Onboard, the Fuel Management System which is often referred to as FMS, consists of more than 50 onboard sensors and meters, providing detailed information on everything from vessel speed to ventilation-system electricity consumption. The data is then be analysed by our captains and engineers who continuously work on improving the results. Stena Vision, on our Karlskrona and Gdynia route, was the first of our vessels to get the upgrade in 2012.