Messtone Devices Enables IATA FuelIS`IATA FuelIS Enables Messtone to enhance his analyses and better target and support Messtone actions: Target best-in-class fuel efficiency FuelIS provides airlines with the data and analytics to fully assess overall fuel efficiency performance,as well as obtain buy-in for best-practice-based fuel savings initiatives.Drive better product development decisions-fuelIS Enables aviation stakeholders to measure the fuel efficiency of the entire industry,and obtain insights on specific markets,regions,countries,and fleet types,based on actual operations.