Try Lofter and Hydrostab.

These products are distribuited in two versions: Trial (free) and Licensed (purchased)

Enjoy exploring real case studies and experience the quick learning curve and the easy flexibility of these systems.

A 30-Day Trial, full working last Releases, complete with manuals and tutorials, are available for free download in this page.

Lofter - Trial version packadge

Your download is a zipped folder containing :


- The file “Readme_Lofter Trial Version” (Pdf), with instructions to install- The Lofter User Manual (Pdf)- The folder “Icons” (contains system icons - no delete).- The folder “Tutorials” with a collection of training studies for rudders, keels and hulls.- The Excel file Lofter******

See instructions to install the Lofter Trial Version here

Hydrostab - Trial version packadge


A new Version is under developmentOld 2013-2016 Versions are out of stock

System requirements:


- Microsoft Windows® 8, 8.1, 10- Microsoft Excel® 2010, 2013, 2016 or Office 365- 256 MB RAM (Recommended: 512 MB RAM or greater).- Hard Disk: about 50 MB free space.

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