Discussions:
      15,228
      Messages:
      230,892
      Latest: Twin I/O to Twin Outboard Conversion Project fallguy, Apr 10, 2026 at 4:54 PM
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    2. Hydrodynamics and Aerodynamics

      Technical discussion on fluid dynamics: theory and analysis.
      Discussions:
      1,059
      Messages:
      23,938
      Latest: Overbalanced rudder with no balance area Gone Ballistic, Apr 7, 2026 at 10:06 AM
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    3. Stability

      Discuss stability issues and calculations, power and sail.
      Discussions:
      1,026
      Messages:
      16,911
      Latest: Can you run irregular shapes on maxsurf? TANSL, Apr 7, 2026 at 9:06 AM
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    4. Class Societies

      Scantling Rules, updates and discussion on Society Classification: Lloyds, ABS, DNV, ISO ...
      Discussions:
      419
      Messages:
      4,776
      Latest: Northern Star Lloyds william stokes, Apr 1, 2026
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    5. Powerboats

      Discuss production and custom powerboats and powerboat design.
      Discussions:
      2,720
      Messages:
      29,266
      Latest: Please help me find out what my boat is? Will Gilmore, Apr 10, 2026 at 9:02 AM
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    6. Propulsion

      Discuss marine engines, drives, and propulsion systems.
      Discussions:
      6,083
      Messages:
      72,148

      1. Props

      2. Surface Drives

      3. Jet Drives

      4. Outboards

      5. Sterndrives

      6. Pod Drives

      7. Inboards

      8. Diesel Engines

      9. Gas Engines

      10. Electric Propulsion

      11. Hybrid

      12. DIY Marinizing

      Latest: Electric outboard or pod drive? SolGato, Apr 7, 2026 at 2:38 PM
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    7. Motorsailers

      Discuss monohull and multihull motorsailers and motorsailer design.
      Discussions:
      161
      Messages:
      4,051
      Latest: Revolutionary Sailboat Design MotorCityBW, Feb 28, 2026
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    8. Sailboats

      Discuss monohull sailboat design, production and custom monohull sailboats.
      Discussions:
      4,525
      Messages:
      83,256
      Latest: This folding rudder everyone is talkin about... Tops, Apr 8, 2026 at 3:14 PM
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    9. Multihulls

      Discuss multi-hull sailboat design, production and custom sailing catamarans and trimarans.
      Discussions:
      3,401
      Messages:
      90,994
      Latest: Cat bulkhead design HelmutSheina, Apr 10, 2026 at 10:23 PM
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    10. OnBoard Electronics & Controls

      Discuss onboard mechanical, hydraulic, and electric control systems, monitoring, navigation, communication, systems integration and onboard computer systems.
      Discussions:
      884
      Messages:
      11,110
      Latest: I built my own marine monitoring system using a Raspberry Pi Skipper Don, Feb 25, 2026
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    11. Software

      Discuss marine design software: hull design, fairing, modeling, rendering, and CNC.
      Discussions:
      3,161
      Messages:
      25,415

      1. General Computing

      Latest: Gene-Hull Sailboat new version 3.5 and its post applications Gene-Stab and Gene-VPP Dolfiman, Apr 8, 2026 at 12:04 PM
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  2. Collaboration

    1. Option One

      Collaborative design of a power cruiser: trailerable, 300 mile range, economical at cruise & displacement speeds.
      Discussions:
      67
      Messages:
      1,727
      Latest: Cool trailerable boat parkland, Jan 9, 2015
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    2. Projects & Proposals

      An open forum to generate ideas for collaborative design projects.
      Discussions:
      451
      Messages:
      8,753
      Latest: Electric Launch Design optimized for semi-displacement speeds Stephen Ditmore, Nov 28, 2025
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  3. Construction

    1. Boatbuilding

      Discuss boatbuilding projects, methods, plans & kits, ask questions, and share your experiences.
      Discussions:
      11,030
      Messages:
      136,477

      1. Fiberglass and Composite Boat Building

      2. Metal Boat Building

      3. Wooden Boat Building and Restoration

      4. Electrical Systems

      Latest: Deck repair Wilc0, Apr 8, 2026 at 9:37 AM
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    2. Materials

      Discuss boatbuilding materials: composites, woods, metals, plastics, and finishes.
      Discussions:
      3,042
      Messages:
      32,645
      Latest: Question about fairing compound . . . starcmr, Apr 4, 2026 at 7:57 AM
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    3. Marketplace

      Boatbuilding materials, tools, equipment, molds, tooling and custom projects for sale or trade.
      Discussions:
      2,944
      Messages:
      13,290

      1. Boat Molds

      Latest: 14 Foot boat mold for sale. Tim Bittner, Apr 7, 2026 at 4:04 PM
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  4. Employment and Education

    1. Education

      Discuss schools and programs of Naval Architecture and Yacht Design and entry paths into a boat design career.
      Discussions:
      908
      Messages:
      6,489
      Latest: Faculty positions CDBarry, Jan 15, 2026
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    2. Services & Employment

      Post positions available and marine design and boatbuilding services offered.
      Discussions:
      1,885
      Messages:
      6,485
      Latest: Industrial Design & Marine Project Support - U.S + EU Jeandupont, Apr 1, 2026
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  5. Community

    1. All Things Boats & Boating

      Enjoy friendly conversation with other forum members and boaters on marine-related topics, boats, and boating in general.
      Discussions:
      4,303
      Messages:
      142,507

      1. Press Releases

      2. Wiki Archive

      3. Forum Questions and Suggestions

      4. Post-Tsunami

      Latest: Another 'help me identify this boat' request! Eurosnob, Apr 9, 2026 at 10:32 PM
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