| | Forum | Last Post | Threads | Posts |
 |  | Discuss boat design concepts, projects, plans, reviews, resources, and general design topics. | |
Today 07:01 AM  | 9,969 | 139,212 |
| | Technical discussion on fluid dynamics: theory and analysis. | |
Today 07:42 AM | 270 | 7,213 |
| | Discuss stability issues and calculations, power and sail. | |
Yesterday 02:23 PM | 547 | 10,237 |
| | Scantling Rules, updates and discussion on Society Classification: Lloyds, ABS, DNV, ISO ... | |
05-14-2013 05:01 AM | 240 | 2,662 |
| | Discuss production and custom powerboats and powerboat design. | |
Today 03:54 AM | 2,112 | 21,820 |
| | Discuss marine engines, drives, and propulsion systems. Sub-Forums:  Props, Surface Drives, Jet Drives, Outboards, Sterndrives, Pod Drives, Inboards, Diesel Engines, Gas Engines, Hybrid, DIY Marinizing | |
Yesterday 11:26 PM | 4,254 | 48,843 |
| | Discuss monohull and multihull motorsailers and motorsailer design. | |
05-15-2013 11:51 AM | 111 | 3,070 |
| | Discuss monohull sailboats - production and custom - and sailboat design. | |
Today 05:47 AM | 3,266 | 57,685 |
| | Discuss multi-hull sailboats, catamarans and trimarans, and sailing multihull design. | |
Today 07:35 AM | 1,868 | 42,368 |
| | Discuss onboard mechanical, hydraulic, and electric control systems, monitoring, navigation, communication, systems integration and onboard computer systems. | |
05-18-2013 11:42 PM | 493 | 6,860 |
| | Discuss marine design software: hull design, fairing, modeling, rendering, and CNC. | |
Today 07:00 AM | 2,214 | 18,400 |
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