Boat Design Forums

  1. Design

    1. Boat Design

      Discuss boat design concepts, projects, plans, reviews, resources, and general design topics.
      Discussions:
      15,232
      Messages:
      230,972
      Latest: Vintage montero, Apr 22, 2026 at 4:31 PM
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    2. Hydrodynamics and Aerodynamics

      Technical discussion on fluid dynamics: theory and analysis.
      Discussions:
      1,061
      Messages:
      24,000
      Latest: Is circulation real? CDBarry, Apr 21, 2026 at 4:40 PM
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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
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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:
      29,269
      Latest: Aussie made 39' Ocean Trek with Levi Surface Drives bajansailor, Apr 16, 2026 at 1:05 AM
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    6. Propulsion

      Discuss marine engines, drives, and propulsion systems.
      Discussions:
      6,084
      Messages:
      72,152

      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: Mounting 5kw electric inboard mugball, Apr 19, 2026 at 9:28 AM
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    7. Motorsailers

      Discuss monohull and multihull motorsailers and motorsailer design.
      Discussions:
      162
      Messages:
      4,057
      Latest: Reduced rig on a motorsailer fish53, Apr 13, 2026
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    8. Sailboats

      Discuss monohull sailboat design, production and custom monohull sailboats.
      Discussions:
      4,526
      Messages:
      83,263
      Latest: "Designing" a double-handed racing dinghy TS19, Apr 22, 2026 at 12:23 PM
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    9. Multihulls

      Discuss multi-hull sailboat design, production and custom sailing catamarans and trimarans.
      Discussions:
      3,401
      Messages:
      91,019
      Latest: Cat bulkhead design montero, Apr 22, 2026 at 2:51 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:
      11,113
      Latest: Cameras in Engine Room rxcomposite, Apr 21, 2026 at 11:45 AM
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    11. Software

      Discuss marine design software: hull design, fairing, modeling, rendering, and CNC.
      Discussions:
      3,161
      Messages:
      25,418

      1. General Computing

      Latest: Question about and backstory of Navacal.com TANSL, Apr 15, 2026
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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:
      11,031
      Messages:
      136,491

      1. Fiberglass and Composite Boat Building

      2. Metal Boat Building

      3. Wooden Boat Building and Restoration

      4. Electrical Systems

      Latest: Boat Building Projects Underway pironiero, Apr 21, 2026 at 1:13 PM
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    2. Materials

      Discuss boatbuilding materials: composites, woods, metals, plastics, and finishes.
      Discussions:
      3,044
      Messages:
      32,682
      Latest: Leeboard core material choice skaraborgcraft, Apr 21, 2026 at 6:36 AM
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    3. Marketplace

      Boatbuilding materials, tools, equipment, molds, tooling and custom projects for sale or trade.
      Discussions:
      2,947
      Messages:
      13,293

      1. Boat Molds

      Latest: black fin 34ft hull only mold for sale Steve Miller, Apr 19, 2026 at 6:39 AM
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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
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