Not quite. - The 43% is peak drag reduction in the transition zone only, the bit between laminar and turbulent flow, not across all flight conditions. - Aerod

Not quite. - The 43% is peak drag reduction in the transition zone only, the bit between laminar and turbulent flow, not across all flight conditions. - Aerodynamic drag is one part of fuel burn, not a 1:1 proxy. There's also engine efficiency, etc. - This is skin friction drag on a wind tunnel model, not a full aircraft which has extra bits like windscreen wipers. I still think it's exciting but I reckon fuel savings would amount to a few percent (aeronautical engineers, please correct me if I'm wrong).