HydroComp is releasing a major upgrade for its NavCad software tool, the company announced today. NavCad has been used for resistance and propulsion prediction for nearly three decades, and a "Premium Edition" is now available for users wanting a greater level of analytical capability. New features include a scripting (macro) API. This includes an easy-to-use scripting language that provides batch processing capability. Premium users will also be able to run NavCad from third-party software, including spreadsheets or simulation tools, as a calculation engine (i.e., coupled solver).