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Design
Boat Design
Discuss boat design concepts, projects, plans, reviews, resources, and general design topics.
Threads
15,273
Messages
231,734
Threads
15,273
Messages
231,734
S
Scaling power to weight ratios from human power to models
Today at 4:54 PM
Skip Johnson
Hydrodynamics and Aerodynamics
Technical discussion on fluid dynamics: theory and analysis.
Threads
1,072
Messages
24,210
Threads
1,072
Messages
24,210
Aerodynamics of 'overlapped' staysails
Today at 10:35 AM
brian eiland
Stability
Discuss stability issues and calculations, power and sail.
Threads
1,028
Messages
16,957
Threads
1,028
Messages
16,957
P
How can I get started with the GHS software?
Friday at 11:51 AM
Pedro N
Class Societies
Scantling Rules, updates and discussion on Society Classification: Lloyds, ABS, DNV, ISO ...
Threads
420
Messages
4,792
Threads
420
Messages
4,792
A
Midship section deck beam
Jul 6, 2026
Ad Hoc
Powerboats
Discuss production and custom powerboats and powerboat design.
Threads
2,725
Messages
29,359
Sub-forums:
Propulsion (link)
Threads
2,725
Messages
29,359
1998 Mercury Force 9.9 2 stroke thermostat
Friday at 4:21 AM
HelmutSheina
Propulsion
Discuss marine engines, drives, and propulsion systems.
Threads
6,091
Messages
72,338
Sub-forums:
Props
Surface Drives
Jet Drives
Outboards
Sterndrives
Gas Engines (link)
Diesel Engines (link)
Pod Drives
Gas Engines (link)
Diesel Engines (link)
Inboards
Gas Engines (link)
Diesel Engines (link)
Diesel Engines
Gas Engines
Electric Propulsion
Hybrid
DIY Marinizing
Threads
6,091
Messages
72,338
C
Prop Selection for Production Boat
Friday at 3:54 PM
comfisherman
Motorsailers
Discuss monohull and multihull motorsailers and motorsailer design.
Threads
162
Messages
4,062
Threads
162
Messages
4,062
Buckler 24 - Information / Owners Manual Sought
Thursday at 12:07 AM
Boat Design Net Moderator
Sailboats
Discuss monohull sailboat design, production and custom monohull sailboats.
Threads
4,535
Messages
83,432
Threads
4,535
Messages
83,432
Aftmast rigs???
Saturday at 9:39 PM
Will Gilmore
Multihulls
Discuss multi-hull sailboat design, production and custom sailing catamarans and trimarans.
Threads
3,407
Messages
91,293
Threads
3,407
Messages
91,293
Planing Catamaran!
Today at 5:17 AM
HelmutSheina
OnBoard Electronics & Controls
Discuss onboard mechanical, hydraulic, and electric control systems, monitoring, navigation, communication, systems integration and onboard computer systems.
Threads
885
Messages
11,127
Threads
885
Messages
11,127
Anyone running Meshtastic on their boat? Looking for real-world experience
Jun 25, 2026
Skipper Don
Software
Discuss marine design software: hull design, fairing, modeling, rendering, and CNC.
Threads
3,166
Messages
25,448
Sub-forums:
General Computing
Threads
3,166
Messages
25,448
C
CompositeWorks For Rhino - FRP Engineering Supertool
Today at 5:55 AM
CADProjects
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