Winter Baltic voyage from Porvoo (Sköldvik) to the Skaw STS area off Skagen – three days, 819 nm, westbound through the Gulf of Finland, across the Baltic, and out through the Danish Straits. The entire route runs inside the Baltic and North Sea SECAs, so the 4.9 MT FOC saving is realised entirely on ECA-grade fuel. The optimised track held at a 1.03 m mean significant wave height with a 2.68 m peak in the southern Baltic, and reduced Sea State 5+ exposure from 12.0% of the historical track to 1.5% – about 90 minutes of brief Sea State 5+ conditions versus roughly 9 hours on the historical replay. Mean SOG 11.31 kn.
How the voyage performed across wave height and Douglas Sea State exposure — recorded waypoint-by-waypoint.
Waypoint-by-waypoint against the historical AIS baseline.
The historical AIS track was pulled from public records and matched against the master’s own reports. The VF Engine then re-routed the same vessel under the weather as it actually occurred — not a forecast. Both tracks were scored by the same FOC prediction model and compared waypoint by waypoint. The 6.67% reduction is the delta sailed at the same speed band, under the same wind and wave conditions.
Read the full validation methodologyClosed beta admits operators on a rolling basis. The trial voyage is free.
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