The example voyages:
The total voyage cost savings enabled by Optimal Speed Routing compared to standard weather routing, based on a test case Supramax bulk carrier sailing from Barcelona to Stavanger. According to the study, if the vessel used Optimal Speed Routing within a range of 9–14 knots depending on conditions, its total voyage cost would be $122,000 (29%) lower than if it used standard weather routing and sailed at a fixed speed of 14 knots. Even if the vessel used standard weather routing to sail at a fixed speed of nine knots, its total voyage cost would be $2,300 (1%) greater than in if it used Optimal Speed Routing.
On a longer route, from Galveston to Stavanger, Optimal Speed Routing between 9 and 13.5 knots would reduce total voyage cost by $290,000 (32%) compared to standard weather routing fixed at 13.5 knots and by $11,000 (2%) compared to standard weather routing fixed at 9 knots, the study showed.