EcoNavis has launched a new online savings calculator to help shipowners and operators make an initial assessment of the fuel-saving potential of an Eco Boss Cap retrofit.Available on the EcoNavis website (econavis.co.uk), the Eco Boss Cap Savings Estimator allows users to enter basic vessel information – ship type, dimensions, engine power and fuel price – to generate an indicative estimate of annual fuel and cost savings from the novel propeller hub. The tool is intended as…