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 | zigzag 
Surface development code. Ideal for chined hulls. It develops the plates formed by two 3d splines. Linux and source code.  (Added: 22-Dec-2009 Hits: 23) | Rate | Visit
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 | Bearboat 
Robert Livingston's Free kayak design software is suitable for designing strip built small craft hulls. Easy to use, prints out bulkhead patterns. Connects to free kayak performance prediction software. (Added: 25-Sep-1999 Hits: 18918) | Rate | Visit
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 | Bentley View
A free CAD file viewing application for opening, viewing, and printing DGN, DWG and DXF file formats from Bentley Systems. (Added: 13-Aug-2007 Hits: 1259) | Rate | Visit
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 | BoatExpress 
Boat Design Software for Amateur Boat Builder or Professional. Site offer the free download of BoatExpress v 1.0. and the user guide.BoatExpress is a Windows mouse driven CAD that support the full process of boat design from hull definition to VPP.
Design follow the steps as defined in classical boat design. For the Naval architecture student or the amateur boat designer/builder witout a budget. No commercial intent. (Added: 8-Nov-2006 Hits: 14177) | Rate | Visit
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 | CADmechanic
Several free programs and add-ons for AutoCAD and DesignCAD (Added: 21-Feb-2005 Hits: 5667) | Rate | Visit
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 | Carene 40 / 50
Software to design hard chined boat hull to be constructed in plywood or sheetmetal. Free version for non-commercial use  (Added: 25-Sep-1999 Hits: 40171) | Rate | Visit
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 | Carlson Design 
Modeling of panels for plywood or metal chine construction (Added: 25-Sep-1999 Hits: 34848) | Rate | Visit
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 | Delftship Free 
DELFTship™free is a slightly simplified version of the professional hull modeling program but fully functional. Some of the more advanced features or file export formats have been excluded from the free version but otherwise both versions are completely the same. Files created by either version are also 100% exchangable without loss of information. The free edition is capable of displaying tanks created with the tank extension but the tanks can not be modified.
DELFTship™ free is perfectly suited for students or home users who like to design and visualize ships in 3D or need to perform simple hydrostatic and resistance calculations. (Added: 8-Apr-2008 Hits: 6159) | Rate | Visit
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 | FREE!ship 
FREE!ship is a surface-modeler for designing ships.FREE!ship uses subdivisiong surfaces rather then NURBS to create any type of hullshape. Further more, FREE!ship is open-source and totally free. (Added: 5-Jun-2005 Hits: 46804) | Rate | Visit
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 | Hawaii Marine Templates
The Excel© spreadsheets and MathCAD© and Word© templates on this site are especially suited for utilization by nautical specialists. This includes naval architects, ship design engineers, marine engineers, ocean engineers, dredge engineers, marine salvage engineers, maritime regulators, boat designers and yacht designers.
Ship, commercial boat and yacht owners and operators can also benefit from some of the boiler plate templates on this site. (Added: 11-Dec-2005 Hits: 2842) | Rate | Visit
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 | Hull Resistance Calculator 
Online calculator by Fiona Sinclair based on equations and formulae in "21st Century Multihulls" by Joseph Norwood Jr. The aim is to derive simple mathematical formulae for the design of minimum-resistance hulls. The formulae can be used either for non-planing displacement hulls or for multihull outriggers. It is assumed that the front section has semi-elliptic plan and exponential profile, while the rear section has exponential plan and semi-elliptic profile. (Added: 31-Dec-2001 Hits: 9140) | Rate | Visit
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 | HullDrag/32
A freeware (command line) utility that calculates hull resistance and optimizes LCB and/or Cp using the Delft University derived polynomials. (Added: 7-Feb-2000 Hits: 8721) | Rate | Visit
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 | Hullform
Hull design software: freeware version 9S for Windows 95 and later, higher-level versions also (Added: 4-Jan-2004 Hits: 36641) | Rate | Visit
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 | JSDN
jSDN is a NURBS based yacht modeling and analysis software. It is based on SDN, but it has been redesigned with many new functionalities and much more accurate calculations, which are being validated with real designs. Although SDN was programmed in C, jSDN has been developed using the Java language, so that it can be run on many operating systems. The only requisites are a Java virtual machine and the Java 3D software (J3D 1.4 or above). The main goal of jSDN is allowing the designer to fast prototype any kind of sailing yacht, including elements like hull, spars, sails and appendages. Although it is not limited to sailing vessels, both the working procedure and tools are targeted and optimized for those. (Added: 12-Jun-2008 Hits: 1194) | Rate | Visit
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