Optimization of ship routes is an important consideration in maritime industry. By application of optimal control theory in conjunction with hydrodynamics and weather forecasting tools, most economical and safe route can be charted. Although a large volume of work is available addressing the ship-weather-routing problem. But most of them appear to concentrate on theoretical development related to the algorithm rather than the algorithm itself. The possible reason for limited detail on the actual algorithm that is used by ship navigators may be the commercial and proprietary nature of such...