This page has a link to an Excel spreadsheet that calculates optimum speed as a function of fuel price and other factors: http://www.intertanko.com/Members-Info

This page has a link to an Excel spreadsheet that calculates optimum speed as a function of fuel price and other factors: http://www.intertanko.com/Members-Information/benchmark/Optimum-speed-calvulator/ http://www.intertanko.com/Members-Information/benchmark/Opti...